Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

20 files changed, 14656 insertions, 0 deletions

diff --git a/nsprpub/config/Makefile.in b/nsprpub/config/Makefile.in
new file mode 100644
index 0000000000..7c6c815de6
--- /dev/null
+++ b/nsprpub/config/Makefile.in
@@ -0,0 +1,108 @@
+#! gmake
+# 
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+MOD_DEPTH	= ..
+topsrcdir	= @top_srcdir@
+srcdir		= @srcdir@
+VPATH		= @srcdir@
+
+include $(MOD_DEPTH)/config/autoconf.mk
+
+# Indicate that this directory builds build tools.
+INTERNAL_TOOLS	= 1
+
+# For sanity's sake, we compile nsinstall without the wrapped system
+# headers, so that we can use it to set up the wrapped system headers.
+VISIBILITY_FLAGS =
+
+# autoconf.mk must be deleted last (from the top-level directory)
+# because it is included by every makefile.
+DIST_GARBAGE	= nsprincl.mk nsprincl.sh nspr-config nspr.pc
+
+RELEASE_BINS	= nspr-config
+
+include $(topsrcdir)/config/config.mk
+
+CSRCS	= now.c
+
+# This version hasn't been ported for us; the one in mozilla/config has
+ifneq ($(OS_ARCH),OS2)
+CSRCS  += nsinstall.c
+ 
+PLSRCS	= nfspwd.pl
+endif
+
+ifeq (,$(CROSS_COMPILE)$(filter-out WINNT OS2,$(OS_ARCH)))
+PROG_SUFFIX = .exe
+else
+PROG_SUFFIX =
+endif
+
+# Temporary workaround to disable the generation of
+# library build time because now.c uses the 'long long'
+# data type that's not available on some platforms.
+ifeq (,$(filter-out QNX SCOOS UNIXWARE,$(OS_ARCH)))
+DEFINES += -DOMIT_LIB_BUILD_TIME
+endif
+
+ifeq ($(OS_ARCH), HP-UX)
+    ifeq ($(USE_64),1)
+        XLDOPTS += +DD64
+    endif
+endif
+
+ifeq ($(OS_ARCH), OS2)
+XCFLAGS = $(OS_CFLAGS)
+endif
+
+include $(topsrcdir)/config/rules.mk
+
+PROGS	= $(OBJDIR)/now$(PROG_SUFFIX)
+
+ifeq (,$(CROSS_COMPILE)$(filter-out OS2 WINNT,$(OS_ARCH)))
+TARGETS = $(PROGS)
+else
+ifeq (,$(filter-out WINCE,$(OS_ARCH)))
+TARGETS = $(PROGS)
+else
+PROGS	+= $(OBJDIR)/nsinstall$(PROG_SUFFIX)
+TARGETS = $(PROGS) $(PLSRCS:.pl=)
+endif
+endif
+
+OUTOPTION = -o # end of the line
+ifeq (,$(filter-out WINNT WIN95 WINCE,$(OS_TARGET)))
+ifndef NS_USE_GCC
+OUTOPTION = -Fe
+endif
+endif
+
+# Redefine MAKE_OBJDIR for just this directory
+define MAKE_OBJDIR
+if test ! -d $(@D); then rm -rf $(@D); mkdir $(@D); else true; fi
+endef
+
+export:: $(TARGETS)
+	rm -f $(dist_bindir)/nspr-config
+
+ifdef WRAP_SYSTEM_INCLUDES
+export::
+	if test ! -d system_wrappers; then mkdir system_wrappers; fi
+	$(PERL) $(srcdir)/make-system-wrappers.pl system_wrappers < $(srcdir)/system-headers
+	$(INSTALL) system_wrappers $(dist_includedir)
+endif
+
+$(OBJDIR)/%$(PROG_SUFFIX): $(OBJDIR)/%.$(OBJ_SUFFIX)
+	@$(MAKE_OBJDIR)
+	$(CC) $(XCFLAGS) $< $(LDFLAGS) $(XLDOPTS) $(OUTOPTION)$@
+
+install:: nspr.m4
+	$(NSINSTALL) -D $(DESTDIR)$(datadir)/aclocal
+	$(NSINSTALL) -t -m 0644 $< $(DESTDIR)$(datadir)/aclocal
+
+install:: nspr.pc
+	$(NSINSTALL) -D $(DESTDIR)$(libdir)/pkgconfig
+	$(NSINSTALL) -t -m 0644 $< $(DESTDIR)$(libdir)/pkgconfig
diff --git a/nsprpub/config/autoconf.mk.in b/nsprpub/config/autoconf.mk.in
new file mode 100644
index 0000000000..08a1024adb
--- /dev/null
+++ b/nsprpub/config/autoconf.mk.in
@@ -0,0 +1,147 @@
+# -*- Mode: Makefile -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+INCLUDED_AUTOCONF_MK = 1
+USE_AUTOCONF	= 1
+@SHELL_OVERRIDE@
+MOZILLA_CLIENT	= @MOZILLA_CLIENT@
+
+prefix		= @prefix@
+exec_prefix	= @exec_prefix@
+bindir		= @bindir@
+includedir	= @includedir@
+libdir		= @libdir@
+datarootdir	= @datarootdir@
+datadir		= @datadir@
+
+dist_prefix	= @dist_prefix@
+dist_bindir	= @dist_bindir@
+dist_includedir = @dist_includedir@
+dist_libdir	= @dist_libdir@
+
+DIST		= $(dist_prefix)
+
+RELEASE_OBJDIR_NAME = @RELEASE_OBJDIR_NAME@
+OBJDIR_NAME	= @OBJDIR_NAME@
+OBJDIR		= @OBJDIR@
+# We do magic with OBJ_SUFFIX in config.mk, the following ensures we don't
+# manually use it before config.mk inclusion
+OBJ_SUFFIX	= $(error config/config.mk needs to be included before using OBJ_SUFFIX)
+_OBJ_SUFFIX	= @OBJ_SUFFIX@
+LIB_SUFFIX	= @LIB_SUFFIX@
+DLL_SUFFIX	= @DLL_SUFFIX@
+ASM_SUFFIX	= @ASM_SUFFIX@
+MOD_NAME	= @NSPR_MODNAME@
+
+MOD_MAJOR_VERSION = @MOD_MAJOR_VERSION@
+MOD_MINOR_VERSION = @MOD_MINOR_VERSION@
+MOD_PATCH_VERSION = @MOD_PATCH_VERSION@
+
+LIBNSPR		= @LIBNSPR@
+LIBPLC		= @LIBPLC@
+
+CROSS_COMPILE	= @CROSS_COMPILE@
+MOZ_OPTIMIZE	= @MOZ_OPTIMIZE@
+MOZ_DEBUG	= @MOZ_DEBUG@
+MOZ_DEBUG_SYMBOLS = @MOZ_DEBUG_SYMBOLS@
+
+USE_CPLUS	= @USE_CPLUS@
+USE_IPV6	= @USE_IPV6@
+USE_N32		= @USE_N32@
+USE_X32		= @USE_X32@
+USE_64		= @USE_64@
+ENABLE_STRIP	= @ENABLE_STRIP@
+
+USE_PTHREADS	= @USE_PTHREADS@
+USE_BTHREADS	= @USE_BTHREADS@
+PTHREADS_USER	= @USE_USER_PTHREADS@
+CLASSIC_NSPR	= @USE_NSPR_THREADS@
+
+AS		= @AS@
+ASFLAGS		= @ASFLAGS@
+CC		= @CC@
+CCC		= @CXX@
+NS_USE_GCC	= @GNU_CC@
+GCC_USE_GNU_LD	= @GCC_USE_GNU_LD@
+MSC_VER		= @MSC_VER@
+AR		= @AR@
+AR_FLAGS	= @AR_FLAGS@
+LD		= @LD@
+RANLIB		= @RANLIB@
+PERL		= @PERL@
+RC		= @RC@
+RCFLAGS		= @RCFLAGS@
+STRIP		= @STRIP@
+NSINSTALL	= @NSINSTALL@
+FILTER		= @FILTER@
+IMPLIB		= @IMPLIB@
+CYGWIN_WRAPPER	= @CYGWIN_WRAPPER@
+MT		= @MT@
+
+OS_CPPFLAGS	= @CPPFLAGS@
+OS_CFLAGS	= $(OS_CPPFLAGS) @CFLAGS@ $(DSO_CFLAGS)
+OS_CXXFLAGS	= $(OS_CPPFLAGS) @CXXFLAGS@ $(DSO_CFLAGS)
+OS_LIBS         = @OS_LIBS@
+OS_LDFLAGS	= @LDFLAGS@
+OS_DLLFLAGS	= @OS_DLLFLAGS@
+DLLFLAGS	= @DLLFLAGS@
+EXEFLAGS  = @EXEFLAGS@
+OPTIMIZER	= @OPTIMIZER@
+
+PROFILE_GEN_CFLAGS  = @PROFILE_GEN_CFLAGS@
+PROFILE_GEN_LDFLAGS = @PROFILE_GEN_LDFLAGS@
+PROFILE_USE_CFLAGS  = @PROFILE_USE_CFLAGS@
+PROFILE_USE_LDFLAGS = @PROFILE_USE_LDFLAGS@
+
+MKSHLIB		= @MKSHLIB@
+WRAP_LDFLAGS	= @WRAP_LDFLAGS@
+DSO_CFLAGS	= @DSO_CFLAGS@
+DSO_LDOPTS	= @DSO_LDOPTS@
+
+RESOLVE_LINK_SYMBOLS = @RESOLVE_LINK_SYMBOLS@
+
+HOST_CC		= @HOST_CC@
+HOST_CFLAGS	= @HOST_CFLAGS@
+HOST_LDFLAGS	= @HOST_LDFLAGS@
+
+DEFINES		= @DEFINES@ @DEFS@
+
+MDCPUCFG_H	= @MDCPUCFG_H@
+PR_MD_CSRCS	= @PR_MD_CSRCS@
+PR_MD_ASFILES	= @PR_MD_ASFILES@
+PR_MD_ARCH_DIR	= @PR_MD_ARCH_DIR@
+CPU_ARCH	= @CPU_ARCH@
+
+OS_TARGET	= @OS_TARGET@
+OS_ARCH		= @OS_ARCH@
+OS_RELEASE	= @OS_RELEASE@
+OS_TEST		= @OS_TEST@
+
+NOSUCHFILE	= @NOSUCHFILE@
+AIX_LINK_OPTS	= @AIX_LINK_OPTS@
+MOZ_OBJFORMAT	= @MOZ_OBJFORMAT@
+ULTRASPARC_LIBRARY = @ULTRASPARC_LIBRARY@
+
+OBJECT_MODE	= @OBJECT_MODE@
+ifdef OBJECT_MODE
+export OBJECT_MODE
+endif
+
+VISIBILITY_FLAGS = @VISIBILITY_FLAGS@
+WRAP_SYSTEM_INCLUDES = @WRAP_SYSTEM_INCLUDES@
+
+MACOSX_DEPLOYMENT_TARGET = @MACOSX_DEPLOYMENT_TARGET@
+ifdef MACOSX_DEPLOYMENT_TARGET
+export MACOSX_DEPLOYMENT_TARGET
+endif
+
+MACOS_SDK_DIR	= @MACOS_SDK_DIR@
+
+
+NEXT_ROOT	= @NEXT_ROOT@
+ifdef NEXT_ROOT
+export NEXT_ROOT
+endif
diff --git a/nsprpub/config/config.mk b/nsprpub/config/config.mk
new file mode 100644
index 0000000000..05db0761ab
--- /dev/null
+++ b/nsprpub/config/config.mk
@@ -0,0 +1,169 @@
+#! gmake
+# 
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# Configuration information for building in the NSPR source module
+
+# Define an include-at-most-once-flag
+NSPR_CONFIG_MK	= 1
+
+#
+# The variable definitions in this file are inputs to NSPR's
+# build system.  This file, if present, is included at the
+# beginning of config.mk.
+#
+# For example:
+#
+# MOZ_OPTIMIZE=1
+# USE_PTHREADS=1
+# NS_USE_GCC=
+#
+ifndef topsrcdir
+topsrcdir=$(MOD_DEPTH)
+endif
+
+ifndef srcdir
+srcdir=.
+endif
+
+NFSPWD		= $(MOD_DEPTH)/config/nfspwd
+
+CFLAGS		= $(VISIBILITY_FLAGS) $(CC_ONLY_FLAGS) $(OPTIMIZER)\
+		  $(OS_CFLAGS) $(XP_DEFINE) $(DEFINES) $(INCLUDES) $(XCFLAGS)
+CCCFLAGS	= $(VISIBILITY_FLAGS) $(CCC_ONLY_FLAGS) $(OPTIMIZER)\
+		  $(OS_CFLAGS) $(XP_DEFINE) $(DEFINES) $(INCLUDES) $(XCFLAGS)
+# For purify
+NOMD_CFLAGS	= $(CC_ONLY_FLAGS) $(OPTIMIZER) $(NOMD_OS_CFLAGS)\
+		  $(XP_DEFINE) $(DEFINES) $(INCLUDES) $(XCFLAGS)
+NOMD_CCFLAGS	= $(CCC_ONLY_FLAGS) $(OPTIMIZER) $(NOMD_OS_CFLAGS)\
+		  $(XP_DEFINE) $(DEFINES) $(INCLUDES) $(XCFLAGS)
+
+LDFLAGS		= $(OS_LDFLAGS)
+
+# Enable profile-guided optimization
+ifndef NO_PROFILE_GUIDED_OPTIMIZE
+ifdef MOZ_PROFILE_GENERATE
+CFLAGS += $(PROFILE_GEN_CFLAGS)
+LDFLAGS += $(PROFILE_GEN_LDFLAGS)
+DLLFLAGS += $(PROFILE_GEN_LDFLAGS)
+ifeq (WINNT,$(OS_ARCH))
+AR_FLAGS += -LTCG
+endif
+endif # MOZ_PROFILE_GENERATE
+
+ifdef MOZ_PROFILE_USE
+CFLAGS += $(PROFILE_USE_CFLAGS)
+LDFLAGS += $(PROFILE_USE_LDFLAGS)
+DLLFLAGS += $(PROFILE_USE_LDFLAGS)
+ifeq (WINNT,$(OS_ARCH))
+AR_FLAGS += -LTCG
+endif
+endif # MOZ_PROFILE_USE
+endif # NO_PROFILE_GUIDED_OPTIMIZE
+
+define MAKE_OBJDIR
+if test ! -d $(@D); then rm -rf $(@D); $(NSINSTALL) -D $(@D); fi
+endef
+
+LINK_DLL	= $(LD) $(OS_DLLFLAGS) $(DLLFLAGS)
+
+ifeq ($(OS_ARCH),Darwin)
+PWD := $(shell pwd)
+endif
+
+ifeq (,$(CROSS_COMPILE)$(filter-out WINNT OS2, $(OS_ARCH)))
+INSTALL		= $(NSINSTALL)
+else
+ifeq ($(NSDISTMODE),copy)
+# copy files, but preserve source mtime
+INSTALL		= $(NSINSTALL) -t
+else
+ifeq ($(NSDISTMODE),absolute_symlink)
+# install using absolute symbolic links
+ifeq ($(OS_ARCH),Darwin)
+INSTALL		= $(NSINSTALL) -L $(PWD)
+else
+INSTALL		= $(NSINSTALL) -L `$(NFSPWD)`
+endif
+else
+# install using relative symbolic links
+INSTALL		= $(NSINSTALL) -R
+endif
+endif
+endif # (WINNT || OS2) && !CROSS_COMPILE
+
+DEPENDENCIES	= $(OBJDIR)/.md
+
+ifdef BUILD_DEBUG_GC
+DEFINES		+= -DDEBUG_GC
+endif
+
+GARBAGE		+= $(DEPENDENCIES) core $(wildcard core.[0-9]*)
+
+DIST_GARBAGE += Makefile
+
+####################################################################
+#
+# The NSPR-specific configuration
+#
+####################################################################
+
+DEFINES += -DFORCE_PR_LOG
+
+ifeq ($(_PR_NO_CLOCK_TIMER),1)
+DEFINES += -D_PR_NO_CLOCK_TIMER
+endif
+
+ifeq ($(USE_PTHREADS), 1)
+DEFINES += -D_PR_PTHREADS -UHAVE_CVAR_BUILT_ON_SEM
+endif
+
+ifeq ($(PTHREADS_USER), 1)
+DEFINES += -DPTHREADS_USER -UHAVE_CVAR_BUILT_ON_SEM
+endif
+
+ifeq ($(USE_IPV6),1)
+DEFINES += -D_PR_INET6
+endif
+
+ifeq ($(MOZ_UNICODE),1)
+DEFINES += -DMOZ_UNICODE
+endif
+
+####################################################################
+#
+# Configuration for the release process
+#
+####################################################################
+
+MDIST = /m/dist
+ifeq ($(OS_ARCH),WINNT)
+MDIST = //helium/dist
+MDIST_DOS = $(subst /,\\,$(MDIST))
+endif
+
+# RELEASE_DIR is ns/dist/<module name>
+
+RELEASE_DIR = $(MOD_DEPTH)/dist/release/$(MOD_NAME)
+
+RELEASE_INCLUDE_DIR = $(RELEASE_DIR)/$(BUILD_NUMBER)/$(OBJDIR_NAME)/include
+RELEASE_BIN_DIR = $(RELEASE_DIR)/$(BUILD_NUMBER)/$(OBJDIR_NAME)/bin
+RELEASE_LIB_DIR = $(RELEASE_DIR)/$(BUILD_NUMBER)/$(OBJDIR_NAME)/lib
+
+# autoconf.mk sets OBJ_SUFFIX to an error to avoid use before including
+# this file
+OBJ_SUFFIX := $(_OBJ_SUFFIX)
+
+# PGO builds with GCC build objects with instrumentation in a first pass,
+# then objects optimized, without instrumentation, in a second pass. If
+# we overwrite the ojects from the first pass with those from the second,
+# we end up not getting instrumentation data for better optimization on
+# incremental builds. As a consequence, we use a different object suffix
+# for the first pass.
+ifdef MOZ_PROFILE_GENERATE
+ifdef NS_USE_GCC
+OBJ_SUFFIX := i_o
+endif
+endif
diff --git a/nsprpub/config/gcc_hidden.h b/nsprpub/config/gcc_hidden.h
new file mode 100644
index 0000000000..075e68c88b
--- /dev/null
+++ b/nsprpub/config/gcc_hidden.h
@@ -0,0 +1,6 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* Begin all files as hidden visibility */
+#pragma GCC visibility push(hidden)
diff --git a/nsprpub/config/libc_r.h b/nsprpub/config/libc_r.h
new file mode 100644
index 0000000000..2af8f2efa7
--- /dev/null
+++ b/nsprpub/config/libc_r.h
@@ -0,0 +1,126 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/* libc_r.h  --  macros, defines, etc. to make using reentrant libc calls */
+/*               a bit easier.  This was initially done for AIX pthreads, */
+/*               but should be usable for anyone...                       */
+
+/* Most of these use locally defined space instead of static library space. */
+/* Because of this, we use the _INIT_R to declare/allocate space (stack),   */
+/* and the plain routines to actually do it..._WARNING_: avoid allocating   */
+/* memory wherever possible.  Memory allocation is fairly expensive, at     */
+/* least on AIX...use arrays instead (which allocate from the stack.)       */
+/* I know the names are a bit strange, but I wanted to be fairly certain    */
+/* that we didn't have any namespace corruption...in general, the inits are */
+/* R_<name>_INIT_R(), and the actual calls are R_<name>_R().                */
+
+#ifndef _LIBC_R_H
+#define _LIBC_R_H
+
+/************/
+/*  strtok  */
+/************/
+#define R_STRTOK_INIT_R() \
+    char *r_strtok_r=NULL
+
+#define R_STRTOK_R(return,source,delim) \
+    return=strtok_r(source,delim,&r_strtok_r)
+
+#define R_STRTOK_NORET_R(source,delim) \
+    strtok_r(source,delim,&r_strtok_r)
+
+/**************/
+/*  strerror  */
+/**************/
+#define R_MAX_STRERROR_LEN_R 8192     /* Straight from limits.h */
+
+#define R_STRERROR_INIT_R() \
+    char r_strerror_r[R_MAX_STRERROR_LEN_R]
+
+#define R_STRERROR_R(val) \
+    strerror_r(val,r_strerror_r,R_MAX_STRERROR_LEN_R)
+
+/*****************/
+/*  time things  */
+/*****************/
+#define R_ASCTIME_INIT_R() \
+    char r_asctime_r[26]
+
+#define R_ASCTIME_R(val) \
+    asctime_r(val,r_asctime_r)
+
+#define R_CTIME_INIT_R() \
+    char r_ctime_r[26]
+
+#define R_CTIME_R(val) \
+    ctime_r(val,r_ctime_r)
+
+#define R_GMTIME_INIT_R() \
+    struct tm r_gmtime_r
+
+#define R_GMTIME_R(time) \
+    gmtime_r(time,&r_gmtime_r)
+
+#define R_LOCALTIME_INIT_R() \
+   struct tm r_localtime_r
+
+#define R_LOCALTIME_R(val) \
+   localtime_r(val,&r_localtime_r)
+
+/***********/
+/*  crypt  */
+/***********/
+#include <crypt.h>
+#define R_CRYPT_INIT_R() \
+    CRYPTD r_cryptd_r; \
+    bzero(&r_cryptd_r,sizeof(CRYPTD))
+
+#define R_CRYPT_R(pass,salt) \
+    crypt_r(pass,salt,&r_cryptd_r)
+
+/**************/
+/*  pw stuff  */
+/**************/
+#define R_MAX_PW_LEN_R 1024
+/* The following must be after the last declaration, but */
+/* before the first bit of code...                       */
+#define R_GETPWNAM_INIT_R(pw_ptr) \
+    struct passwd r_getpwnam_pw_r; \
+    char r_getpwnam_line_r[R_MAX_PW_LEN_R]; \
+    pw_ptr = &r_getpwnam_pw_r
+
+#define R_GETPWNAM_R(name) \
+    getpwnam_r(name,&r_getpwnam_pw_r,r_getpwnam_line_r,R_MAX_PW_LEN_R)
+
+/*******************/
+/*  gethost stuff  */
+/*******************/
+#define R_GETHOSTBYADDR_INIT_R() \
+    struct hostent r_gethostbyaddr_r; \
+    struct hostent_data r_gethostbyaddr_data_r
+
+#define R_GETHOSTBYADDR_R(addr,len,type,xptr_ent) \
+    bzero(&r_gethostbyaddr_r,sizeof(struct hostent)); \
+    bzero(&r_gethostbyaddr_data_r,sizeof(struct hostent_data)); \
+    xptr_ent = &r_gethostbyaddr_r; \
+    if (gethostbyaddr_r(addr,len,type, \
+       &r_gethostbyaddr_r,&r_gethostbyaddr_data_r) == -1) { \
+           xptr_ent = NULL; \
+    }
+
+#define R_GETHOSTBYNAME_INIT_R() \
+    struct hostent r_gethostbyname_r; \
+    struct hostent_data r_gethostbyname_data_r
+
+#define R_GETHOSTBYNAME_R(name,xptr_ent) \
+    bzero(&r_gethostbyname_r,sizeof(struct hostent)); \
+    bzero(&r_gethostbyname_data_r,sizeof(struct hostent_data)); \
+    xptr_ent = &r_gethostbyname_r; \
+    if (gethostbyname_r(name, \
+       &r_gethostbyname_r,&r_gethostbyname_data_r) == -1) { \
+          xptr_ent = NULL; \
+    }
+
+#endif /* _LIBC_R_H */
diff --git a/nsprpub/config/make-system-wrappers.pl b/nsprpub/config/make-system-wrappers.pl
new file mode 100644
index 0000000000..fa0873a78e
--- /dev/null
+++ b/nsprpub/config/make-system-wrappers.pl
@@ -0,0 +1,26 @@
+#!/usr/bin/perl
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+$output_dir = shift;
+
+while (<STDIN>) {
+    chomp;
+    if (-e "$output_dir/$_") {
+	next;
+    }
+
+    if (/(.*)\/[^\/*]/) {
+	mkdir "$output_dir/$1";
+    }
+
+    open OUT, ">$output_dir/$_";
+    print OUT "#pragma GCC system_header\n";  # suppress include_next warning
+    print OUT "#pragma GCC visibility push(default)\n";
+    print OUT "#include_next \<$_\>\n";
+    print OUT "#pragma GCC visibility pop\n";
+    close OUT;
+}
+
diff --git a/nsprpub/config/nfspwd.pl b/nsprpub/config/nfspwd.pl
new file mode 100644
index 0000000000..1e66be3568
--- /dev/null
+++ b/nsprpub/config/nfspwd.pl
@@ -0,0 +1,18 @@
+#! perl
+# 
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+require "fastcwd.pl";
+
+$_ = &fastcwd;
+if (m@^/[uh]/@o || s@^/tmp_mnt/@/@o) {
+    print("$_\n");
+} elsif ((($user, $rest) = m@^/usr/people/(\w+)/(.*)@o)
+      && readlink("/u/$user") eq "/usr/people/$user") {
+    print("/u/$user/$rest\n");
+} else {
+    chop($host = `hostname`);
+    print("/h/$host$_\n");
+}
diff --git a/nsprpub/config/now.c b/nsprpub/config/now.c
new file mode 100644
index 0000000000..2893c5b7a1
--- /dev/null
+++ b/nsprpub/config/now.c
@@ -0,0 +1,41 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <stdio.h>
+#include <time.h>
+
+int main(int argc, char **argv)
+{
+#if defined(OMIT_LIB_BUILD_TIME)
+    /*
+     * Some platforms don't have any 64-bit integer type
+     * such as 'long long'.  Because we can't use NSPR's
+     * PR_snprintf in this program, it is difficult to
+     * print a static initializer for PRInt64 (a struct).
+     * So we print nothing.  The makefiles that build the
+     * shared libraries will detect the empty output string
+     * of this program and omit the library build time
+     * in PRVersionDescription.
+     */
+#elif defined(_MSC_VER)
+    __int64 now;
+    time_t sec;
+
+    sec = time(NULL);
+    now = (1000000i64) * sec;
+    fprintf(stdout, "%I64d", now);
+#else
+    long long now;
+    time_t sec;
+
+    sec = time(NULL);
+    now = (1000000LL) * sec;
+    fprintf(stdout, "%lld", now);
+#endif
+
+    return 0;
+}  /* main */
+
+/* now.c */
diff --git a/nsprpub/config/nsinstall.c b/nsprpub/config/nsinstall.c
new file mode 100644
index 0000000000..ee6a111552
--- /dev/null
+++ b/nsprpub/config/nsinstall.c
@@ -0,0 +1,560 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+** Netscape portable install command.
+**
+** Brendan Eich, 7/20/95
+*/
+#include <stdio.h>  /* OSF/1 requires this before grp.h, so put it first */
+#include <assert.h>
+#include <fcntl.h>
+#include <grp.h>
+#include <pwd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <utime.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <dirent.h>
+#include <errno.h>
+#include <stdarg.h>
+#ifdef USE_REENTRANT_LIBC
+#include "libc_r.h"
+#endif /* USE_REENTRANT_LIBC */
+
+#include "pathsub.h"
+
+#define HAVE_FCHMOD
+
+
+/*
+ * Does getcwd() take NULL as the first argument and malloc
+ * the result buffer?
+ */
+#if !defined(DARWIN)
+#define GETCWD_CAN_MALLOC
+#endif
+
+#if defined(LINUX) || defined(__GNU__) || defined(__GLIBC__)
+#include <getopt.h>
+#endif
+
+#if defined(SCO) || defined(UNIXWARE)
+#if !defined(S_ISLNK) && defined(S_IFLNK)
+#define S_ISLNK(a)  (((a) & S_IFMT) == S_IFLNK)
+#endif
+#endif
+
+#ifdef QNX
+#define d_ino d_stat.st_ino
+#endif
+
+static void
+usage(void)
+{
+    fprintf(stderr,
+            "usage: %s [-C cwd] [-L linkprefix] [-m mode] [-o owner] [-g group]\n"
+            "       %*s [-DdltR] file [file ...] directory\n",
+            program, (int)strlen(program), "");
+    exit(2);
+}
+
+static int
+mkdirs(char *path, mode_t mode)
+{
+    char *cp;
+    struct stat sb;
+    int res;
+
+    while (*path == '/' && path[1] == '/') {
+        path++;
+    }
+    for (cp = strrchr(path, '/'); cp && cp != path && cp[-1] == '/'; cp--)
+        ;
+    if (cp && cp != path) {
+        *cp = '\0';
+        if ((stat(path, &sb) < 0 || !S_ISDIR(sb.st_mode)) &&
+            mkdirs(path, mode) < 0) {
+            return -1;
+        }
+        *cp = '/';
+    }
+    res = mkdir(path, mode);
+    if ((res != 0) && (errno == EEXIST)) {
+        return 0;
+    }
+    else {
+        return res;
+    }
+}
+
+static uid_t
+touid(char *owner)
+{
+    struct passwd *pw;
+    uid_t uid;
+    char *cp;
+
+    pw = getpwnam(owner);
+    if (pw) {
+        return pw->pw_uid;
+    }
+    uid = strtol(owner, &cp, 0);
+    if (uid == 0 && cp == owner) {
+        fail("cannot find uid for %s", owner);
+    }
+    return uid;
+}
+
+static gid_t
+togid(char *group)
+{
+    struct group *gr;
+    gid_t gid;
+    char *cp;
+
+    gr = getgrnam(group);
+    if (gr) {
+        return gr->gr_gid;
+    }
+    gid = strtol(group, &cp, 0);
+    if (gid == 0 && cp == group) {
+        fail("cannot find gid for %s", group);
+    }
+    return gid;
+}
+
+int
+main(int argc, char **argv)
+{
+    int onlydir, dodir, dolink, dorelsymlink, dotimes, opt, len, lplen, tdlen, bnlen, exists, fromfd, tofd, cc, wc;
+    mode_t mode = 0755;
+    char *linkprefix, *owner, *group, *cp, *cwd, *todir, *toname, *name, *base, *linkname, *bp, buf[BUFSIZ];
+    uid_t uid;
+    gid_t gid;
+    struct stat sb, tosb;
+    struct utimbuf utb;
+
+    program = argv[0];
+    cwd = linkname = linkprefix = owner = group = 0;
+    onlydir = dodir = dolink = dorelsymlink = dotimes = lplen = 0;
+
+    while ((opt = getopt(argc, argv, "C:DdlL:Rm:o:g:t")) != EOF) {
+        switch (opt) {
+            case 'C':
+                cwd = optarg;
+                break;
+            case 'D':
+                onlydir = 1;
+                break;
+            case 'd':
+                dodir = 1;
+                break;
+            case 'l':
+                dolink = 1;
+                break;
+            case 'L':
+                linkprefix = optarg;
+                lplen = strlen(linkprefix);
+                dolink = 1;
+                break;
+            case 'R':
+                dolink = dorelsymlink = 1;
+                break;
+            case 'm':
+                mode = strtoul(optarg, &cp, 8);
+                if (mode == 0 && cp == optarg) {
+                    usage();
+                }
+                break;
+            case 'o':
+                owner = optarg;
+                break;
+            case 'g':
+                group = optarg;
+                break;
+            case 't':
+                dotimes = 1;
+                break;
+            default:
+                usage();
+        }
+    }
+
+    argc -= optind;
+    argv += optind;
+    if (argc < 2 - onlydir) {
+        usage();
+    }
+
+    todir = argv[argc-1];
+    if ((stat(todir, &sb) < 0 || !S_ISDIR(sb.st_mode)) &&
+        mkdirs(todir, 0777) < 0) {
+        fail("cannot make directory %s", todir);
+    }
+    if (onlydir) {
+        return 0;
+    }
+
+    if (!cwd) {
+#ifdef GETCWD_CAN_MALLOC
+        cwd = getcwd(0, PATH_MAX);
+#else
+        cwd = malloc(PATH_MAX + 1);
+        cwd = getcwd(cwd, PATH_MAX);
+#endif
+    }
+    xchdir(todir);
+#ifdef GETCWD_CAN_MALLOC
+    todir = getcwd(0, PATH_MAX);
+#else
+    todir = malloc(PATH_MAX + 1);
+    todir = getcwd(todir, PATH_MAX);
+#endif
+    xchdir(cwd);
+    tdlen = strlen(todir);
+
+    uid = owner ? touid(owner) : -1;
+    gid = group ? togid(group) : -1;
+
+    while (--argc > 0) {
+        name = *argv++;
+        len = strlen(name);
+        base = xbasename(name);
+        bnlen = strlen(base);
+        toname = (char*)xmalloc(tdlen + 1 + bnlen + 1);
+        sprintf(toname, "%s/%s", todir, base);
+        exists = (lstat(toname, &tosb) == 0);
+
+        if (dodir) {
+            /* -d means create a directory, always */
+            if (exists && !S_ISDIR(tosb.st_mode)) {
+                (void) unlink(toname);
+                exists = 0;
+            }
+            if (!exists && mkdir(toname, mode) < 0) {
+                fail("cannot make directory %s", toname);
+            }
+            if ((owner || group) && chown(toname, uid, gid) < 0) {
+                fail("cannot change owner of %s", toname);
+            }
+        } else if (dolink) {
+            if (*name == '/') {
+                /* source is absolute pathname, link to it directly */
+                linkname = 0;
+            } else {
+                if (linkprefix) {
+                    /* -L implies -l and prefixes names with a $cwd arg. */
+                    len += lplen + 1;
+                    linkname = (char*)xmalloc(len + 1);
+                    sprintf(linkname, "%s/%s", linkprefix, name);
+                } else if (dorelsymlink) {
+                    /* Symlink the relative path from todir to source name. */
+                    linkname = (char*)xmalloc(PATH_MAX);
+
+                    if (*todir == '/') {
+                        /* todir is absolute: skip over common prefix. */
+                        lplen = relatepaths(todir, cwd, linkname);
+                        strcpy(linkname + lplen, name);
+                    } else {
+                        /* todir is named by a relative path: reverse it. */
+                        reversepath(todir, name, len, linkname);
+                        xchdir(cwd);
+                    }
+
+                    len = strlen(linkname);
+                }
+                name = linkname;
+            }
+
+            /* Check for a pre-existing symlink with identical content. */
+            if (exists &&
+                (!S_ISLNK(tosb.st_mode) ||
+                 readlink(toname, buf, sizeof buf) != len ||
+                 strncmp(buf, name, len) != 0)) {
+                (void) (S_ISDIR(tosb.st_mode) ? rmdir : unlink)(toname);
+                exists = 0;
+            }
+            if (!exists && symlink(name, toname) < 0) {
+                fail("cannot make symbolic link %s", toname);
+            }
+#ifdef HAVE_LCHOWN
+            if ((owner || group) && lchown(toname, uid, gid) < 0) {
+                fail("cannot change owner of %s", toname);
+            }
+#endif
+
+            if (linkname) {
+                free(linkname);
+                linkname = 0;
+            }
+        } else {
+            /* Copy from name to toname, which might be the same file. */
+            fromfd = open(name, O_RDONLY);
+            if (fromfd < 0 || fstat(fromfd, &sb) < 0) {
+                fail("cannot access %s", name);
+            }
+            if (exists && (!S_ISREG(tosb.st_mode) || access(toname, W_OK) < 0)) {
+                (void) (S_ISDIR(tosb.st_mode) ? rmdir : unlink)(toname);
+            }
+            tofd = open(toname, O_CREAT | O_WRONLY, 0666);
+            if (tofd < 0) {
+                fail("cannot create %s", toname);
+            }
+
+            bp = buf;
+            while ((cc = read(fromfd, bp, sizeof buf)) > 0) {
+                while ((wc = write(tofd, bp, cc)) > 0) {
+                    if ((cc -= wc) == 0) {
+                        break;
+                    }
+                    bp += wc;
+                }
+                if (wc < 0) {
+                    fail("cannot write to %s", toname);
+                }
+            }
+            if (cc < 0) {
+                fail("cannot read from %s", name);
+            }
+
+            if (ftruncate(tofd, sb.st_size) < 0) {
+                fail("cannot truncate %s", toname);
+            }
+            if (dotimes) {
+                utb.actime = sb.st_atime;
+                utb.modtime = sb.st_mtime;
+                if (utime(toname, &utb) < 0) {
+                    fail("cannot set times of %s", toname);
+                }
+            }
+#ifdef HAVE_FCHMOD
+            if (fchmod(tofd, mode) < 0)
+#else
+            if (chmod(toname, mode) < 0)
+#endif
+                fail("cannot change mode of %s", toname);
+            if ((owner || group) && fchown(tofd, uid, gid) < 0) {
+                fail("cannot change owner of %s", toname);
+            }
+
+            /* Must check for delayed (NFS) write errors on close. */
+            if (close(tofd) < 0) {
+                fail("cannot write to %s", toname);
+            }
+            close(fromfd);
+        }
+
+        free(toname);
+    }
+
+    free(cwd);
+    free(todir);
+    return 0;
+}
+
+/*
+** Pathname subroutines.
+**
+** Brendan Eich, 8/29/95
+*/
+
+char *program;
+
+void
+fail(char *format, ...)
+{
+    int error;
+    va_list ap;
+
+#ifdef USE_REENTRANT_LIBC
+    R_STRERROR_INIT_R();
+#endif
+
+    error = errno;
+    fprintf(stderr, "%s: ", program);
+    va_start(ap, format);
+    vfprintf(stderr, format, ap);
+    va_end(ap);
+    if (error)
+
+#ifdef USE_REENTRANT_LIBC
+        R_STRERROR_R(errno);
+    fprintf(stderr, ": %s", r_strerror_r);
+#else
+        fprintf(stderr, ": %s", strerror(errno));
+#endif
+
+    putc('\n', stderr);
+    exit(1);
+}
+
+char *
+getcomponent(char *path, char *name)
+{
+    if (*path == '\0') {
+        return 0;
+    }
+    if (*path == '/') {
+        *name++ = '/';
+    } else {
+        do {
+            *name++ = *path++;
+        } while (*path != '/' && *path != '\0');
+    }
+    *name = '\0';
+    while (*path == '/') {
+        path++;
+    }
+    return path;
+}
+
+#ifdef UNIXWARE_READDIR_BUFFER_TOO_SMALL
+/* Sigh.  The static buffer in Unixware's readdir is too small. */
+struct dirent * readdir(DIR *d)
+{
+    static struct dirent *buf = NULL;
+#define MAX_PATH_LEN 1024
+
+
+    if(buf == NULL)
+        buf = (struct dirent *) malloc(sizeof(struct dirent) + MAX_PATH_LEN)
+              ;
+    return(readdir_r(d, buf));
+}
+#endif
+
+char *
+ino2name(ino_t ino, char *dir)
+{
+    DIR *dp;
+    struct dirent *ep;
+    char *name;
+
+    dp = opendir("..");
+    if (!dp) {
+        fail("cannot read parent directory");
+    }
+    for (;;) {
+        if (!(ep = readdir(dp))) {
+            fail("cannot find current directory");
+        }
+        if (ep->d_ino == ino) {
+            break;
+        }
+    }
+    name = xstrdup(ep->d_name);
+    closedir(dp);
+    return name;
+}
+
+void *
+xmalloc(size_t size)
+{
+    void *p = malloc(size);
+    if (!p) {
+        fail("cannot allocate %u bytes", size);
+    }
+    return p;
+}
+
+char *
+xstrdup(char *s)
+{
+    return strcpy((char*)xmalloc(strlen(s) + 1), s);
+}
+
+char *
+xbasename(char *path)
+{
+    char *cp;
+
+    while ((cp = strrchr(path, '/')) && cp[1] == '\0') {
+        *cp = '\0';
+    }
+    if (!cp) {
+        return path;
+    }
+    return cp + 1;
+}
+
+void
+xchdir(char *dir)
+{
+    if (chdir(dir) < 0) {
+        fail("cannot change directory to %s", dir);
+    }
+}
+
+int
+relatepaths(char *from, char *to, char *outpath)
+{
+    char *cp, *cp2;
+    int len;
+    char buf[NAME_MAX];
+
+    assert(*from == '/' && *to == '/');
+    for (cp = to, cp2 = from; *cp == *cp2; cp++, cp2++)
+        if (*cp == '\0') {
+            break;
+        }
+    while (cp[-1] != '/') {
+        cp--, cp2--;
+    }
+    if (cp - 1 == to) {
+        /* closest common ancestor is /, so use full pathname */
+        len = strlen(strcpy(outpath, to));
+        if (outpath[len] != '/') {
+            outpath[len++] = '/';
+            outpath[len] = '\0';
+        }
+    } else {
+        len = 0;
+        while ((cp2 = getcomponent(cp2, buf)) != 0) {
+            strcpy(outpath + len, "../");
+            len += 3;
+        }
+        while ((cp = getcomponent(cp, buf)) != 0) {
+            sprintf(outpath + len, "%s/", buf);
+            len += strlen(outpath + len);
+        }
+    }
+    return len;
+}
+
+void
+reversepath(char *inpath, char *name, int len, char *outpath)
+{
+    char *cp, *cp2;
+    char buf[NAME_MAX];
+    struct stat sb;
+
+    cp = strcpy(outpath + PATH_MAX - (len + 1), name);
+    cp2 = inpath;
+    while ((cp2 = getcomponent(cp2, buf)) != 0) {
+        if (strcmp(buf, ".") == 0) {
+            continue;
+        }
+        if (strcmp(buf, "..") == 0) {
+            if (stat(".", &sb) < 0) {
+                fail("cannot stat current directory");
+            }
+            name = ino2name(sb.st_ino, "..");
+            len = strlen(name);
+            cp -= len + 1;
+            strcpy(cp, name);
+            cp[len] = '/';
+            free(name);
+            xchdir("..");
+        } else {
+            cp -= 3;
+            memcpy(cp, "../", 3);
+            xchdir(buf);
+        }
+    }
+    strcpy(outpath, cp);
+}
diff --git a/nsprpub/config/nspr-config.in b/nsprpub/config/nspr-config.in
new file mode 100755
index 0000000000..2cb62a0f98
--- /dev/null
+++ b/nsprpub/config/nspr-config.in
@@ -0,0 +1,147 @@
+#!/bin/sh
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+
+prefix=@prefix@
+
+major_version=@MOD_MAJOR_VERSION@
+minor_version=@MOD_MINOR_VERSION@
+patch_version=@MOD_PATCH_VERSION@
+
+usage()
+{
+	cat <<EOF
+Usage: nspr-config [OPTIONS] [LIBRARIES]
+Options:
+	[--prefix[=DIR]]
+	[--exec-prefix[=DIR]]
+	[--includedir[=DIR]]
+	[--libdir[=DIR]]
+	[--version]
+	[--libs]
+	[--cflags]
+Libraries:
+	nspr
+	plc
+	plds
+EOF
+	exit $1
+}
+
+if test $# -eq 0; then
+	usage 1 1>&2
+fi
+
+lib_nspr=yes
+lib_plc=yes
+lib_plds=yes
+
+while test $# -gt 0; do
+  case "$1" in
+  -*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
+  *) optarg= ;;
+  esac
+
+  case $1 in
+    --prefix=*)
+      prefix=$optarg
+      ;;
+    --prefix)
+      echo_prefix=yes
+      ;;
+    --exec-prefix=*)
+      exec_prefix=$optarg
+      ;;
+    --exec-prefix)
+      echo_exec_prefix=yes
+      ;;
+    --includedir=*)
+      includedir=$optarg
+      ;;
+    --includedir)
+      echo_includedir=yes
+      ;;
+    --libdir=*)
+      libdir=$optarg
+      ;;
+    --libdir)
+      echo_libdir=yes
+      ;;
+    --version)
+      echo ${major_version}.${minor_version}.${patch_version}
+      ;;
+    --cflags)
+      echo_cflags=yes
+      ;;
+    --libs)
+      echo_libs=yes
+      ;;
+    nspr)
+      lib_nspr=yes
+      ;;
+    plc)
+      lib_plc=yes
+      ;;
+    plds)
+      lib_plds=yes
+      ;;
+    *)
+      usage 1 1>&2
+      ;;
+  esac
+  shift
+done
+
+# Set variables that may be dependent upon other variables
+if test -z "$exec_prefix"; then
+    exec_prefix=@exec_prefix@
+fi
+if test -z "$includedir"; then
+    includedir=@includedir@
+fi
+if test -z "$libdir"; then
+    libdir=@libdir@
+fi
+
+if test "$echo_prefix" = "yes"; then
+    echo $prefix
+fi
+
+if test "$echo_exec_prefix" = "yes"; then
+    echo $exec_prefix
+fi
+
+if test "$echo_includedir" = "yes"; then
+    echo $includedir
+fi
+
+if test "$echo_libdir" = "yes"; then
+    echo $libdir
+fi
+
+if test "$echo_cflags" = "yes"; then
+    echo -I$includedir
+fi
+
+if test "$echo_libs" = "yes"; then
+      libdirs=-L$libdir
+      if test -n "$lib_plds"; then
+	libdirs="$libdirs -lplds${major_version}"
+      fi
+      if test -n "$lib_plc"; then
+	libdirs="$libdirs -lplc${major_version}"
+      fi
+      if test -n "$lib_nspr"; then
+	libdirs="$libdirs -lnspr${major_version}"
+      fi
+      os_ldflags="@LDFLAGS@"
+      for i in $os_ldflags ; do
+	if echo $i | grep \^-L >/dev/null; then
+	  libdirs="$libdirs $i"
+        fi
+      done
+      echo $libdirs @OS_LIBS@
+fi      
+
diff --git a/nsprpub/config/nspr.m4 b/nsprpub/config/nspr.m4
new file mode 100644
index 0000000000..d21df69783
--- /dev/null
+++ b/nsprpub/config/nspr.m4
@@ -0,0 +1,82 @@
+# -*- tab-width: 4; -*-
+# Configure paths for NSPR
+# Public domain - Chris Seawood <cls@seawood.org> 2001-04-05
+# Based upon gtk.m4 (also PD) by Owen Taylor
+
+dnl AM_PATH_NSPR([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
+dnl Test for NSPR, and define NSPR_CFLAGS and NSPR_LIBS
+AC_DEFUN([AM_PATH_NSPR],
+[dnl
+
+AC_ARG_WITH(nspr-prefix,
+	[  --with-nspr-prefix=PFX  Prefix where NSPR is installed],
+	nspr_config_prefix="$withval",
+	nspr_config_prefix="")
+
+AC_ARG_WITH(nspr-exec-prefix,
+	[  --with-nspr-exec-prefix=PFX
+                          Exec prefix where NSPR is installed],
+	nspr_config_exec_prefix="$withval",
+	nspr_config_exec_prefix="")
+
+	if test -n "$nspr_config_exec_prefix"; then
+		nspr_config_args="$nspr_config_args --exec-prefix=$nspr_config_exec_prefix"
+		if test -z "$NSPR_CONFIG"; then
+			NSPR_CONFIG=$nspr_config_exec_prefix/bin/nspr-config
+		fi
+	fi
+	if test -n "$nspr_config_prefix"; then
+		nspr_config_args="$nspr_config_args --prefix=$nspr_config_prefix"
+		if test -z "$NSPR_CONFIG"; then
+			NSPR_CONFIG=$nspr_config_prefix/bin/nspr-config
+		fi
+	fi
+
+	unset ac_cv_path_NSPR_CONFIG
+	AC_PATH_PROG(NSPR_CONFIG, nspr-config, no)
+	min_nspr_version=ifelse([$1], ,4.0.0,$1)
+	AC_MSG_CHECKING(for NSPR - version >= $min_nspr_version)
+
+	no_nspr=""
+	if test "$NSPR_CONFIG" = "no"; then
+		no_nspr="yes"
+	else
+		NSPR_CFLAGS=`$NSPR_CONFIG $nspr_config_args --cflags`
+		NSPR_LIBS=`$NSPR_CONFIG $nspr_config_args --libs`
+
+		nspr_config_major_version=`$NSPR_CONFIG $nspr_config_args --version | \
+			sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
+		nspr_config_minor_version=`$NSPR_CONFIG $nspr_config_args --version | \
+			sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
+		nspr_config_micro_version=`$NSPR_CONFIG $nspr_config_args --version | \
+			sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
+		min_nspr_major_version=`echo $min_nspr_version | \
+			sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
+		min_nspr_minor_version=`echo $min_nspr_version | \
+			sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
+		min_nspr_micro_version=`echo $min_nspr_version | \
+			sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
+		if test "$nspr_config_major_version" -ne "$min_nspr_major_version"; then
+			no_nspr="yes"
+		elif test "$nspr_config_major_version" -eq "$min_nspr_major_version" &&
+		     test "$nspr_config_minor_version" -lt "$min_nspr_minor_version"; then
+			no_nspr="yes"
+		elif test "$nspr_config_major_version" -eq "$min_nspr_major_version" &&
+		     test "$nspr_config_minor_version" -eq "$min_nspr_minor_version" &&
+		     test "$nspr_config_micro_version" -lt "$min_nspr_micro_version"; then
+			no_nspr="yes"
+		fi
+	fi
+
+	if test -z "$no_nspr"; then
+		AC_MSG_RESULT(yes)
+		ifelse([$2], , :, [$2])     
+	else
+		AC_MSG_RESULT(no)
+	fi
+
+
+	AC_SUBST(NSPR_CFLAGS)
+	AC_SUBST(NSPR_LIBS)
+
+])
diff --git a/nsprpub/config/nspr.pc.in b/nsprpub/config/nspr.pc.in
new file mode 100644
index 0000000000..86300a0d57
--- /dev/null
+++ b/nsprpub/config/nspr.pc.in
@@ -0,0 +1,10 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: NSPR
+Description: The Netscape Portable Runtime
+Version: @MOD_MAJOR_VERSION@.@MOD_MINOR_VERSION@.@MOD_PATCH_VERSION@
+Libs: -L@libdir@ -lplds@MOD_MAJOR_VERSION@ -lplc@MOD_MAJOR_VERSION@ -lnspr@MOD_MAJOR_VERSION@
+Cflags: -I@includedir@
diff --git a/nsprpub/config/nsprincl.mk.in b/nsprpub/config/nsprincl.mk.in
new file mode 100644
index 0000000000..108ed34d12
--- /dev/null
+++ b/nsprpub/config/nsprincl.mk.in
@@ -0,0 +1,9 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# Include in Makefiles to define NSPR variables
+
+NSPR_VERSION    = @NSPR_VERSION@
+NSPR_LIB        = -lnspr@NSPR_VERSION@
+NSPR_EXTRA_LIBS = @EXTRA_LIBS@
diff --git a/nsprpub/config/nsprincl.sh.in b/nsprpub/config/nsprincl.sh.in
new file mode 100644
index 0000000000..8e7a427359
--- /dev/null
+++ b/nsprpub/config/nsprincl.sh.in
@@ -0,0 +1,9 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+# Include in shell scripts to define NSPR variables
+
+NSPR_VERSION=@NSPR_VERSION@
+NSPR_LIB=-lnspr$NSPR_VERSION
+NSPR_EXTRA_LIBS="@EXTRA_LIBS@"
diff --git a/nsprpub/config/pathsub.h b/nsprpub/config/pathsub.h
new file mode 100644
index 0000000000..98b6c11242
--- /dev/null
+++ b/nsprpub/config/pathsub.h
@@ -0,0 +1,42 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef pathsub_h___
+#define pathsub_h___
+/*
+** Pathname subroutines.
+**
+** Brendan Eich, 8/29/95
+*/
+#include <limits.h>
+#include <sys/types.h>
+
+#ifndef PATH_MAX
+#define PATH_MAX 1024
+#endif
+
+/*
+ * Just prevent stupidity
+ */
+#undef NAME_MAX
+#define NAME_MAX 256
+
+extern char *program;
+
+extern void fail(char *format, ...);
+extern char *getcomponent(char *path, char *name);
+extern char *ino2name(ino_t ino, char *dir);
+extern void *xmalloc(size_t size);
+extern char *xstrdup(char *s);
+extern char *xbasename(char *path);
+extern void xchdir(char *dir);
+
+/* Relate absolute pathnames from and to returning the result in outpath. */
+extern int relatepaths(char *from, char *to, char *outpath);
+
+/* XXX changes current working directory -- caveat emptor */
+extern void reversepath(char *inpath, char *name, int len, char *outpath);
+
+#endif /* pathsub_h___ */
diff --git a/nsprpub/config/prdepend.h b/nsprpub/config/prdepend.h
new file mode 100644
index 0000000000..6c66b37ca0
--- /dev/null
+++ b/nsprpub/config/prdepend.h
@@ -0,0 +1,13 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * A dummy header file that is a dependency for all the object files.
+ * Used to force a full recompilation of NSPR in Mozilla's Tinderbox
+ * depend builds.  See comments in rules.mk.
+ */
+
+#error "Do not include this header file."
+
diff --git a/nsprpub/config/rules.mk b/nsprpub/config/rules.mk
new file mode 100644
index 0000000000..84dff56179
--- /dev/null
+++ b/nsprpub/config/rules.mk
@@ -0,0 +1,530 @@
+#! gmake
+# 
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+################################################################################
+# We used to have a 4 pass build process.  Now we do everything in one pass.
+#
+# export - Create generated headers and stubs. Publish public headers to
+#          dist/<arch>/include.
+#          Create libraries. Publish libraries to dist/<arch>/lib.
+#          Create programs. 
+#
+# libs - obsolete.  Now a synonym of "export".
+#
+# all - the default makefile target.  Now a synonym of "export".
+#
+# install - Install headers, libraries, and programs on the system.
+#
+# Parameters to this makefile (set these before including):
+#
+# a)
+#	TARGETS	-- the target to create 
+#			(defaults to $LIBRARY $PROGRAM)
+# b)
+#	DIRS	-- subdirectories for make to recurse on
+#			(the 'all' rule builds $TARGETS $DIRS)
+# c)
+#	CSRCS   -- .c files to compile
+#			(used to define $OBJS)
+# d)
+#	PROGRAM	-- the target program name to create from $OBJS
+#			($OBJDIR automatically prepended to it)
+# e)
+#	LIBRARY	-- the target library name to create from $OBJS
+#			($OBJDIR automatically prepended to it)
+#
+################################################################################
+
+ifndef topsrcdir
+topsrcdir=$(MOD_DEPTH)
+endif
+
+ifndef srcdir
+srcdir=.
+endif
+
+ifndef NSPR_CONFIG_MK
+include $(topsrcdir)/config/config.mk
+endif
+
+ifdef USE_AUTOCONF
+ifdef CROSS_COMPILE
+ifdef INTERNAL_TOOLS
+CC=$(HOST_CC)
+CCC=$(HOST_CXX)
+CFLAGS=$(HOST_CFLAGS)
+CXXFLAGS=$(HOST_CXXFLAGS)
+LDFLAGS=$(HOST_LDFLAGS)
+endif
+endif
+endif
+
+#
+# This makefile contains rules for building the following kinds of
+# libraries:
+# - LIBRARY: a static (archival) library
+# - SHARED_LIBRARY: a shared (dynamic link) library
+# - IMPORT_LIBRARY: an import library, used only on Windows and OS/2
+#
+# The names of these libraries can be generated by simply specifying
+# LIBRARY_NAME and LIBRARY_VERSION.
+#
+
+ifdef LIBRARY_NAME
+ifeq (,$(filter-out WINNT WINCE OS2,$(OS_ARCH)))
+
+#
+# Win95 and OS/2 require library names conforming to the 8.3 rule.
+# other platforms do not.
+#
+ifeq (,$(filter-out WIN95 WINCE WINMO OS2,$(OS_TARGET)))
+SHARED_LIBRARY	= $(OBJDIR)/$(LIBRARY_NAME)$(LIBRARY_VERSION).$(DLL_SUFFIX)
+SHARED_LIB_PDB	= $(OBJDIR)/$(LIBRARY_NAME)$(LIBRARY_VERSION).pdb
+ifdef MSC_VER
+LIBRARY         = $(OBJDIR)/$(LIBRARY_NAME)$(LIBRARY_VERSION)_s.$(LIB_SUFFIX)
+IMPORT_LIBRARY  = $(OBJDIR)/$(LIBRARY_NAME)$(LIBRARY_VERSION).$(LIB_SUFFIX)
+else
+LIBRARY         = $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION)_s.$(LIB_SUFFIX)
+IMPORT_LIBRARY  = $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION).$(LIB_SUFFIX)
+endif
+else
+SHARED_LIBRARY	= $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION).$(DLL_SUFFIX)
+SHARED_LIB_PDB	= $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION).pdb
+LIBRARY         = $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION)_s.$(LIB_SUFFIX)
+IMPORT_LIBRARY  = $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION).$(LIB_SUFFIX)
+endif
+
+else
+
+LIBRARY		= $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION).$(LIB_SUFFIX)
+ifeq ($(OS_ARCH)$(OS_RELEASE), AIX4.1)
+SHARED_LIBRARY	= $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION)_shr.a
+else
+ifdef MKSHLIB
+SHARED_LIBRARY	= $(OBJDIR)/lib$(LIBRARY_NAME)$(LIBRARY_VERSION).$(DLL_SUFFIX)
+endif
+endif
+
+endif
+endif
+
+ifndef TARGETS
+ifeq (,$(filter-out WINNT WINCE OS2,$(OS_ARCH)))
+TARGETS		= $(LIBRARY) $(SHARED_LIBRARY) $(IMPORT_LIBRARY)
+ifdef MOZ_DEBUG_SYMBOLS
+ifdef MSC_VER
+ifneq (,$(filter-out 1100 1200,$(MSC_VER)))
+TARGETS		+= $(SHARED_LIB_PDB)
+endif
+endif
+endif
+else
+TARGETS		= $(LIBRARY) $(SHARED_LIBRARY)
+endif
+endif
+
+#
+# OBJS is the list of object files.  It can be constructed by
+# specifying CSRCS (list of C source files) and ASFILES (list
+# of assembly language source files).
+#
+
+ifndef OBJS
+OBJS		= $(addprefix $(OBJDIR)/,$(CSRCS:.c=.$(OBJ_SUFFIX))) \
+		  $(addprefix $(OBJDIR)/,$(ASFILES:.$(ASM_SUFFIX)=.$(OBJ_SUFFIX)))
+endif
+
+ALL_TRASH		= $(TARGETS) $(OBJS) $(RES) $(filter-out . .., $(OBJDIR)) LOGS TAGS $(GARBAGE) \
+			  $(NOSUCHFILE) \
+			  $(OBJS:.$(OBJ_SUFFIX)=.i_o) \
+			  so_locations
+
+ifndef RELEASE_LIBS_DEST
+RELEASE_LIBS_DEST	= $(RELEASE_LIB_DIR)
+endif
+
+define MAKE_IN_DIR
+	$(MAKE) -C $(dir) $@
+
+endef # do not remove the blank line!
+
+ifdef DIRS
+LOOP_OVER_DIRS = $(foreach dir,$(DIRS),$(MAKE_IN_DIR))
+endif
+
+################################################################################
+
+all:: export
+
+export::
+	+$(LOOP_OVER_DIRS)
+
+libs:: export
+
+clean::
+	rm -rf $(OBJS) $(RES) so_locations $(NOSUCHFILE) $(GARBAGE)
+	+$(LOOP_OVER_DIRS)
+
+clobber::
+	rm -rf $(OBJS) $(RES) $(TARGETS) $(filter-out . ..,$(OBJDIR)) $(GARBAGE) so_locations $(NOSUCHFILE)
+	+$(LOOP_OVER_DIRS)
+
+realclean clobber_all::
+	rm -rf $(wildcard *.OBJ *.OBJD) dist $(ALL_TRASH)
+	+$(LOOP_OVER_DIRS)
+
+distclean::
+	rm -rf $(wildcard *.OBJ *.OBJD) dist $(ALL_TRASH) $(DIST_GARBAGE)
+	+$(LOOP_OVER_DIRS)
+
+install:: $(RELEASE_BINS) $(RELEASE_HEADERS) $(RELEASE_LIBS)
+ifdef RELEASE_BINS
+	$(NSINSTALL) -t -m 0755 $(RELEASE_BINS) $(DESTDIR)$(bindir)
+endif
+ifdef RELEASE_HEADERS
+	$(NSINSTALL) -t -m 0644 $(RELEASE_HEADERS) $(DESTDIR)$(includedir)/$(include_subdir)
+endif
+ifdef RELEASE_LIBS
+	$(NSINSTALL) -t -m 0755 $(RELEASE_LIBS) $(DESTDIR)$(libdir)/$(lib_subdir)
+endif
+	+$(LOOP_OVER_DIRS)
+
+release:: export
+ifdef RELEASE_BINS
+	@echo "Copying executable programs and scripts to release directory"
+	@if test -z "$(BUILD_NUMBER)"; then \
+		echo "BUILD_NUMBER must be defined"; \
+		false; \
+	else \
+		true; \
+	fi
+	@if test ! -d $(RELEASE_BIN_DIR); then \
+		rm -rf $(RELEASE_BIN_DIR); \
+		$(NSINSTALL) -D $(RELEASE_BIN_DIR);\
+	else \
+		true; \
+	fi
+	cp $(RELEASE_BINS) $(RELEASE_BIN_DIR)
+endif
+ifdef RELEASE_LIBS
+	@echo "Copying libraries to release directory"
+	@if test -z "$(BUILD_NUMBER)"; then \
+		echo "BUILD_NUMBER must be defined"; \
+		false; \
+	else \
+		true; \
+	fi
+	@if test ! -d $(RELEASE_LIBS_DEST); then \
+		rm -rf $(RELEASE_LIBS_DEST); \
+		$(NSINSTALL) -D $(RELEASE_LIBS_DEST);\
+	else \
+		true; \
+	fi
+	cp $(RELEASE_LIBS) $(RELEASE_LIBS_DEST)
+endif
+ifdef RELEASE_HEADERS
+	@echo "Copying header files to release directory"
+	@if test -z "$(BUILD_NUMBER)"; then \
+		echo "BUILD_NUMBER must be defined"; \
+		false; \
+	else \
+		true; \
+	fi
+	@if test ! -d $(RELEASE_HEADERS_DEST); then \
+		rm -rf $(RELEASE_HEADERS_DEST); \
+		$(NSINSTALL) -D $(RELEASE_HEADERS_DEST);\
+	else \
+		true; \
+	fi
+	cp $(RELEASE_HEADERS) $(RELEASE_HEADERS_DEST)
+endif
+	+$(LOOP_OVER_DIRS)
+
+alltags:
+	rm -f TAGS tags
+	find . -name dist -prune -o \( -name '*.[hc]' -o -name '*.cp' -o -name '*.cpp' \) -print | xargs etags -a
+	find . -name dist -prune -o \( -name '*.[hc]' -o -name '*.cp' -o -name '*.cpp' \) -print | xargs ctags -a
+
+$(NFSPWD):
+	cd $(@D); $(MAKE) $(@F)
+
+$(PROGRAM): $(OBJS)
+	@$(MAKE_OBJDIR)
+ifeq ($(NS_USE_GCC)_$(OS_ARCH),_WINNT)
+ifdef MOZ_PROFILE_USE
+# In the second pass, we need to merge the pgc files into the pgd file.
+# The compiler would do this for us automatically if they were in the right
+# place, but they're in dist/bin.
+	python $(topsrcdir)/build/win32/pgomerge.py \
+		$(notdir $(PROGRAM:.exe=)) $(DIST)/bin
+endif	# MOZ_PROFILE_USE
+	$(CC) $(OBJS) -Fe$@ -link $(LDFLAGS) $(OS_LIBS) $(EXTRA_LIBS)
+ifdef MT
+	@if test -f $@.manifest; then \
+		$(MT) -NOLOGO -MANIFEST $@.manifest -OUTPUTRESOURCE:$@\;1; \
+		rm -f $@.manifest; \
+	fi
+endif	# MSVC with manifest tool
+ifdef MOZ_PROFILE_GENERATE
+# touch it a few seconds into the future to work around FAT's
+# 2-second granularity
+	touch -t `date +%Y%m%d%H%M.%S -d "now+5seconds"` pgo.relink
+endif	# MOZ_PROFILE_GENERATE
+else	# WINNT && !GCC
+	$(CC) -o $@ $(CFLAGS) $(OBJS) $(LDFLAGS) $(WRAP_LDFLAGS)
+endif	# WINNT && !GCC
+ifdef ENABLE_STRIP
+	$(STRIP) $@
+endif
+
+# Same as OBJS, but without any file that matches p*vrsion.o, since these
+# collide for static libraries, and are not useful for that case anyway.
+STATICLIB_OBJS = $(filter-out $(OBJDIR)/p%vrsion.$(OBJ_SUFFIX),$(OBJS))
+$(LIBRARY): $(STATICLIB_OBJS)
+	@$(MAKE_OBJDIR)
+	rm -f $@
+	$(AR) $(AR_FLAGS) $(STATICLIB_OBJS) $(AR_EXTRA_ARGS)
+	$(RANLIB) $@
+
+ifeq ($(OS_TARGET), OS2)
+$(IMPORT_LIBRARY): $(MAPFILE)
+	rm -f $@
+	$(IMPLIB) $@ $(MAPFILE)
+else
+ifeq (,$(filter-out WIN95 WINCE WINMO,$(OS_TARGET)))
+# PDBs and import libraries need to depend on the shared library to
+# order dependencies properly.
+$(IMPORT_LIBRARY): $(SHARED_LIBRARY)
+$(SHARED_LIB_PDB): $(SHARED_LIBRARY)
+endif
+endif
+
+$(SHARED_LIBRARY): $(OBJS) $(RES) $(MAPFILE)
+	@$(MAKE_OBJDIR)
+	rm -f $@
+ifeq ($(OS_ARCH)$(OS_RELEASE), AIX4.1)
+	echo "#!" > $(OBJDIR)/lib$(LIBRARY_NAME)_syms
+	nm -B -C -g $(OBJS) \
+		| awk '/ [T,D] / {print $$3}' \
+		| sed -e 's/^\.//' \
+		| sort -u >> $(OBJDIR)/lib$(LIBRARY_NAME)_syms
+	$(LD) $(XCFLAGS) -o $@ $(OBJS) -bE:$(OBJDIR)/lib$(LIBRARY_NAME)_syms \
+		-bM:SRE -bnoentry $(OS_LIBS) $(EXTRA_LIBS)
+else	# AIX 4.1
+ifeq ($(NS_USE_GCC)_$(OS_ARCH),_WINNT)
+ifdef MOZ_PROFILE_USE
+	python $(topsrcdir)/build/win32/pgomerge.py \
+		$(notdir $(SHARED_LIBRARY:.$(DLL_SUFFIX)=)) $(DIST)/bin
+endif	# MOZ_PROFILE_USE
+	$(LINK_DLL) -MAP $(DLLBASE) $(DLL_LIBS) $(EXTRA_LIBS) $(OBJS) $(RES)
+ifdef MT
+	@if test -f $@.manifest; then \
+		$(MT) -NOLOGO -MANIFEST $@.manifest -OUTPUTRESOURCE:$@\;2; \
+		rm -f $@.manifest; \
+	fi
+endif	# MSVC with manifest tool
+ifdef MOZ_PROFILE_GENERATE
+	touch -t `date +%Y%m%d%H%M.%S -d "now+5seconds"` pgo.relink
+endif	# MOZ_PROFILE_GENERATE
+else	# WINNT && !GCC
+	$(MKSHLIB) $(OBJS) $(RES) $(LDFLAGS) $(WRAP_LDFLAGS) $(EXTRA_LIBS)
+endif	# WINNT && !GCC
+endif	# AIX 4.1
+ifdef ENABLE_STRIP
+	$(STRIP) $@
+endif
+
+################################################################################
+
+ifdef MOZ_PROFILE_USE
+ifeq ($(NS_USE_GCC)_$(OS_ARCH),_WINNT)
+# When building with PGO, we have to make sure to re-link
+# in the MOZ_PROFILE_USE phase if we linked in the
+# MOZ_PROFILE_GENERATE phase. We'll touch this pgo.relink
+# file in the link rule in the GENERATE phase to indicate
+# that we need a relink.
+$(SHARED_LIBRARY): pgo.relink
+
+$(PROGRAM): pgo.relink
+
+endif	# WINNT && !GCC
+endif	# MOZ_PROFILE_USE
+
+ifneq (,$(MOZ_PROFILE_GENERATE)$(MOZ_PROFILE_USE))
+ifdef NS_USE_GCC
+# Force rebuilding libraries and programs in both passes because each
+# pass uses different object files.
+$(PROGRAM) $(SHARED_LIBRARY) $(LIBRARY): FORCE
+.PHONY: FORCE
+endif
+endif
+
+################################################################################
+
+ifdef MOZ_PROFILE_GENERATE
+# Clean up profiling data during PROFILE_GENERATE phase
+export::
+ifeq ($(NS_USE_GCC)_$(OS_ARCH),_WINNT)
+	$(foreach pgd,$(wildcard *.pgd),pgomgr -clear $(pgd);)
+else
+ifdef NS_USE_GCC
+	-$(RM) *.gcda
+endif
+endif
+endif
+
+################################################################################
+
+ifeq ($(OS_ARCH),WINNT)
+$(RES): $(RESNAME)
+	@$(MAKE_OBJDIR)
+# The resource compiler does not understand the -U option.
+ifdef NS_USE_GCC
+	$(RC) $(RCFLAGS) $(filter-out -U%,$(DEFINES)) $(INCLUDES:-I%=--include-dir %) -o $@ $<
+else
+	$(RC) $(RCFLAGS) $(filter-out -U%,$(DEFINES)) $(INCLUDES) -Fo$@ $<
+endif # GCC
+	@echo $(RES) finished
+endif
+
+$(MAPFILE): $(LIBRARY_NAME).def
+	@$(MAKE_OBJDIR)
+ifeq ($(OS_ARCH),SunOS)
+	grep -v ';-' $< | \
+	sed -e 's,;+,,' -e 's; DATA ;;' -e 's,;;,,' -e 's,;.*,;,' > $@
+endif
+ifeq ($(OS_ARCH),OS2)
+	echo LIBRARY $(LIBRARY_NAME)$(LIBRARY_VERSION) INITINSTANCE TERMINSTANCE > $@
+	echo PROTMODE >> $@
+	echo CODE    LOADONCALL MOVEABLE DISCARDABLE >> $@
+	echo DATA    PRELOAD MOVEABLE MULTIPLE NONSHARED >> $@
+	echo EXPORTS >> $@
+	grep -v ';+' $< | grep -v ';-' | \
+	sed -e 's; DATA ;;' -e 's,;;,,' -e 's,;.*,,' -e 's,\([\t ]*\),\1_,' | \
+	awk 'BEGIN {ord=1;} { print($$0 " @" ord " RESIDENTNAME"); ord++;}'	>> $@
+	$(ADD_TO_DEF_FILE)
+endif
+
+#
+# Translate source filenames to absolute paths. This is required for
+# debuggers under Windows and OS/2 to find source files automatically.
+#
+
+ifeq (,$(filter-out AIX OS2,$(OS_ARCH)))
+NEED_ABSOLUTE_PATH = 1
+endif
+
+ifeq ($(NS_USE_GCC)_$(OS_ARCH),_WINNT)
+NEED_ABSOLUTE_PATH = 1
+endif
+
+ifdef NEED_ABSOLUTE_PATH
+# The quotes allow absolute paths to contain spaces.
+pr_abspath = "$(if $(findstring :,$(1)),$(1),$(if $(filter /%,$(1)),$(1),$(CURDIR)/$(1)))"
+endif
+
+$(OBJDIR)/%.$(OBJ_SUFFIX): %.cpp
+	@$(MAKE_OBJDIR)
+ifeq ($(NS_USE_GCC)_$(OS_ARCH),_WINNT)
+	$(CCC) -Fo$@ -c $(CCCFLAGS) $(call pr_abspath,$<)
+else
+ifeq ($(NS_USE_GCC)_$(OS_ARCH),_WINCE)
+	$(CCC) -Fo$@ -c $(CCCFLAGS) $<
+else
+ifdef NEED_ABSOLUTE_PATH
+	$(CCC) -o $@ -c $(CCCFLAGS) $(call pr_abspath,$<)
+else
+	$(CCC) -o $@ -c $(CCCFLAGS) $<
+endif
+endif
+endif
+
+WCCFLAGS1 = $(subst /,\\,$(CFLAGS))
+WCCFLAGS2 = $(subst -I,-i=,$(WCCFLAGS1))
+WCCFLAGS3 = $(subst -D,-d,$(WCCFLAGS2))
+$(OBJDIR)/%.$(OBJ_SUFFIX): %.c
+	@$(MAKE_OBJDIR)
+ifeq ($(NS_USE_GCC)_$(OS_ARCH),_WINNT)
+	$(CC) -Fo$@ -c $(CFLAGS) $(call pr_abspath,$<)
+else
+ifeq ($(NS_USE_GCC)_$(OS_ARCH),_WINCE)
+	$(CC) -Fo$@ -c $(CFLAGS) $<
+else
+ifdef NEED_ABSOLUTE_PATH
+	$(CC) -o $@ -c $(CFLAGS) $(call pr_abspath,$<)
+else
+	$(CC) -o $@ -c $(CFLAGS) $<
+endif
+endif
+endif
+
+
+$(OBJDIR)/%.$(OBJ_SUFFIX): %.s
+	@$(MAKE_OBJDIR)
+	$(AS) -o $@ $(ASFLAGS) -c $<
+
+%.i: %.c
+	$(CC) -C -E $(CFLAGS) $< > $*.i
+
+%: %.pl
+	rm -f $@; cp $< $@; chmod +x $@
+
+#
+# HACK ALERT
+#
+# The only purpose of this rule is to pass Mozilla's Tinderbox depend
+# builds (http://tinderbox.mozilla.org/showbuilds.cgi).  Mozilla's
+# Tinderbox builds NSPR continuously as part of the Mozilla client.
+# Because NSPR's make depend is not implemented, whenever we change
+# an NSPR header file, the depend build does not recompile the NSPR
+# files that depend on the header.
+#
+# This rule makes all the objects depend on a dummy header file.
+# Touch this dummy header file to force the depend build to recompile
+# everything.
+#
+# This rule should be removed when make depend is implemented.
+#
+
+DUMMY_DEPEND_H = $(topsrcdir)/config/prdepend.h
+
+$(filter $(OBJDIR)/%.$(OBJ_SUFFIX),$(OBJS)): $(OBJDIR)/%.$(OBJ_SUFFIX): $(DUMMY_DEPEND_H)
+
+# END OF HACK
+
+################################################################################
+# Special gmake rules.
+################################################################################
+
+#
+# Disallow parallel builds with MSVC < 8 since it can't open the PDB file in
+# parallel.
+#
+ifeq (,$(filter-out 1200 1300 1310,$(MSC_VER)))
+.NOTPARALLEL:
+endif
+
+#
+# Re-define the list of default suffixes, so gmake won't have to churn through
+# hundreds of built-in suffix rules for stuff we don't need.
+#
+.SUFFIXES:
+.SUFFIXES: .a .$(OBJ_SUFFIX) .c .cpp .s .h .i .pl
+
+#
+# Fake targets.  Always run these rules, even if a file/directory with that
+# name already exists.
+#
+.PHONY: all alltags clean export install libs realclean release
+
+#
+# List the target pattern of an implicit rule as a dependency of the
+# special target .PRECIOUS to preserve intermediate files made by
+# implicit rules whose target patterns match that file's name.
+# (See GNU Make documentation, Edition 0.51, May 1996, Sec. 10.4,
+# p. 107.)
+#
+.PRECIOUS: $(OBJDIR)/%.$(OBJ_SUFFIX)
diff --git a/nsprpub/config/system-headers b/nsprpub/config/system-headers
new file mode 100644
index 0000000000..cf0f11498f
--- /dev/null
+++ b/nsprpub/config/system-headers
@@ -0,0 +1,172 @@
+Aliases.h
+arpa/inet.h
+assert.h
+bsd/libc.h
+bsd/syscall.h
+bstring.h
+builtin.h
+c_asm.h
+cf.h
+CFBundle.h
+CFData.h
+CFDictionary.h
+CFString.h
+CFURL.h
+CodeFragments.h
+commdlg.h
+crt_externs.h
+crypt.h
+ctype.h
+descrip.h
+Devices.h
+direct.h
+dirent.h
+dlfcn.h
+dl.h
+DriverServices.h
+dvidef.h
+errno.h
+Errors.h
+Events.h
+fcntl.h
+fibdef.h
+files.h
+Files.h
+float.h
+Folders.h
+Gestalt.h
+getopt.h
+grp.h
+ia64/sys/inline.h
+ifaddrs.h
+image.h
+ints.h
+iodef.h
+io.h
+iostream.h
+kernel/OS.h
+lib$routines.h
+limits.h
+loader.h
+locale.h
+LowMem.h
+MacErrors.h
+machine/builtins.h
+machine/clock.h
+machine/endian.h
+machine/inline.h
+mach/mach_init.h
+mach/mach_host.h
+mach-o/dyld.h
+MacTypes.h
+Math64.h
+math.h
+mbstring.h
+memory.h
+MixedMode.h
+model.h
+mswsock.h
+Multiprocessing.h
+mutex.h
+netdb.h
+net/if.h
+netinet/in.h
+netinet/in_systm.h
+netinet/tcp.h
+OpenTptInternet.h
+OpenTransport.h
+os2.h
+OS.h
+osreldate.h
+OSUtils.h
+poll.h
+PPCToolbox.h
+Processes.h
+process.h
+pthread.h
+pwd.h
+QDOffscreen.h
+Resources.h
+rld_interface.h
+rpc/types.h
+semaphore.h
+setjmp.h
+share.h
+signal.h
+ssdef.h
+starlet.h
+stat.h
+stdarg.h
+stddef.h
+stdio.h
+stdlib.h
+string.h
+stropts.h
+stsdef.h
+support/SupportDefs.h
+support/TLS.h
+synch.h
+sys/atomic_op.h
+syscall.h
+sys/cfgodm.h
+sys/file.h
+sys/filio.h
+sys/immu.h
+sys/ioctl.h
+sys/ipc.h
+sys/ldr.h
+sys/locking.h
+sys/lwp.h
+sys/mman.h
+sys/mpctl.h
+sys/param.h
+sys/pda.h
+sys/poll.h
+sys/prctl.h
+sys/priv.h
+sys/procfs.h
+sys/pstat.h
+sys/regset.h
+sys/resource.h
+sys/sched.h
+sys/select.h
+sys/sem.h
+sys/sendfile.h
+sys/shm.h
+sys/socket.h
+sys/stack.h
+sys/stat.h
+sys/statvfs.h
+sys/syscall.h
+sys/sysctl.h
+sys/sysmp.h
+sys/syssgi.h
+sys/systeminfo.h
+sys/timeb.h
+sys/time.h
+sys/times.h
+sys/types.h
+sys/ucontext.h
+sys/uio.h
+sys/utsname.h
+sys/wait.h
+task.h
+TextUtils.h
+thread.h
+time.h
+Timer.h
+types.h
+Types.h
+ucontext.h
+ucx$inetdef.h
+ulocks.h
+unistd.h
+unix.h
+unixlib.h
+utime.h
+wchar.h
+winbase.h
+win/compobj.h
+windef.h
+windows.h
+winsock.h
diff --git a/nsprpub/configure b/nsprpub/configure
new file mode 100755
index 0000000000..b89064b2c0
--- /dev/null
+++ b/nsprpub/configure
@@ -0,0 +1,9552 @@
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.69.
+#
+#
+# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+#
+#
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+# Use a proper internal environment variable to ensure we don't fall
+  # into an infinite loop, continuously re-executing ourselves.
+  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
+    _as_can_reexec=no; export _as_can_reexec;
+    # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+as_fn_exit 255
+  fi
+  # We don't want this to propagate to other subprocesses.
+          { _as_can_reexec=; unset _as_can_reexec;}
+if test "x$CONFIG_SHELL" = x; then
+  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '\${1+\"\$@\"}'='\"\$@\"'
+  setopt NO_GLOB_SUBST
+else
+  case \`(set -o) 2>/dev/null\` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+"
+  as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
+
+exitcode=0
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+
+else
+  exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1
+test -x / || exit 1"
+  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
+test \$(( 1 + 1 )) = 2 || exit 1"
+  if (eval "$as_required") 2>/dev/null; then :
+  as_have_required=yes
+else
+  as_have_required=no
+fi
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
+
+else
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  as_found=:
+  case $as_dir in #(
+	 /*)
+	   for as_base in sh bash ksh sh5; do
+	     # Try only shells that exist, to save several forks.
+	     as_shell=$as_dir/$as_base
+	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  CONFIG_SHELL=$as_shell as_have_required=yes
+		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+  break 2
+fi
+fi
+	   done;;
+       esac
+  as_found=false
+done
+$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi; }
+IFS=$as_save_IFS
+
+
+      if test "x$CONFIG_SHELL" != x; then :
+  export CONFIG_SHELL
+             # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+  *v*x* | *x*v* ) as_opts=-vx ;;
+  *v* ) as_opts=-v ;;
+  *x* ) as_opts=-x ;;
+  * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
+fi
+
+    if test x$as_have_required = xno; then :
+  $as_echo "$0: This script requires a shell more modern than all"
+  $as_echo "$0: the shells that I found on your system."
+  if test x${ZSH_VERSION+set} = xset ; then
+    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+  else
+    $as_echo "$0: Please tell bug-autoconf@gnu.org about your system,
+$0: including any error possibly output before this
+$0: message. Then install a modern shell, or manually run
+$0: the script under such a shell if you do have one."
+  fi
+  exit 1
+fi
+fi
+fi
+SHELL=${CONFIG_SHELL-/bin/sh}
+export SHELL
+# Unset more variables known to interfere with behavior of common tools.
+CLICOLOR_FORCE= GREP_OPTIONS=
+unset CLICOLOR_FORCE GREP_OPTIONS
+
+## --------------------- ##
+## M4sh Shell Functions. ##
+## --------------------- ##
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+  # already done that, so ensure we don't try to do so again and fall
+  # in an infinite loop.  This has already happened in practice.
+  _as_can_reexec=no; export _as_can_reexec
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+test -n "$DJDIR" || exec 7<&0 </dev/null
+exec 6>&1
+
+# Name of the host.
+# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+#
+# Initializations.
+#
+ac_default_prefix=/usr/local
+ac_clean_files=
+ac_config_libobj_dir=.
+LIBOBJS=
+cross_compiling=no
+subdirs=
+MFLAGS=
+MAKEFLAGS=
+
+# Identity of this package.
+PACKAGE_NAME=
+PACKAGE_TARNAME=
+PACKAGE_VERSION=
+PACKAGE_STRING=
+PACKAGE_BUGREPORT=
+PACKAGE_URL=
+
+ac_unique_file="pr/include/nspr.h"
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include <stdio.h>
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_STRING_H
+# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
+#  include <memory.h>
+# endif
+# include <string.h>
+#endif
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif"
+
+ac_subst_vars='LTLIBOBJS
+LIBOBJS
+MT
+NEXT_ROOT
+MACOS_SDK_DIR
+WRAP_SYSTEM_INCLUDES
+VISIBILITY_FLAGS
+CYGWIN_WRAPPER
+OS_DLLFLAGS
+EXEFLAGS
+DLLFLAGS
+RCFLAGS
+RC
+OPTIMIZER
+NSINSTALL
+RELEASE_OBJDIR_NAME
+OBJDIR_NAME
+OBJDIR
+ULTRASPARC_LIBRARY
+MOZ_OBJFORMAT
+NOSUCHFILE
+AIX_LINK_OPTS
+RESOLVE_LINK_SYMBOLS
+OS_LIBS
+PROFILE_USE_LDFLAGS
+PROFILE_USE_CFLAGS
+PROFILE_GEN_LDFLAGS
+PROFILE_GEN_CFLAGS
+IMPLIB
+FILTER
+ASFLAGS
+AR_FLAGS
+DEFINES
+MACOSX_DEPLOYMENT_TARGET
+OS_TEST
+OS_RELEASE
+OS_ARCH
+OS_TARGET
+DSO_LDOPTS
+DSO_CFLAGS
+MKSHLIB
+WRAP_LDFLAGS
+ASM_SUFFIX
+DLL_SUFFIX
+LIB_SUFFIX
+OBJ_SUFFIX
+CPU_ARCH
+PR_MD_ARCH_DIR
+PR_MD_ASFILES
+PR_MD_CSRCS
+MDCPUCFG_H
+NSPR_MODNAME
+MOD_PATCH_VERSION
+MOD_MINOR_VERSION
+MOD_MAJOR_VERSION
+LIBPLC
+LIBNSPR
+USE_NSPR_THREADS
+USE_USER_PTHREADS
+USE_BTHREADS
+USE_PTHREADS
+ENABLE_STRIP
+OBJECT_MODE
+USE_64
+USE_X32
+USE_N32
+USE_IPV6
+USE_CPLUS
+MOZ_DEBUG_SYMBOLS
+MOZ_DEBUG
+MOZ_OPTIMIZE
+CROSS_COMPILE
+MSC_VER
+GCC_USE_GNU_LD
+GNU_CC
+HOST_LDFLAGS
+HOST_CFLAGS
+MOZILLA_CLIENT
+SHELL_OVERRIDE
+CCACHE
+EGREP
+GREP
+PERL
+CPP
+HOST_CC
+WINDRES
+STRIP
+LD
+AS
+AR
+RANLIB
+ac_ct_CXX
+CXXFLAGS
+CXX
+OBJEXT
+EXEEXT
+ac_ct_CC
+CPPFLAGS
+LDFLAGS
+CFLAGS
+WHOAMI
+dist_libdir
+dist_includedir
+dist_bindir
+dist_prefix
+CC
+target_os
+target_vendor
+target_cpu
+target
+host_os
+host_vendor
+host_cpu
+host
+build_os
+build_vendor
+build_cpu
+build
+target_alias
+host_alias
+build_alias
+LIBS
+ECHO_T
+ECHO_N
+ECHO_C
+DEFS
+mandir
+localedir
+libdir
+psdir
+pdfdir
+dvidir
+htmldir
+infodir
+docdir
+oldincludedir
+includedir
+runstatedir
+localstatedir
+sharedstatedir
+sysconfdir
+datadir
+datarootdir
+libexecdir
+sbindir
+bindir
+program_transform_name
+prefix
+exec_prefix
+PACKAGE_URL
+PACKAGE_BUGREPORT
+PACKAGE_STRING
+PACKAGE_VERSION
+PACKAGE_TARNAME
+PACKAGE_NAME
+PATH_SEPARATOR
+SHELL'
+ac_subst_files=''
+ac_user_opts='
+enable_option_checking
+with_android_ndk
+with_android_toolchain
+with_android_version
+with_android_platform
+with_dist_prefix
+with_dist_bindir
+with_dist_includedir
+with_dist_libdir
+with_mozilla
+enable_optimize
+enable_debug
+enable_debug_symbols
+enable_win32_target
+enable_debug_rtl
+enable_static_rtl
+enable_x32
+enable_64bit
+enable_mdupdate
+enable_cplus
+with_arm_kuser
+with_macos_sdk
+enable_macos_target
+enable_os2_high_mem
+enable_thumb2
+with_thumb
+with_thumb_interwork
+with_arch
+with_fpu
+with_float_abi
+with_soft_float
+with_ccache
+enable_strip
+with_pthreads
+enable_user_pthreads
+enable_nspr_threads
+enable_ipv6
+enable_wrap_malloc
+with_wrap_malloc
+'
+      ac_precious_vars='build_alias
+host_alias
+target_alias
+CC
+CFLAGS
+LDFLAGS
+LIBS
+CPPFLAGS
+CXX
+CXXFLAGS
+CCC
+CPP'
+
+
+# Initialize some variables set by options.
+ac_init_help=
+ac_init_version=false
+ac_unrecognized_opts=
+ac_unrecognized_sep=
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+cache_file=/dev/null
+exec_prefix=NONE
+no_create=
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+verbose=
+x_includes=NONE
+x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
+# (The list follows the same order as the GNU Coding Standards.)
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datarootdir='${prefix}/share'
+datadir='${datarootdir}'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+runstatedir='${localstatedir}/run'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+docdir='${datarootdir}/doc/${PACKAGE}'
+infodir='${datarootdir}/info'
+htmldir='${docdir}'
+dvidir='${docdir}'
+pdfdir='${docdir}'
+psdir='${docdir}'
+libdir='${exec_prefix}/lib'
+localedir='${datarootdir}/locale'
+mandir='${datarootdir}/man'
+
+ac_prev=
+ac_dashdash=
+for ac_option
+do
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval $ac_prev=\$ac_option
+    ac_prev=
+    continue
+  fi
+
+  case $ac_option in
+  *=?*) ac_optarg=`expr "X$ac_option" : '[^=]*=\(.*\)'` ;;
+  *=)   ac_optarg= ;;
+  *)    ac_optarg=yes ;;
+  esac
+
+  # Accept the important Cygnus configure options, so we can diagnose typos.
+
+  case $ac_dashdash$ac_option in
+  --)
+    ac_dashdash=yes ;;
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir=$ac_optarg ;;
+
+  -build | --build | --buil | --bui | --bu)
+    ac_prev=build_alias ;;
+  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+    build_alias=$ac_optarg ;;
+
+  -cache-file | --cache-file | --cache-fil | --cache-fi \
+  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+    ac_prev=cache_file ;;
+  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+    cache_file=$ac_optarg ;;
+
+  --config-cache | -C)
+    cache_file=config.cache ;;
+
+  -datadir | --datadir | --datadi | --datad)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=*)
+    datadir=$ac_optarg ;;
+
+  -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
+  | --dataroo | --dataro | --datar)
+    ac_prev=datarootdir ;;
+  -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
+  | --dataroot=* | --dataroo=* | --dataro=* | --datar=*)
+    datarootdir=$ac_optarg ;;
+
+  -disable-* | --disable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=no ;;
+
+  -docdir | --docdir | --docdi | --doc | --do)
+    ac_prev=docdir ;;
+  -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
+    docdir=$ac_optarg ;;
+
+  -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
+    ac_prev=dvidir ;;
+  -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
+    dvidir=$ac_optarg ;;
+
+  -enable-* | --enable-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid feature name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"enable_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval enable_$ac_useropt=\$ac_optarg ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix=$ac_optarg ;;
+
+  -gas | --gas | --ga | --g)
+    # Obsolete; use --with-gas.
+    with_gas=yes ;;
+
+  -help | --help | --hel | --he | -h)
+    ac_init_help=long ;;
+  -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+    ac_init_help=recursive ;;
+  -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+    ac_init_help=short ;;
+
+  -host | --host | --hos | --ho)
+    ac_prev=host_alias ;;
+  -host=* | --host=* | --hos=* | --ho=*)
+    host_alias=$ac_optarg ;;
+
+  -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
+    ac_prev=htmldir ;;
+  -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
+  | --ht=*)
+    htmldir=$ac_optarg ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir=$ac_optarg ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir=$ac_optarg ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir=$ac_optarg ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir=$ac_optarg ;;
+
+  -localedir | --localedir | --localedi | --localed | --locale)
+    ac_prev=localedir ;;
+  -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
+    localedir=$ac_optarg ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst | --locals)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* | --locals=*)
+    localstatedir=$ac_optarg ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir=$ac_optarg ;;
+
+  -nfp | --nfp | --nf)
+    # Obsolete; use --without-fp.
+    with_fp=no ;;
+
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c | -n)
+    no_create=yes ;;
+
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    no_recursion=yes ;;
+
+  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+  | --oldin | --oldi | --old | --ol | --o)
+    ac_prev=oldincludedir ;;
+  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+    oldincludedir=$ac_optarg ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix=$ac_optarg ;;
+
+  -program-prefix | --program-prefix | --program-prefi | --program-pref \
+  | --program-pre | --program-pr | --program-p)
+    ac_prev=program_prefix ;;
+  -program-prefix=* | --program-prefix=* | --program-prefi=* \
+  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+    program_prefix=$ac_optarg ;;
+
+  -program-suffix | --program-suffix | --program-suffi | --program-suff \
+  | --program-suf | --program-su | --program-s)
+    ac_prev=program_suffix ;;
+  -program-suffix=* | --program-suffix=* | --program-suffi=* \
+  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+    program_suffix=$ac_optarg ;;
+
+  -program-transform-name | --program-transform-name \
+  | --program-transform-nam | --program-transform-na \
+  | --program-transform-n | --program-transform- \
+  | --program-transform | --program-transfor \
+  | --program-transfo | --program-transf \
+  | --program-trans | --program-tran \
+  | --progr-tra | --program-tr | --program-t)
+    ac_prev=program_transform_name ;;
+  -program-transform-name=* | --program-transform-name=* \
+  | --program-transform-nam=* | --program-transform-na=* \
+  | --program-transform-n=* | --program-transform-=* \
+  | --program-transform=* | --program-transfor=* \
+  | --program-transfo=* | --program-transf=* \
+  | --program-trans=* | --program-tran=* \
+  | --progr-tra=* | --program-tr=* | --program-t=*)
+    program_transform_name=$ac_optarg ;;
+
+  -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
+    ac_prev=pdfdir ;;
+  -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
+    pdfdir=$ac_optarg ;;
+
+  -psdir | --psdir | --psdi | --psd | --ps)
+    ac_prev=psdir ;;
+  -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
+    psdir=$ac_optarg ;;
+
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil)
+    silent=yes ;;
+
+  -runstatedir | --runstatedir | --runstatedi | --runstated \
+  | --runstate | --runstat | --runsta | --runst | --runs \
+  | --run | --ru | --r)
+    ac_prev=runstatedir ;;
+  -runstatedir=* | --runstatedir=* | --runstatedi=* | --runstated=* \
+  | --runstate=* | --runstat=* | --runsta=* | --runst=* | --runs=* \
+  | --run=* | --ru=* | --r=*)
+    runstatedir=$ac_optarg ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir=$ac_optarg ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir=$ac_optarg ;;
+
+  -site | --site | --sit)
+    ac_prev=site ;;
+  -site=* | --site=* | --sit=*)
+    site=$ac_optarg ;;
+
+  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+    ac_prev=srcdir ;;
+  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+    srcdir=$ac_optarg ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir=$ac_optarg ;;
+
+  -target | --target | --targe | --targ | --tar | --ta | --t)
+    ac_prev=target_alias ;;
+  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+    target_alias=$ac_optarg ;;
+
+  -v | -verbose | --verbose | --verbos | --verbo | --verb)
+    verbose=yes ;;
+
+  -version | --version | --versio | --versi | --vers | -V)
+    ac_init_version=: ;;
+
+  -with-* | --with-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=\$ac_optarg ;;
+
+  -without-* | --without-*)
+    ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+    # Reject names that are not valid shell variable names.
+    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+      as_fn_error $? "invalid package name: $ac_useropt"
+    ac_useropt_orig=$ac_useropt
+    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    case $ac_user_opts in
+      *"
+"with_$ac_useropt"
+"*) ;;
+      *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig"
+	 ac_unrecognized_sep=', ';;
+    esac
+    eval with_$ac_useropt=no ;;
+
+  --x)
+    # Obsolete; use --with-x.
+    with_x=yes ;;
+
+  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+  | --x-incl | --x-inc | --x-in | --x-i)
+    ac_prev=x_includes ;;
+  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+    x_includes=$ac_optarg ;;
+
+  -x-libraries | --x-libraries | --x-librarie | --x-librari \
+  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+    ac_prev=x_libraries ;;
+  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+    x_libraries=$ac_optarg ;;
+
+  -*) as_fn_error $? "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information"
+    ;;
+
+  *=*)
+    ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+    # Reject names that are not valid shell variable names.
+    case $ac_envvar in #(
+      '' | [0-9]* | *[!_$as_cr_alnum]* )
+      as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+    esac
+    eval $ac_envvar=\$ac_optarg
+    export $ac_envvar ;;
+
+  *)
+    # FIXME: should be removed in autoconf 3.0.
+    $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+      $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
+  ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+  as_fn_error $? "missing argument to $ac_option"
+fi
+
+if test -n "$ac_unrecognized_opts"; then
+  case $enable_option_checking in
+    no) ;;
+    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
+    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+  esac
+fi
+
+# Check all directory arguments for consistency.
+for ac_var in	exec_prefix prefix bindir sbindir libexecdir datarootdir \
+		datadir sysconfdir sharedstatedir localstatedir includedir \
+		oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
+		libdir localedir mandir runstatedir
+do
+  eval ac_val=\$$ac_var
+  # Remove trailing slashes.
+  case $ac_val in
+    */ )
+      ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'`
+      eval $ac_var=\$ac_val;;
+  esac
+  # Be sure to have absolute directory names.
+  case $ac_val in
+    [\\/$]* | ?:[\\/]* )  continue;;
+    NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
+  esac
+  as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
+done
+
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+# FIXME: To remove some day.
+build=$build_alias
+host=$host_alias
+target=$target_alias
+
+# FIXME: To remove some day.
+if test "x$host_alias" != x; then
+  if test "x$build_alias" = x; then
+    cross_compiling=maybe
+  elif test "x$build_alias" != "x$host_alias"; then
+    cross_compiling=yes
+  fi
+fi
+
+ac_tool_prefix=
+test -n "$host_alias" && ac_tool_prefix=$host_alias-
+
+test "$silent" = yes && exec 6>/dev/null
+
+
+ac_pwd=`pwd` && test -n "$ac_pwd" &&
+ac_ls_di=`ls -di .` &&
+ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
+  as_fn_error $? "working directory cannot be determined"
+test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
+  as_fn_error $? "pwd does not report name of working directory"
+
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then the parent directory.
+  ac_confdir=`$as_dirname -- "$as_myself" ||
+$as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_myself" : 'X\(//\)[^/]' \| \
+	 X"$as_myself" : 'X\(//\)$' \| \
+	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_myself" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  srcdir=$ac_confdir
+  if test ! -r "$srcdir/$ac_unique_file"; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r "$srcdir/$ac_unique_file"; then
+  test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
+  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
+fi
+ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_abs_confdir=`(
+	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
+	pwd)`
+# When building in place, set srcdir=.
+if test "$ac_abs_confdir" = "$ac_pwd"; then
+  srcdir=.
+fi
+# Remove unnecessary trailing slashes from srcdir.
+# Double slashes in file names in object file debugging info
+# mess up M-x gdb in Emacs.
+case $srcdir in
+*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
+esac
+for ac_var in $ac_precious_vars; do
+  eval ac_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_env_${ac_var}_value=\$${ac_var}
+  eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
+  eval ac_cv_env_${ac_var}_value=\$${ac_var}
+done
+
+#
+# Report the --help message.
+#
+if test "$ac_init_help" = "long"; then
+  # Omit some internal or obsolete options to make the list less imposing.
+  # This message is too long to be a string in the A/UX 3.1 sh.
+  cat <<_ACEOF
+\`configure' configures this package to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE.  See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+  -h, --help              display this help and exit
+      --help=short        display options specific to this package
+      --help=recursive    display the short help of all the included packages
+  -V, --version           display version information and exit
+  -q, --quiet, --silent   do not print \`checking ...' messages
+      --cache-file=FILE   cache test results in FILE [disabled]
+  -C, --config-cache      alias for \`--cache-file=config.cache'
+  -n, --no-create         do not create output files
+      --srcdir=DIR        find the sources in DIR [configure dir or \`..']
+
+Installation directories:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          [PREFIX]
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+  --bindir=DIR            user executables [EPREFIX/bin]
+  --sbindir=DIR           system admin executables [EPREFIX/sbin]
+  --libexecdir=DIR        program executables [EPREFIX/libexec]
+  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
+  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
+  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
+  --libdir=DIR            object code libraries [EPREFIX/lib]
+  --includedir=DIR        C header files [PREFIX/include]
+  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
+  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
+  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
+  --infodir=DIR           info documentation [DATAROOTDIR/info]
+  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
+  --mandir=DIR            man documentation [DATAROOTDIR/man]
+  --docdir=DIR            documentation root [DATAROOTDIR/doc/PACKAGE]
+  --htmldir=DIR           html documentation [DOCDIR]
+  --dvidir=DIR            dvi documentation [DOCDIR]
+  --pdfdir=DIR            pdf documentation [DOCDIR]
+  --psdir=DIR             ps documentation [DOCDIR]
+_ACEOF
+
+  cat <<\_ACEOF
+
+System types:
+  --build=BUILD     configure for building on BUILD [guessed]
+  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
+  --target=TARGET   configure for building compilers for TARGET [HOST]
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+
+  cat <<\_ACEOF
+
+Optional Features:
+  --disable-option-checking  ignore unrecognized --enable/--with options
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --enable-optimize=OPT Enable code optimizations (ie. -O2)
+  --enable-debug=DBG    Enable debugging (using compiler flags DBG)
+  --enable-debug-symbols=DBG    Enable debugging symbols
+                                       (using compiler flags DBG)
+  --enable-win32-target=\$t
+                          Specify win32 flavor. (WIN95 or WINNT)
+  --enable-debug-rtl      Use the MSVC debug runtime library
+  --enable-static-rtl     Use the MSVC static runtime library
+  --enable-x32            Enable x32 ABI support (x86_64 only)
+  --enable-64bit          Enable 64-bit support (on certain platforms)
+  --enable-mdupdate       Enable use of certain compilers' mdupdate feature
+  --enable-cplus          Enable some c++ api routines
+  --enable-macos-target=VER
+                          Set the minimum MacOS version needed at runtime
+                          10.3 for ppc, 10.4 for x86
+  --disable-os2-high-mem  Disable high-memory support on OS/2
+
+  --enable-strip          Enable stripping of shared libs and programs
+  --enable-user-pthreads  Build using userland pthreads
+  --enable-nspr-threads   Build using classic nspr threads
+  --enable-ipv6           Compile ipv6 support
+  --enable-wrap-malloc    Wrap malloc calls (gnu linker only)
+
+Optional Packages:
+  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+  --with-android-ndk=DIR
+                          location where the Android NDK can be found
+  --with-android-toolchain=DIR
+                          location of the Android toolchain
+  --with-android-version=VER
+                          Android platform version, default 5 for arm, 9 for x86/mips
+  --with-android-platform=DIR
+                          location of platform dir
+  --with-dist-prefix=DIST_PREFIX
+                          place build files in DIST_PREFIX dist
+  --with-dist-bindir=DIR  build execuatables in DIR DIST_PREFIX/bin
+  --with-dist-includedir=DIR
+                          build include files in DIR DIST_PREFIX/include/nspr
+  --with-dist-libdir=DIR  build library files in DIR DIST_PREFIX/lib
+  --with-mozilla          Compile NSPR with Mozilla support
+  --with-arm-kuser        Use kuser helpers (Linux/ARM only)
+                          (Requires kernel 2.6.13 or later)
+  --with-macos-sdk=dir    Location of platform SDK to use (Mac OS X only)
+  --with-thumb[=yes|no|toolchain-default]
+                          Use Thumb instruction set (-mthumb)
+  --with-thumb-interwork[=yes|no|toolchain-default]
+                           Use Thumb/ARM instuctions interwork (-mthumb-interwork)
+  --with-arch=[type|toolchain-default]
+                           Use specific CPU features (-march=type)
+  --with-fpu=[type|toolchain-default]
+                           Use specific FPU type (-mfpu=type)
+  --with-float-abi=[type|toolchain-default]
+                           Use specific arm float ABI (-mfloat-abi=type)
+  --with-soft-float[=yes|no|toolchain-default]
+                           Use soft float library (-msoft-float)
+  --with-ccache=path/to/ccache
+                          Enable compiling with ccache
+  --with-pthreads         Use system pthreads library as thread subsystem
+  --with-wrap-malloc=SHAREDLIB  Location of malloc wrapper library
+
+Some influential environment variables:
+  CC          C compiler command
+  CFLAGS      C compiler flags
+  LDFLAGS     linker flags, e.g. -L<lib dir> if you have libraries in a
+              nonstandard directory <lib dir>
+  LIBS        libraries to pass to the linker, e.g. -l<library>
+  CPPFLAGS    (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
+              you have headers in a nonstandard directory <include dir>
+  CXX         C++ compiler command
+  CXXFLAGS    C++ compiler flags
+  CPP         C preprocessor
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+Report bugs to the package provider.
+_ACEOF
+ac_status=$?
+fi
+
+if test "$ac_init_help" = "recursive"; then
+  # If there are subdirs, report their specific --help.
+  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+    test -d "$ac_dir" ||
+      { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
+      continue
+    ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+    cd "$ac_dir" || { ac_status=$?; continue; }
+    # Check for guested configure.
+    if test -f "$ac_srcdir/configure.gnu"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
+    elif test -f "$ac_srcdir/configure"; then
+      echo &&
+      $SHELL "$ac_srcdir/configure" --help=recursive
+    else
+      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+    fi || ac_status=$?
+    cd "$ac_pwd" || { ac_status=$?; break; }
+  done
+fi
+
+test -n "$ac_init_help" && exit $ac_status
+if $ac_init_version; then
+  cat <<\_ACEOF
+configure
+generated by GNU Autoconf 2.69
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+_ACEOF
+  exit
+fi
+
+## ------------------------ ##
+## Autoconf initialization. ##
+## ------------------------ ##
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
+
+# ac_fn_cxx_try_compile LINENO
+# ----------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_cxx_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_compile
+
+# ac_fn_c_try_cpp LINENO
+# ----------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } > conftest.i && {
+	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+    ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_cpp
+
+# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists, giving a warning if it cannot be compiled using
+# the include files in INCLUDES and setting the cache variable VAR
+# accordingly.
+ac_fn_c_check_header_mongrel ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if eval \${$3+:} false; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+else
+  # Is the header compilable?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
+$as_echo_n "checking $2 usability... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_header_compiler=yes
+else
+  ac_header_compiler=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
+$as_echo "$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
+$as_echo_n "checking $2 presence... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <$2>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  ac_header_preproc=yes
+else
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
+$as_echo "$ac_header_preproc" >&6; }
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
+  yes:no: )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
+$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+  no:yes:* )
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
+$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
+$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
+$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
+$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+    ;;
+esac
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  eval "$3=\$ac_header_compiler"
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_mongrel
+
+# ac_fn_c_try_run LINENO
+# ----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
+# that executables *can* be run.
+ac_fn_c_try_run ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: program exited with status $ac_status" >&5
+       $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+       ac_retval=$ac_status
+fi
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_run
+
+# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists and can be compiled using the include files in
+# INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_compile
+
+# ac_fn_c_try_link LINENO
+# -----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_link
+
+# ac_fn_c_check_func LINENO FUNC VAR
+# ----------------------------------
+# Tests whether FUNC exists, setting the cache variable VAR accordingly
+ac_fn_c_check_func ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define $2 innocuous_$2
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $2 (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $2
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $2 ();
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined __stub_$2 || defined __stub___$2
+choke me
+#endif
+
+int
+main ()
+{
+return $2 ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  eval "$3=yes"
+else
+  eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_func
+cat >config.log <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by $as_me, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  $ $0 $@
+
+_ACEOF
+exec 5>>config.log
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`
+
+/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
+/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
+/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
+/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
+/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    $as_echo "PATH: $as_dir"
+  done
+IFS=$as_save_IFS
+
+} >&5
+
+cat >&5 <<_ACEOF
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
+
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Strip out --silent because we don't want to record it for future runs.
+# Also quote any args containing shell meta-characters.
+# Make two passes to allow for proper duplicate-argument suppression.
+ac_configure_args=
+ac_configure_args0=
+ac_configure_args1=
+ac_must_keep_next=false
+for ac_pass in 1 2
+do
+  for ac_arg
+  do
+    case $ac_arg in
+    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
+    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+    | -silent | --silent | --silen | --sile | --sil)
+      continue ;;
+    *\'*)
+      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    esac
+    case $ac_pass in
+    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
+    2)
+      as_fn_append ac_configure_args1 " '$ac_arg'"
+      if test $ac_must_keep_next = true; then
+	ac_must_keep_next=false # Got value, back to normal.
+      else
+	case $ac_arg in
+	  *=* | --config-cache | -C | -disable-* | --disable-* \
+	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
+	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
+	  | -with-* | --with-* | -without-* | --without-* | --x)
+	    case "$ac_configure_args0 " in
+	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
+	    esac
+	    ;;
+	  -* ) ac_must_keep_next=true ;;
+	esac
+      fi
+      as_fn_append ac_configure_args " '$ac_arg'"
+      ;;
+    esac
+  done
+done
+{ ac_configure_args0=; unset ac_configure_args0;}
+{ ac_configure_args1=; unset ac_configure_args1;}
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log.  We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+# WARNING: Use '\'' to represent an apostrophe within the trap.
+# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
+trap 'exit_status=$?
+  # Save into config.log some information that might help in debugging.
+  {
+    echo
+
+    $as_echo "## ---------------- ##
+## Cache variables. ##
+## ---------------- ##"
+    echo
+    # The following way of writing the cache mishandles newlines in values,
+(
+  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+  (set) 2>&1 |
+    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      sed -n \
+	"s/'\''/'\''\\\\'\'''\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
+      ;; #(
+    *)
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+)
+    echo
+
+    $as_echo "## ----------------- ##
+## Output variables. ##
+## ----------------- ##"
+    echo
+    for ac_var in $ac_subst_vars
+    do
+      eval ac_val=\$$ac_var
+      case $ac_val in
+      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      esac
+      $as_echo "$ac_var='\''$ac_val'\''"
+    done | sort
+    echo
+
+    if test -n "$ac_subst_files"; then
+      $as_echo "## ------------------- ##
+## File substitutions. ##
+## ------------------- ##"
+      echo
+      for ac_var in $ac_subst_files
+      do
+	eval ac_val=\$$ac_var
+	case $ac_val in
+	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+	esac
+	$as_echo "$ac_var='\''$ac_val'\''"
+      done | sort
+      echo
+    fi
+
+    if test -s confdefs.h; then
+      $as_echo "## ----------- ##
+## confdefs.h. ##
+## ----------- ##"
+      echo
+      cat confdefs.h
+      echo
+    fi
+    test "$ac_signal" != 0 &&
+      $as_echo "$as_me: caught signal $ac_signal"
+    $as_echo "$as_me: exit $exit_status"
+  } >&5
+  rm -f core *.core core.conftest.* &&
+    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
+    exit $exit_status
+' 0
+for ac_signal in 1 2 13 15; do
+  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -f -r conftest* confdefs.h
+
+$as_echo "/* confdefs.h */" > confdefs.h
+
+# Predefined preprocessor variables.
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_NAME "$PACKAGE_NAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION "$PACKAGE_VERSION"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_STRING "$PACKAGE_STRING"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_URL "$PACKAGE_URL"
+_ACEOF
+
+
+# Let the site file select an alternate cache file if it wants to.
+# Prefer an explicitly selected file to automatically selected ones.
+ac_site_file1=NONE
+ac_site_file2=NONE
+if test -n "$CONFIG_SITE"; then
+  # We do not want a PATH search for config.site.
+  case $CONFIG_SITE in #((
+    -*)  ac_site_file1=./$CONFIG_SITE;;
+    */*) ac_site_file1=$CONFIG_SITE;;
+    *)   ac_site_file1=./$CONFIG_SITE;;
+  esac
+elif test "x$prefix" != xNONE; then
+  ac_site_file1=$prefix/share/config.site
+  ac_site_file2=$prefix/etc/config.site
+else
+  ac_site_file1=$ac_default_prefix/share/config.site
+  ac_site_file2=$ac_default_prefix/etc/config.site
+fi
+for ac_site_file in "$ac_site_file1" "$ac_site_file2"
+do
+  test "x$ac_site_file" = xNONE && continue
+  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+$as_echo "$as_me: loading site script $ac_site_file" >&6;}
+    sed 's/^/| /' "$ac_site_file" >&5
+    . "$ac_site_file" \
+      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "failed to load site script $ac_site_file
+See \`config.log' for more details" "$LINENO" 5; }
+  fi
+done
+
+if test -r "$cache_file"; then
+  # Some versions of bash will fail to source /dev/null (special files
+  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
+  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+$as_echo "$as_me: loading cache $cache_file" >&6;}
+    case $cache_file in
+      [\\/]* | ?:[\\/]* ) . "$cache_file";;
+      *)                      . "./$cache_file";;
+    esac
+  fi
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+$as_echo "$as_me: creating cache $cache_file" >&6;}
+  >$cache_file
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_cache_corrupted=false
+for ac_var in $ac_precious_vars; do
+  eval ac_old_set=\$ac_cv_env_${ac_var}_set
+  eval ac_new_set=\$ac_env_${ac_var}_set
+  eval ac_old_val=\$ac_cv_env_${ac_var}_value
+  eval ac_new_val=\$ac_env_${ac_var}_value
+  case $ac_old_set,$ac_new_set in
+    set,)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,set)
+      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+      ac_cache_corrupted=: ;;
+    ,);;
+    *)
+      if test "x$ac_old_val" != "x$ac_new_val"; then
+	# differences in whitespace do not lead to failure.
+	ac_old_val_w=`echo x $ac_old_val`
+	ac_new_val_w=`echo x $ac_new_val`
+	if test "$ac_old_val_w" != "$ac_new_val_w"; then
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
+$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+	  ac_cache_corrupted=:
+	else
+	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+	  eval $ac_var=\$ac_old_val
+	fi
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
+$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
+	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
+$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
+      fi;;
+  esac
+  # Pass precious variables to config.status.
+  if test "$ac_new_set" = set; then
+    case $ac_new_val in
+    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *) ac_arg=$ac_var=$ac_new_val ;;
+    esac
+    case " $ac_configure_args " in
+      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
+      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
+    esac
+  fi
+done
+if $ac_cache_corrupted; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
+  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
+fi
+## -------------------- ##
+## Main body of script. ##
+## -------------------- ##
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+ac_aux_dir=
+for ac_dir in ${srcdir}/build/autoconf "$srcdir"/${srcdir}/build/autoconf; do
+  if test -f "$ac_dir/install-sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f "$ac_dir/install.sh"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  elif test -f "$ac_dir/shtool"; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/shtool install -c"
+    break
+  fi
+done
+if test -z "$ac_aux_dir"; then
+  as_fn_error $? "cannot find install-sh, install.sh, or shtool in ${srcdir}/build/autoconf \"$srcdir\"/${srcdir}/build/autoconf" "$LINENO" 5
+fi
+
+# These three variables are undocumented and unsupported,
+# and are intended to be withdrawn in a future Autoconf release.
+# They can cause serious problems if a builder's source tree is in a directory
+# whose full name contains unusual characters.
+ac_config_guess="$SHELL $ac_aux_dir/config.guess"  # Please don't use this var.
+ac_config_sub="$SHELL $ac_aux_dir/config.sub"  # Please don't use this var.
+ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.
+
+
+# Make sure we can run config.sub.
+$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
+  as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
+$as_echo_n "checking build system type... " >&6; }
+if ${ac_cv_build+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_build_alias=$build_alias
+test "x$ac_build_alias" = x &&
+  ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+test "x$ac_build_alias" = x &&
+  as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
+ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
+  as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
+$as_echo "$ac_cv_build" >&6; }
+case $ac_cv_build in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
+esac
+build=$ac_cv_build
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_build
+shift
+build_cpu=$1
+build_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+build_os=$*
+IFS=$ac_save_IFS
+case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
+$as_echo_n "checking host system type... " >&6; }
+if ${ac_cv_host+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$host_alias" = x; then
+  ac_cv_host=$ac_cv_build
+else
+  ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
+    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
+$as_echo "$ac_cv_host" >&6; }
+case $ac_cv_host in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
+esac
+host=$ac_cv_host
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_host
+shift
+host_cpu=$1
+host_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+host_os=$*
+IFS=$ac_save_IFS
+case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking target system type" >&5
+$as_echo_n "checking target system type... " >&6; }
+if ${ac_cv_target+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test "x$target_alias" = x; then
+  ac_cv_target=$ac_cv_host
+else
+  ac_cv_target=`$SHELL "$ac_aux_dir/config.sub" $target_alias` ||
+    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $target_alias failed" "$LINENO" 5
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_target" >&5
+$as_echo "$ac_cv_target" >&6; }
+case $ac_cv_target in
+*-*-*) ;;
+*) as_fn_error $? "invalid value of canonical target" "$LINENO" 5;;
+esac
+target=$ac_cv_target
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_target
+shift
+target_cpu=$1
+target_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+target_os=$*
+IFS=$ac_save_IFS
+case $target_os in *\ *) target_os=`echo "$target_os" | sed 's/ /-/g'`;; esac
+
+
+# The aliases save the names the user supplied, while $host etc.
+# will get canonicalized.
+test -n "$target_alias" &&
+  test "$program_prefix$program_suffix$program_transform_name" = \
+    NONENONEs,x,x, &&
+  program_prefix=${target_alias}-
+
+MOD_MAJOR_VERSION=4
+MOD_MINOR_VERSION=29
+MOD_PATCH_VERSION=0
+NSPR_MODNAME=nspr20
+_HAVE_PTHREADS=
+USE_PTHREADS=
+USE_USER_PTHREADS=
+USE_NSPR_THREADS=
+USE_N32=
+USE_X32=
+USE_64=
+USE_CPLUS=
+USE_IPV6=
+USE_MDUPDATE=
+_MACOSX_DEPLOYMENT_TARGET=
+_OPTIMIZE_FLAGS=-O
+_DEBUG_FLAGS=-g
+MOZ_DEBUG=1
+MOZ_OPTIMIZE=
+OBJDIR='$(OBJDIR_NAME)'
+OBJDIR_NAME=.
+OBJDIR_SUFFIX=OBJ
+NSINSTALL='$(MOD_DEPTH)/config/$(OBJDIR_NAME)/nsinstall'
+NOSUCHFILE=/no-such-file
+LIBNSPR='-L$(dist_libdir) -lnspr$(MOD_MAJOR_VERSION)'
+LIBPLC='-L$(dist_libdir) -lplc$(MOD_MAJOR_VERSION)'
+CYGWIN_WRAPPER=
+MACOS_SDK_DIR=
+NEXT_ROOT=
+MT=
+MOZ_OS2_HIGH_MEMORY=1
+PROFILE_GEN_CFLAGS=
+PROFILE_GEN_LDFLAGS=
+PROFILE_USE_CFLAGS=
+PROFILE_USE_LDFLAGS=
+
+RESOLVE_LINK_SYMBOLS=
+
+CFLAGS="${CFLAGS=}"
+CXXFLAGS="${CXXFLAGS=}"
+LDFLAGS="${LDFLAGS=}"
+DLLFLAGS="${DLLFLAGS=}"
+HOST_CFLAGS="${HOST_CFLAGS=}"
+HOST_LDFLAGS="${HOST_LDFLAGS=}"
+
+case "$target" in
+*-cygwin*|*-mingw*|*-msys*)
+    # Check to see if we are really running in a msvc environemnt
+    _WIN32_MSVC=
+    for ac_prog in cl
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$CC" && break
+done
+
+    cat > conftest.c <<EOF
+#ifdef _MSC_VER
+COMPILER IS MSVC
+#endif
+EOF
+    read dummy <<EOF
+$($CC -E conftest.c 2>/dev/null | grep COMPILER)
+EOF
+    if test -n "$dummy"; then
+        _WIN32_MSVC=1
+        CXX=$CC
+    fi
+    rm -f conftest.c
+    ;;
+*-mks*)
+    _WIN32_MSVC=1
+    ;;
+esac
+
+if test -n "$_WIN32_MSVC"; then
+    SKIP_PATH_CHECKS=1
+    SKIP_COMPILER_CHECKS=1
+    SKIP_LIBRARY_CHECKS=1
+fi
+
+
+
+# Check whether --with-android-ndk was given.
+if test "${with_android_ndk+set}" = set; then :
+  withval=$with_android_ndk; android_ndk=$withval
+fi
+
+
+
+# Check whether --with-android-toolchain was given.
+if test "${with_android_toolchain+set}" = set; then :
+  withval=$with_android_toolchain; android_toolchain=$withval
+fi
+
+
+case "$target_cpu" in
+arm)
+    android_version=5
+    ;;
+i?86|mipsel)
+    android_version=9
+    ;;
+esac
+
+
+# Check whether --with-android-version was given.
+if test "${with_android_version+set}" = set; then :
+  withval=$with_android_version; android_version=$withval
+fi
+
+
+
+# Check whether --with-android-platform was given.
+if test "${with_android_platform+set}" = set; then :
+  withval=$with_android_platform; android_platform=$withval
+fi
+
+
+case "$target" in
+x86_64-linux*-android*)
+    android_tool_prefix="x86_64-linux-android"
+    ;;
+aarch64-linux*-android*)
+    android_tool_prefix="aarch64-linux-android"
+    ;;
+arm-linux*-android*|*-linuxandroid*)
+    android_tool_prefix="arm-linux-androideabi"
+    ;;
+i?86-*android*)
+    android_tool_prefix="i686-linux-android"
+    ;;
+mipsel-*android*)
+    android_tool_prefix="mipsel-linux-android"
+    ;;
+*)
+    android_tool_prefix="$target_os"
+    ;;
+esac
+
+case "$target" in
+*-android*|*-linuxandroid*)
+    if test -z "$android_ndk" ; then
+       as_fn_error $? "You must specify --with-android-ndk=/path/to/ndk when targeting Android." "$LINENO" 5
+    fi
+
+    if test -z "$android_toolchain" ; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for android toolchain directory" >&5
+$as_echo_n "checking for android toolchain directory... " >&6; }
+
+        kernel_name=`uname -s | tr "[:upper:]" "[:lower:]"`
+
+        case "$target_cpu" in
+        arm)
+            target_name=arm-linux-androideabi-4.4.3
+            ;;
+        i?86)
+            target_name=x86-4.4.3
+            ;;
+        mipsel)
+            target_name=mipsel-linux-android-4.4.3
+            ;;
+        esac
+        android_toolchain="$android_ndk"/toolchains/$target_name/prebuilt/$kernel_name-x86
+
+        if test -d "$android_toolchain" ; then
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: $android_toolchain" >&5
+$as_echo "$android_toolchain" >&6; }
+        else
+            as_fn_error $? "not found. You have to specify --with-android-toolchain=/path/to/ndk/toolchain." "$LINENO" 5
+        fi
+    fi
+
+    if test -z "$android_platform" ; then
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for android platform directory" >&5
+$as_echo_n "checking for android platform directory... " >&6; }
+
+        case "$target_cpu" in
+        arm)
+            target_name=arm
+            ;;
+        i?86)
+            target_name=x86
+            ;;
+        mipsel)
+            target_name=mips
+            ;;
+        esac
+
+        android_platform="$android_ndk"/platforms/android-"$android_version"/arch-"$target_name"
+
+        if test -d "$android_platform" ; then
+            { $as_echo "$as_me:${as_lineno-$LINENO}: result: $android_platform" >&5
+$as_echo "$android_platform" >&6; }
+        else
+            as_fn_error $? "not found. You have to specify --with-android-platform=/path/to/ndk/platform." "$LINENO" 5
+        fi
+    fi
+
+            case "$target_cpu" in
+    i?86)
+        if ! test -e "$android_toolchain"/bin/"$android_tool_prefix"-gcc; then
+                        android_tool_prefix="i686-android-linux"
+        fi
+        ;;
+    esac
+
+        AS="$android_toolchain"/bin/"$android_tool_prefix"-as
+    CC="$android_toolchain"/bin/"$android_tool_prefix"-gcc
+    CXX="$android_toolchain"/bin/"$android_tool_prefix"-g++
+    CPP="$android_toolchain"/bin/"$android_tool_prefix"-cpp
+    LD="$android_toolchain"/bin/"$android_tool_prefix"-ld
+    AR="$android_toolchain"/bin/"$android_tool_prefix"-ar
+    RANLIB="$android_toolchain"/bin/"$android_tool_prefix"-ranlib
+    STRIP="$android_toolchain"/bin/"$android_tool_prefix"-strip
+
+    CPPFLAGS="-I$android_platform/usr/include $CPPFLAGS"
+    CFLAGS="-mandroid -I$android_platform/usr/include -fno-short-enums -fno-exceptions $CFLAGS"
+    CXXFLAGS="-mandroid -I$android_platform/usr/include -fpic -fno-short-enums -fno-exceptions $CXXFLAGS"
+    LDFLAGS="-mandroid -L$android_platform/usr/lib -Wl,-rpath-link=$android_platform/usr/lib --sysroot=$android_platform $LDFLAGS"
+
+    $as_echo "#define ANDROID 1" >>confdefs.h
+
+    ;;
+esac
+
+dist_prefix='${MOD_DEPTH}/dist'
+dist_bindir='${dist_prefix}/bin'
+dist_includedir='${dist_prefix}/include/nspr'
+dist_libdir='${dist_prefix}/lib'
+if test "${includedir}" = '${prefix}/include'; then
+    includedir='${prefix}/include/nspr'
+fi
+
+
+# Check whether --with-dist-prefix was given.
+if test "${with_dist_prefix+set}" = set; then :
+  withval=$with_dist_prefix; dist_prefix=$withval
+fi
+
+
+
+# Check whether --with-dist-bindir was given.
+if test "${with_dist_bindir+set}" = set; then :
+  withval=$with_dist_bindir; dist_bindir=$withval
+fi
+
+
+
+# Check whether --with-dist-includedir was given.
+if test "${with_dist_includedir+set}" = set; then :
+  withval=$with_dist_includedir; dist_includedir=$withval
+fi
+
+
+
+# Check whether --with-dist-libdir was given.
+if test "${with_dist_libdir+set}" = set; then :
+  withval=$with_dist_libdir; dist_libdir=$withval
+fi
+
+
+
+
+
+
+
+
+# Check whether --with-mozilla was given.
+if test "${with_mozilla+set}" = set; then :
+  withval=$with_mozilla;    if test "$withval" = "yes"; then
+            $as_echo "#define MOZILLA_CLIENT 1" >>confdefs.h
+
+            MOZILLA_CLIENT=1
+	    else
+	        MOZILLA_CLIENT=
+	    fi
+else
+  	if test -n "$MOZILLA_CLIENT"; then
+	        $as_echo "#define MOZILLA_CLIENT 1" >>confdefs.h
+
+	    fi
+fi
+
+
+# Check whether --enable-optimize was given.
+if test "${enable_optimize+set}" = set; then :
+  enableval=$enable_optimize;  if test "$enableval" != "no"; then
+          MOZ_OPTIMIZE=1
+          if test -n "$enableval" -a "$enableval" != "yes"; then
+            _OPTIMIZE_FLAGS=`echo $enableval | sed -e 's|\\\ | |g'`
+            _SAVE_OPTIMIZE_FLAGS=$_OPTIMIZE_FLAGS
+          fi
+      else
+          MOZ_OPTIMIZE=
+      fi
+fi
+
+
+# Check whether --enable-debug was given.
+if test "${enable_debug+set}" = set; then :
+  enableval=$enable_debug;  if test "$enableval" != "no"; then
+          MOZ_DEBUG=1
+          MOZ_DEBUG_SYMBOLS=1
+          if test -n "$enableval" -a "$enableval" != "yes"; then
+              _DEBUG_FLAGS=`echo $enableval | sed -e 's|\\\ | |g'`
+              _SAVE_DEBUG_FLAGS=$_DEBUG_FLAGS
+          fi
+      else
+          MOZ_DEBUG=
+      fi
+else
+  MOZ_DEBUG_SYMBOLS=1
+fi
+
+
+# Check whether --enable-debug-symbols was given.
+if test "${enable_debug_symbols+set}" = set; then :
+  enableval=$enable_debug_symbols;  if test "$enableval" != "no"; then
+          MOZ_DEBUG_SYMBOLS=1
+          if test -n "$enableval" -a "$enableval" != "yes"; then
+              if test -z "$_SAVE_DEBUG_FLAGS"; then
+                  _DEBUG_FLAGS=`echo $enableval | sed -e 's|\\\ | |g'`
+                  _SAVE_DEBUG_FLAGS=$_DEBUG_FLAGS
+              else
+                  as_fn_error $? "--enable-debug-symbols flags cannot be used with --enable-debug flags" "$LINENO" 5
+              fi
+          fi
+      else
+          MOZ_DEBUG_SYMBOLS=
+      fi
+fi
+
+
+# Check whether --enable-win32-target was given.
+if test "${enable_win32_target+set}" = set; then :
+  enableval=$enable_win32_target; OS_TARGET=`echo $enableval | tr a-z A-Z`
+fi
+
+
+
+# Check whether --enable-debug-rtl was given.
+if test "${enable_debug_rtl+set}" = set; then :
+  enableval=$enable_debug_rtl;  if test "$enableval" = "yes"; then
+	    USE_DEBUG_RTL=1
+      else
+	    USE_DEBUG_RTL=0
+      fi
+fi
+
+
+# Check whether --enable-static-rtl was given.
+if test "${enable_static_rtl+set}" = set; then :
+  enableval=$enable_static_rtl;  if test "$enableval" = "yes"; then
+	    USE_STATIC_RTL=1
+      fi
+fi
+
+
+# Check whether --enable-x32 was given.
+if test "${enable_x32+set}" = set; then :
+  enableval=$enable_x32;  if test "$enableval" = "yes"; then
+        USE_X32=1
+      else if test "$enableval" = "no"; then
+        USE_X32=
+      fi
+    fi
+fi
+
+
+# Check whether --enable-64bit was given.
+if test "${enable_64bit+set}" = set; then :
+  enableval=$enable_64bit;  if test "$enableval" = "yes"; then
+	    USE_64=1
+      fi
+fi
+
+
+# Check whether --enable-mdupdate was given.
+if test "${enable_mdupdate+set}" = set; then :
+  enableval=$enable_mdupdate;  if test "$enableval" = "yes"; then
+	    USE_MDUPDATE=1
+      fi
+fi
+
+
+# Check whether --enable-cplus was given.
+if test "${enable_cplus+set}" = set; then :
+  enableval=$enable_cplus;  if test "$enableval" = "yes"; then
+	    USE_CPLUS=1
+      fi
+fi
+
+
+
+# Check whether --with-arm-kuser was given.
+if test "${with_arm_kuser+set}" = set; then :
+  withval=$with_arm_kuser;  if test "$withval" = "yes"; then
+	    $as_echo "#define _PR_ARM_KUSER 1" >>confdefs.h
+
+      fi
+fi
+
+
+
+# Check whether --with-macos-sdk was given.
+if test "${with_macos_sdk+set}" = set; then :
+  withval=$with_macos_sdk; MACOS_SDK_DIR=$withval
+fi
+
+
+# Check whether --enable-macos-target was given.
+if test "${enable_macos_target+set}" = set; then :
+  enableval=$enable_macos_target; _MACOSX_DEPLOYMENT_TARGET=$enableval
+fi
+
+
+case "$target" in
+
+*-aix*)
+    case "${target_os}" in
+    aix3.2*)
+        USE_NSPR_THREADS=1
+        ;;
+    *)
+        USE_PTHREADS=1
+        ;;
+    esac
+    ;;
+
+esac
+
+if test -z "$CC"; then
+    case "$target" in
+
+    *-aix*)
+        if test -z "$USE_NSPR_THREADS"; then
+            CC=xlc_r
+        else
+            CC=xlc
+        fi
+    ;;
+
+    *-hpux*)
+        CC=cc
+    ;;
+
+    *-solaris*)
+        CC=cc
+    ;;
+
+    esac
+fi
+
+if test -z "$CXX"; then
+    case "$target" in
+
+    *-aix*)
+        if test -z "$USE_NSPR_THREADS"; then
+            CXX=xlC_r
+        else
+            CXX=xlC
+        fi
+    ;;
+
+    *-hpux*)
+        case "${target_os}" in
+        hpux10.30)
+            CXX=aCC
+            ;;
+        hpux11.*)
+            CXX=aCC
+            ;;
+        *)
+            CXX=CC
+            ;;
+        esac
+    ;;
+
+    *-solaris*)
+        CXX=CC
+    ;;
+
+    esac
+fi
+
+if test -z "$SKIP_PATH_CHECKS"; then
+    # Extract the first word of "$WHOAMI whoami", so it can be a program name with args.
+set dummy $WHOAMI whoami; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_WHOAMI+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $WHOAMI in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_WHOAMI="$WHOAMI" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_WHOAMI="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  test -z "$ac_cv_path_WHOAMI" && ac_cv_path_WHOAMI="echo not_whoami"
+  ;;
+esac
+fi
+WHOAMI=$ac_cv_path_WHOAMI
+if test -n "$WHOAMI"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $WHOAMI" >&5
+$as_echo "$WHOAMI" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+
+if test -n "$MOZ_DEBUG"; then
+    $as_echo "#define DEBUG 1" >>confdefs.h
+
+    DEFINES="$DEFINES -UNDEBUG"
+
+    case "${target_os}" in
+    mks*|cygwin*|mingw*|msys*|os2*)
+        DEFINES="$DEFINES -DDEBUG_`echo ${USERNAME} | sed -e 's| |_|g'`"
+        ;;
+    *)
+        DEFINES="$DEFINES -DDEBUG_`$WHOAMI`"
+        ;;
+    esac
+else
+    $as_echo "#define NDEBUG 1" >>confdefs.h
+
+    DEFINES="$DEFINES -UDEBUG"
+fi
+
+if test -z "$SKIP_COMPILER_CHECKS"; then
+if test "$target" != "$host"; then
+    echo "cross compiling from $host to $target"
+    cross_compiling=yes
+
+    case "$build:$target" in
+      powerpc-apple-darwin8*:i?86-apple-darwin*)
+                                                _SAVE_CFLAGS=$CFLAGS
+        _SAVE_CXXFLAGS=$CXXFLAGS
+        CFLAGS="-isysroot /Developer/SDKs/MacOSX10.4u.sdk $CFLAGS"
+        CXXFLAGS="-isysroot /Developer/SDKs/MacOSX10.4u.sdk $CXXFLAGS"
+        ;;
+    esac
+
+    for ac_prog in $CC "${target_alias}-gcc" "${target}-gcc"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$CC" && break
+done
+test -n "$CC" || CC="echo"
+
+    unset ac_cv_prog_CC
+    fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+  ac_ct_CC=$CC
+  # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="gcc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+else
+  CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+          if test -n "$ac_tool_prefix"; then
+    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="${ac_tool_prefix}cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  fi
+fi
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+       ac_prog_rejected=yes
+       continue
+     fi
+    ac_cv_prog_CC="cc"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# != 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+  fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$CC"; then
+  if test -n "$ac_tool_prefix"; then
+  for ac_prog in cl.exe
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CC" && break
+  done
+fi
+if test -z "$CC"; then
+  ac_ct_CC=$CC
+  for ac_prog in cl.exe
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CC"; then
+  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CC" && break
+done
+
+  if test "x$ac_ct_CC" = x; then
+    CC=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CC=$ac_ct_CC
+  fi
+fi
+
+fi
+
+
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
+
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+$as_echo_n "checking whether the C compiler works... " >&6; }
+ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+
+# The possible output files:
+ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
+
+ac_rmfiles=
+for ac_file in $ac_files
+do
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    * ) ac_rmfiles="$ac_rmfiles $ac_file";;
+  esac
+done
+rm -f $ac_rmfiles
+
+if { { ac_try="$ac_link_default"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link_default") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
+# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+# in a Makefile.  We should not override ac_cv_exeext if it was cached,
+# so that the user can short-circuit this test for compilers unknown to
+# Autoconf.
+for ac_file in $ac_files ''
+do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
+	;;
+    [ab].out )
+	# We found the default executable, but exeext='' is most
+	# certainly right.
+	break;;
+    *.* )
+	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+	then :; else
+	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	fi
+	# We set ac_cv_exeext here because the later test for it is not
+	# safe: cross compilers may not add the suffix if given an `-o'
+	# argument, so we may need to know it at that point already.
+	# Even if this section looks crufty: it has the advantage of
+	# actually working.
+	break;;
+    * )
+	break;;
+  esac
+done
+test "$ac_cv_exeext" = no && ac_cv_exeext=
+
+else
+  ac_file=''
+fi
+if test -z "$ac_file"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+$as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "C compiler cannot create executables
+See \`config.log' for more details" "$LINENO" 5; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+$as_echo "$ac_file" >&6; }
+ac_exeext=$ac_cv_exeext
+
+rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+$as_echo_n "checking for suffix of executables... " >&6; }
+if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in conftest.exe conftest conftest.*; do
+  test -f "$ac_file" || continue
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+	  break;;
+    * ) break;;
+  esac
+done
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest conftest$ac_cv_exeext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+$as_echo "$ac_cv_exeext" >&6; }
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdio.h>
+int
+main ()
+{
+FILE *f = fopen ("conftest.out", "w");
+ return ferror (f) || fclose (f) != 0;
+
+  ;
+  return 0;
+}
+_ACEOF
+ac_clean_files="$ac_clean_files conftest.out"
+# Check that the compiler produces executables we can run.  If not, either
+# the compiler is broken, or we cross compile.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+$as_echo_n "checking whether we are cross compiling... " >&6; }
+if test "$cross_compiling" != yes; then
+  { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+  if { ac_try='./conftest$ac_cv_exeext'
+  { { case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_try") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; }; then
+    cross_compiling=no
+  else
+    if test "$cross_compiling" = maybe; then
+	cross_compiling=yes
+    else
+	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details" "$LINENO" 5; }
+    fi
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+$as_echo "$cross_compiling" >&6; }
+
+rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+$as_echo_n "checking for suffix of object files... " >&6; }
+if ${ac_cv_objext+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>&5
+  ac_status=$?
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }; then :
+  for ac_file in conftest.o conftest.obj conftest.*; do
+  test -f "$ac_file" || continue;
+  case $ac_file in
+    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
+    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+       break;;
+  esac
+done
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+$as_echo "$ac_cv_objext" >&6; }
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
+$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
+if ${ac_cv_c_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+$as_echo "$ac_cv_c_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GCC=yes
+else
+  GCC=
+fi
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+$as_echo_n "checking whether $CC accepts -g... " >&6; }
+if ${ac_cv_prog_cc_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_c_werror_flag=$ac_c_werror_flag
+   ac_c_werror_flag=yes
+   ac_cv_prog_cc_g=no
+   CFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+else
+  CFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  ac_c_werror_flag=$ac_save_c_werror_flag
+	 CFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_c_werror_flag=$ac_save_c_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+$as_echo "$ac_cv_prog_cc_g" >&6; }
+if test "$ac_test_CFLAGS" = set; then
+  CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+  if test "$GCC" = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-g"
+  fi
+else
+  if test "$GCC" = yes; then
+    CFLAGS="-O2"
+  else
+    CFLAGS=
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
+$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
+if ${ac_cv_prog_cc_c89+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdarg.h>
+#include <stdio.h>
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+     char **p;
+     int i;
+{
+  return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+  char *s;
+  va_list v;
+  va_start (v,p);
+  s = g (p, va_arg (v,int));
+  va_end (v);
+  return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
+   function prototypes and stuff, but not '\xHH' hex character constants.
+   These don't provoke an error unfortunately, instead are silently treated
+   as 'x'.  The following induces an error, until -std is added to get
+   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
+   array size at least.  It's necessary to write '\x00'==0 to get something
+   that's true only with -std.  */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+   inside strings and character constants.  */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
+  ;
+  return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+  CC="$ac_save_CC $ac_arg"
+  if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_prog_cc_c89=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+  test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c89" in
+  x)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+  xno)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+  *)
+    CC="$CC $ac_cv_prog_cc_c89"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
+
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+if test "$target" != "$host"; then
+    if test -n "$USE_CPLUS"; then
+        for ac_prog in $CXX "${target_alias}-g++" "${target}-g++"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CXX"; then
+  ac_cv_prog_CXX="$CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CXX="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CXX=$ac_cv_prog_CXX
+if test -n "$CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
+$as_echo "$CXX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$CXX" && break
+done
+test -n "$CXX" || CXX="echo"
+
+        unset ac_cv_prog_CXX
+        ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+if test -z "$CXX"; then
+  if test -n "$CCC"; then
+    CXX=$CCC
+  else
+    if test -n "$ac_tool_prefix"; then
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CXX"; then
+  ac_cv_prog_CXX="$CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CXX=$ac_cv_prog_CXX
+if test -n "$CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
+$as_echo "$CXX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CXX" && break
+  done
+fi
+if test -z "$CXX"; then
+  ac_ct_CXX=$CXX
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CXX"; then
+  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CXX="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
+if test -n "$ac_ct_CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
+$as_echo "$ac_ct_CXX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CXX" && break
+done
+
+  if test "x$ac_ct_CXX" = x; then
+    CXX="g++"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CXX=$ac_ct_CXX
+  fi
+fi
+
+  fi
+fi
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5
+$as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; }
+if ${ac_cv_cxx_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
+$as_echo "$ac_cv_cxx_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GXX=yes
+else
+  GXX=
+fi
+ac_test_CXXFLAGS=${CXXFLAGS+set}
+ac_save_CXXFLAGS=$CXXFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
+$as_echo_n "checking whether $CXX accepts -g... " >&6; }
+if ${ac_cv_prog_cxx_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+   ac_cxx_werror_flag=yes
+   ac_cv_prog_cxx_g=no
+   CXXFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_prog_cxx_g=yes
+else
+  CXXFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+
+else
+  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+	 CXXFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_prog_cxx_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
+$as_echo "$ac_cv_prog_cxx_g" >&6; }
+if test "$ac_test_CXXFLAGS" = set; then
+  CXXFLAGS=$ac_save_CXXFLAGS
+elif test $ac_cv_prog_cxx_g = yes; then
+  if test "$GXX" = yes; then
+    CXXFLAGS="-g -O2"
+  else
+    CXXFLAGS="-g"
+  fi
+else
+  if test "$GXX" = yes; then
+    CXXFLAGS="-O2"
+  else
+    CXXFLAGS=
+  fi
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+    fi
+
+    case "$build:$target" in
+      powerpc-apple-darwin8*:i?86-apple-darwin*|*:arm*-apple-darwin*)
+                                CFLAGS=$_SAVE_CFLAGS
+        CXXFLAGS=$_SAVE_CXXFLAGS
+        ;;
+    esac
+
+    for ac_prog in $RANLIB "${target_alias}-ranlib" "${target}-ranlib"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RANLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$RANLIB"; then
+  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_RANLIB="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+RANLIB=$ac_cv_prog_RANLIB
+if test -n "$RANLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
+$as_echo "$RANLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$RANLIB" && break
+done
+test -n "$RANLIB" || RANLIB="echo"
+
+    for ac_prog in $AR "${target_alias}-ar" "${target}-ar"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AR"; then
+  ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AR="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+$as_echo "$AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$AR" && break
+done
+test -n "$AR" || AR="echo"
+
+    for ac_prog in $AS "${target_alias}-as" "${target}-as"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AS+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AS"; then
+  ac_cv_prog_AS="$AS" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AS="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AS=$ac_cv_prog_AS
+if test -n "$AS"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AS" >&5
+$as_echo "$AS" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$AS" && break
+done
+test -n "$AS" || AS="echo"
+
+    for ac_prog in $LD "${target_alias}-ld" "${target}-ld"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_LD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$LD"; then
+  ac_cv_prog_LD="$LD" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_LD="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+LD=$ac_cv_prog_LD
+if test -n "$LD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$LD" && break
+done
+test -n "$LD" || LD="echo"
+
+    for ac_prog in $STRIP "${target_alias}-strip" "${target}-strip"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$STRIP"; then
+  ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_STRIP="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$STRIP" && break
+done
+test -n "$STRIP" || STRIP="echo"
+
+    for ac_prog in $WINDRES "${target_alias}-windres" "${target}-windres"
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_WINDRES+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$WINDRES"; then
+  ac_cv_prog_WINDRES="$WINDRES" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_WINDRES="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+WINDRES=$ac_cv_prog_WINDRES
+if test -n "$WINDRES"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $WINDRES" >&5
+$as_echo "$WINDRES" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$WINDRES" && break
+done
+test -n "$WINDRES" || WINDRES="echo"
+
+
+    _SAVE_CC="$CC"
+    _SAVE_CFLAGS="$CFLAGS"
+    _SAVE_LDFLAGS="$LDFLAGS"
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $host compiler" >&5
+$as_echo_n "checking for $host compiler... " >&6; }
+    for ac_prog in $HOST_CC gcc cc /usr/ucb/cc
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_HOST_CC+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$HOST_CC"; then
+  ac_cv_prog_HOST_CC="$HOST_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_HOST_CC="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+HOST_CC=$ac_cv_prog_HOST_CC
+if test -n "$HOST_CC"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $HOST_CC" >&5
+$as_echo "$HOST_CC" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$HOST_CC" && break
+done
+test -n "$HOST_CC" || HOST_CC=""""
+
+    if test -z "$HOST_CC"; then
+        as_fn_error $? "no acceptable cc found in \$PATH" "$LINENO" 5
+    fi
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $HOST_CC" >&5
+$as_echo "$HOST_CC" >&6; }
+
+    CC="$HOST_CC"
+    CFLAGS="$HOST_CFLAGS"
+    LDFLAGS="$HOST_LDFLAGS"
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $host compiler ($HOST_CC $HOST_CFLAGS $HOST_LDFLAGS) works" >&5
+$as_echo_n "checking whether the $host compiler ($HOST_CC $HOST_CFLAGS $HOST_LDFLAGS) works... " >&6; }
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  as_fn_error $? "installation or configuration problem: $host compiler $HOST_CC cannot create executables." "$LINENO" 5
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+    CC=$_SAVE_CC
+    CFLAGS=$_SAVE_CFLAGS
+    LDFLAGS=$_SAVE_LDFLAGS
+else
+    if test -n "$USE_CPLUS"; then
+        if test "$CC" = "cl" -a -z "$CXX"; then
+            CXX=$CC
+        else
+            ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+if test -z "$CXX"; then
+  if test -n "$CCC"; then
+    CXX=$CCC
+  else
+    if test -n "$ac_tool_prefix"; then
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+  do
+    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$CXX"; then
+  ac_cv_prog_CXX="$CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+CXX=$ac_cv_prog_CXX
+if test -n "$CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
+$as_echo "$CXX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+    test -n "$CXX" && break
+  done
+fi
+if test -z "$CXX"; then
+  ac_ct_CXX=$CXX
+  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CXX+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_CXX"; then
+  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_CXX="$ac_prog"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
+if test -n "$ac_ct_CXX"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
+$as_echo "$ac_ct_CXX" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$ac_ct_CXX" && break
+done
+
+  if test "x$ac_ct_CXX" = x; then
+    CXX="g++"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    CXX=$ac_ct_CXX
+  fi
+fi
+
+  fi
+fi
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+  { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    sed '10a\
+... rest of stderr output deleted ...
+         10q' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+  fi
+  rm -f conftest.er1 conftest.err
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; }
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5
+$as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; }
+if ${ac_cv_cxx_compiler_gnu+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+#ifndef __GNUC__
+       choke me
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_compiler_gnu=yes
+else
+  ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
+$as_echo "$ac_cv_cxx_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+  GXX=yes
+else
+  GXX=
+fi
+ac_test_CXXFLAGS=${CXXFLAGS+set}
+ac_save_CXXFLAGS=$CXXFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
+$as_echo_n "checking whether $CXX accepts -g... " >&6; }
+if ${ac_cv_prog_cxx_g+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+   ac_cxx_werror_flag=yes
+   ac_cv_prog_cxx_g=no
+   CXXFLAGS="-g"
+   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_prog_cxx_g=yes
+else
+  CXXFLAGS=""
+      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+
+else
+  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+	 CXXFLAGS="-g"
+	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+  ac_cv_prog_cxx_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
+$as_echo "$ac_cv_prog_cxx_g" >&6; }
+if test "$ac_test_CXXFLAGS" = set; then
+  CXXFLAGS=$ac_save_CXXFLAGS
+elif test $ac_cv_prog_cxx_g = yes; then
+  if test "$GXX" = yes; then
+    CXXFLAGS="-g -O2"
+  else
+    CXXFLAGS="-g"
+  fi
+else
+  if test "$GXX" = yes; then
+    CXXFLAGS="-O2"
+  else
+    CXXFLAGS=
+  fi
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+        fi
+    fi
+    if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RANLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$RANLIB"; then
+  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+RANLIB=$ac_cv_prog_RANLIB
+if test -n "$RANLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
+$as_echo "$RANLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_RANLIB"; then
+  ac_ct_RANLIB=$RANLIB
+  # Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_RANLIB+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_RANLIB"; then
+  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_RANLIB="ranlib"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
+if test -n "$ac_ct_RANLIB"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
+$as_echo "$ac_ct_RANLIB" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_RANLIB" = x; then
+    RANLIB=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    RANLIB=$ac_ct_RANLIB
+  fi
+else
+  RANLIB="$ac_cv_prog_RANLIB"
+fi
+
+    for ac_prog in as
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_AS+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $AS in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_AS="$AS" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_AS="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+AS=$ac_cv_path_AS
+if test -n "$AS"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AS" >&5
+$as_echo "$AS" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$AS" && break
+done
+test -n "$AS" || AS="$CC"
+
+    for ac_prog in ar
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $AR in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_AR="$AR" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_AR="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+AR=$ac_cv_path_AR
+if test -n "$AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+$as_echo "$AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$AR" && break
+done
+test -n "$AR" || AR="echo not_ar"
+
+    for ac_prog in ld link
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_LD+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $LD in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_LD="$LD" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_LD="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+LD=$ac_cv_path_LD
+if test -n "$LD"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$LD" && break
+done
+test -n "$LD" || LD="echo not_ld"
+
+    for ac_prog in strip
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_STRIP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $STRIP in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_STRIP="$STRIP" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_STRIP="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+STRIP=$ac_cv_path_STRIP
+if test -n "$STRIP"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$STRIP" && break
+done
+test -n "$STRIP" || STRIP="echo not_strip"
+
+    for ac_prog in windres
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_WINDRES+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $WINDRES in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_WINDRES="$WINDRES" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_WINDRES="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+WINDRES=$ac_cv_path_WINDRES
+if test -n "$WINDRES"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $WINDRES" >&5
+$as_echo "$WINDRES" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$WINDRES" && break
+done
+test -n "$WINDRES" || WINDRES="echo not_windres"
+
+    if test -z "$HOST_CC"; then
+        HOST_CC="$CC"
+    fi
+    if test -z "$HOST_CFLAGS"; then
+        HOST_CFLAGS="$CFLAGS"
+    fi
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+$as_echo_n "checking how to run the C preprocessor... " >&6; }
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+  CPP=
+fi
+if test -z "$CPP"; then
+  if ${ac_cv_prog_CPP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+      # Double quotes because CPP needs to be expanded
+    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+    do
+      ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+  break
+fi
+
+    done
+    ac_cv_prog_CPP=$CPP
+
+fi
+  CPP=$ac_cv_prog_CPP
+else
+  ac_cv_prog_CPP=$CPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+$as_echo "$CPP" >&6; }
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+  # Use a header file that comes with gcc, so configuring glibc
+  # with a fresh cross-compiler works.
+  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+  # <limits.h> exists even on freestanding compilers.
+  # On the NeXT, cc -E runs the code through the compiler's parser,
+  # not just through cpp. "Syntax error" is here to catch this case.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+		     Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+  # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+  # OK, works on sane cases.  Now check whether nonexistent headers
+  # can be detected and how.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+  # Broken: success on invalid input.
+continue
+else
+  # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+if test "$GCC" = "yes"; then
+    GNU_CC=1
+fi
+if test "$GXX" = "yes"; then
+    GNU_CXX=1
+fi
+if test "`echo | $AS -v 2>&1 | grep -c GNU`" != "0"; then
+    GNU_AS=1
+fi
+rm -f a.out
+
+case "$build:$target" in
+    i?86-apple-darwin*:powerpc-apple-darwin*)
+                                cross_compiling=yes
+        ;;
+esac
+
+if test "$cross_compiling"  = "yes"; then
+    CROSS_COMPILE=1
+else
+    CROSS_COMPILE=
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for gcc -pipe support" >&5
+$as_echo_n "checking for gcc -pipe support... " >&6; }
+if test -n "$GNU_CC" && test -n "$GNU_CXX" && test -n "$GNU_AS"; then
+    echo '#include <stdio.h>' > dummy-hello.c
+    echo 'int main() { printf("Hello World\n"); return 0; }' >> dummy-hello.c
+    ${CC} -S dummy-hello.c -o dummy-hello.s 2>&5
+    cat dummy-hello.s | ${AS} -o dummy-hello.S - 2>&5
+    if test $? = 0; then
+        _res_as_stdin="yes"
+    else
+        _res_as_stdin="no"
+    fi
+    if test "$_res_as_stdin" = "yes"; then
+        _SAVE_CFLAGS=$CFLAGS
+        CFLAGS="$CFLAGS -pipe"
+        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+ #include <stdio.h>
+int
+main ()
+{
+printf("Hello World\n");
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  _res_gcc_pipe="yes"
+else
+  _res_gcc_pipe="no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+        CFLAGS=$_SAVE_CFLAGS
+    fi
+    if test "$_res_as_stdin" = "yes" && test "$_res_gcc_pipe" = "yes"; then
+        _res="yes";
+        CFLAGS="$CFLAGS -pipe"
+        CXXFLAGS="$CXXFLAGS -pipe"
+    else
+        _res="no"
+    fi
+    rm -f dummy-hello.c dummy-hello.s dummy-hello.S dummy-hello a.out
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $_res" >&5
+$as_echo "$_res" >&6; }
+else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for pragma diagnostic" >&5
+$as_echo_n "checking for pragma diagnostic... " >&6; }
+if test "$GNU_CC" = "1"; then
+    cat >dummy-hello.c <<EOF
+#ifdef _PR_HAS_PRAGMA_DIAGNOSTIC
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
+#endif
+int main() {
+    char *dummy = "";
+    return 0;
+}
+EOF
+    ${CC} -Werror=unused-but-set-variable -S dummy-hello.c -o dummy-hello.s 2>&5
+    if test $? != 0; then
+        ${CC} -Werror=unused-but-set-variable -D_PR_HAS_PRAGMA_DIAGNOSTIC -S dummy-hello.c -o dummy-hello.s 2>&5
+        if test $? = 0; then
+            CFLAGS="$CFLAGS -D_PR_HAS_PRAGMA_DIAGNOSTIC=1"
+            _res=yes
+        else
+            _res=no
+        fi
+    else
+        _res=no
+    fi
+    rm -f dummy-hello.c dummy-hello.s
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $_res" >&5
+$as_echo "$_res" >&6; }
+else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+_SAVE_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -fprofile-generate -fprofile-correction"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler supports -fprofile-generate" >&5
+$as_echo_n "checking whether C compiler supports -fprofile-generate... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+   PROFILE_GEN_CFLAGS="-fprofile-generate"
+                 result="yes"
+else
+  result="no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $result" >&5
+$as_echo "$result" >&6; }
+
+if test $result = "yes"; then
+   PROFILE_GEN_LDFLAGS="-fprofile-generate"
+   PROFILE_USE_CFLAGS="-fprofile-use -fprofile-correction -Wcoverage-mismatch"
+   PROFILE_USE_LDFLAGS="-fprofile-use"
+fi
+
+CFLAGS="$_SAVE_CFLAGS"
+
+if test "$GNU_CC"; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for visibility(hidden) attribute" >&5
+$as_echo_n "checking for visibility(hidden) attribute... " >&6; }
+if ${ac_cv_visibility_hidden+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat > conftest.c <<EOF
+        int foo __attribute__ ((visibility ("hidden"))) = 1;
+EOF
+        ac_cv_visibility_hidden=no
+        if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
+            if grep '\.hidden.*foo' conftest.s >/dev/null; then
+                ac_cv_visibility_hidden=yes
+            fi
+        fi
+        rm -f conftest.cs
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_visibility_hidden" >&5
+$as_echo "$ac_cv_visibility_hidden" >&6; }
+    if test "$ac_cv_visibility_hidden" = "yes"; then
+        $as_echo "#define HAVE_VISIBILITY_HIDDEN_ATTRIBUTE 1" >>confdefs.h
+
+        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for visibility pragma support" >&5
+$as_echo_n "checking for visibility pragma support... " >&6; }
+if ${ac_cv_visibility_pragma+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat > conftest.c <<EOF
+#pragma GCC visibility push(hidden)
+            int foo_hidden = 1;
+#pragma GCC visibility push(default)
+            int foo_default = 1;
+EOF
+            ac_cv_visibility_pragma=no
+            if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
+                if grep '\.hidden.*foo_hidden' conftest.s >/dev/null; then
+                    if ! grep '\.hidden.*foo_default' conftest.s > /dev/null; then
+                        ac_cv_visibility_pragma=yes
+                    fi
+                fi
+            fi
+            rm -f conftest.cs
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_visibility_pragma" >&5
+$as_echo "$ac_cv_visibility_pragma" >&6; }
+        if test "$ac_cv_visibility_pragma" = "yes"; then
+            $as_echo "#define HAVE_VISIBILITY_PRAGMA 1" >>confdefs.h
+
+            # To work around a build problem on Linux x86-64 (Bugzilla bug
+            # 293438), we use the -fvisibility=hidden flag.  This flag is less
+            # optimal than #pragma GCC visibility push(hidden) because the flag
+            # assumes that symbols defined outside the current source file have
+            # the default visibility.  This has the advantage that we don't need
+            # to wrap system header files, but has the disadvantage that calls
+            # to hidden symbols defined in other source files cannot be
+            # optimized by the compiler.  The -fvisibility=hidden flag does
+            # hide and export symbols correctly.
+            #VISIBILITY_FLAGS='-I$(dist_includedir)/system_wrappers -include $(topsrcdir)/config/gcc_hidden.h'
+            #WRAP_SYSTEM_INCLUDES=1
+            VISIBILITY_FLAGS="-fvisibility=hidden"
+            WRAP_SYSTEM_INCLUDES=
+        fi
+    fi
+fi # GNU_CC
+
+fi # SKIP_COMPILER_CHECKS
+
+if test -z "$SKIP_PATH_CHECKS"; then
+    for ac_prog in perl5 perl
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_PERL+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $PERL in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PERL="$PERL" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_PERL="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PERL=$ac_cv_path_PERL
+if test -n "$PERL"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL" >&5
+$as_echo "$PERL" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$PERL" && break
+done
+test -n "$PERL" || PERL="echo not_perl"
+
+elif test -z "$PERL"; then
+    PERL=perl
+fi
+
+OBJ_SUFFIX=o
+LIB_SUFFIX=a
+DLL_SUFFIX=so
+ASM_SUFFIX=s
+MKSHLIB='$(LD) $(DSO_LDOPTS) -o $@'
+PR_MD_ASFILES=
+PR_MD_CSRCS=
+PR_MD_ARCH_DIR=unix
+AR_FLAGS='cr $@'
+AS='$(CC)'
+ASFLAGS='$(CFLAGS)'
+
+if test -n "$CROSS_COMPILE"; then
+    OS_ARCH=`echo $target_os | sed -e 's|/|_|g'`
+    OS_RELEASE=
+    OS_TEST="${target_cpu}"
+    case "${target_os}" in
+        linux*)       OS_ARCH=Linux ;;
+        solaris*)     OS_ARCH=SunOS OS_RELEASE=5 ;;
+        mingw*)       OS_ARCH=WINNT CPU_ARCH=x86 ;;
+        cygwin*)      OS_ARCH=WINNT ;;
+        darwin*)      OS_ARCH=Darwin ;;
+        riscos*)      OS_ARCH=RISCOS ;;
+    esac
+else
+    OS_ARCH=`uname -s | sed -e 's|/|_|g'`
+    OS_RELEASE=`uname -r`
+    OS_TEST=`uname -m`
+fi
+
+if test "$OS_ARCH" = "AIX"; then
+    OS_RELEASE=`uname -v`.`uname -r`
+fi
+
+if test "$OS_ARCH" = "FreeBSD"; then
+    OS_RELEASE=`echo $OS_RELEASE | sed 's/-.*//'`
+fi
+
+if test "$OS_ARCH" = "Linux"; then
+    OS_RELEASE=`echo $OS_RELEASE | sed 's/-.*//'`
+    OS_RELEASE=`echo $OS_RELEASE | awk -F\. '{ print $1 "." $2 }'`
+fi
+
+#######################################################################
+# Master "Core Components" macros for getting the OS target           #
+#######################################################################
+
+#
+# Note: OS_TARGET should be specified on the command line for gmake.
+# When OS_TARGET=WIN95 is specified, then a Windows 95 target is built.
+# The difference between the Win95 target and the WinNT target is that
+# the WinNT target uses Windows NT specific features not available
+# in Windows 95. The Win95 target will run on Windows NT, but (supposedly)
+# at lesser performance (the Win95 target uses threads; the WinNT target
+# uses fibers).
+#
+# If OS_TARGET is not specified, it defaults to $(OS_ARCH), i.e., no
+# cross-compilation.
+#
+
+#
+# The following hack allows one to build on a WIN95 machine (as if
+# s/he were cross-compiling on a WINNT host for a WIN95 target).
+# It also accomodates for MKS's uname.exe.  If you never intend
+# to do development on a WIN95 machine, you don't need this hack.
+#
+case "$OS_ARCH" in
+Windows_95)
+    OS_ARCH=Windows_NT
+    OS_TARGET=WIN95
+    ;;
+Windows_98)
+    OS_ARCH=Windows_NT
+    OS_TARGET=WIN95
+    ;;
+CYGWIN_9*|CYGWIN_ME*)
+    OS_ARCH='CYGWIN_NT-4.0'
+    OS_TARGET=WIN95
+    ;;
+OS_2)
+    OS_ARCH=OS2
+    OS_TARGET=OS2
+    ;;
+esac
+
+#
+# On WIN32, we also define the variable CPU_ARCH.
+#
+
+case "$OS_ARCH" in
+Windows_NT)
+#
+# If uname -s returns "Windows_NT", we assume that we are using
+# the uname.exe in MKS toolkit.
+#
+# The -r option of MKS uname only returns the major version number.
+# So we need to use its -v option to get the minor version number.
+# Moreover, it doesn't have the -p option, so we need to use uname -m.
+#
+    OS_ARCH=WINNT
+    OS_MINOR_RELEASE=`uname -v`
+    if test "$OS_MINOR_RELEASE" = "00"; then
+        OS_MINOR_RELEASE=0
+    fi
+    OS_RELEASE="${OS_RELEASE}.${OS_MINOR_RELEASE}"
+    CPU_ARCH=`uname -m`
+    #
+    # MKS's uname -m returns "586" on a Pentium machine.
+    #
+    if echo "$CPU_ARCH" | grep -c 86 >/dev/null; then
+        CPU_ARCH=x86
+    fi
+    ;;
+CYGWIN_NT*|MINGW*_NT*|MSYS_NT*)
+#
+# If uname -s returns "CYGWIN_NT-4.0", we assume that we are using
+# the uname.exe in the Cygwin tools.
+# If uname -s returns "MINGW32_NT-5.1", we assume that we are using
+# the uname.exe in the MSYS tools.
+# If uname -s returns "MSYS_NT-6.3", we assume that we are using
+# the uname.exe in the MSYS2 tools.
+#
+    OS_RELEASE=`expr $OS_ARCH : '.*NT-\(.*\)'`
+    OS_ARCH=WINNT
+    CPU_ARCH=`uname -m`
+    #
+    # Cygwin's uname -m returns "i686" on a Pentium Pro machine.
+    #
+    if echo "$CPU_ARCH" | grep -c 86 >/dev/null; then
+        CPU_ARCH=x86
+    fi
+    ;;
+esac
+
+if test -n "$MOZILLA_CLIENT" && test "$OS_ARCH" = "WINNT"; then
+    OS_TARGET=WIN95
+    if test -n "$MOZ_DEBUG" -a -z "$USE_DEBUG_RTL"; then
+        USE_DEBUG_RTL=1
+    fi
+fi
+if test -z "$OS_TARGET"; then
+    OS_TARGET=$OS_ARCH
+fi
+if test "$OS_TARGET" = "WIN95"; then
+    OS_RELEASE="4.0"
+fi
+OS_CONFIG="${OS_TARGET}${OS_RELEASE}"
+
+# Check whether --enable-os2-high-mem was given.
+if test "${enable_os2_high_mem+set}" = set; then :
+  enableval=$enable_os2_high_mem;  if test "$enableval" = "no"; then
+        MOZ_OS2_HIGH_MEMORY=
+      else
+        MOZ_OS2_HIGH_MEMORY=1
+      fi
+fi
+
+
+
+MOZ_ALIGN=toolchain-default
+
+case "$target" in
+arm*-android*|arm*-linuxandroid*)
+    MOZ_THUMB=yes
+    MOZ_ARCH=armv7-a
+    MOZ_FPU=vfp
+    MOZ_FLOAT_ABI=softfp
+    MOZ_SOFT_FLOAT=yes
+    MOZ_ALIGN=no
+    ;;
+arm*-*)
+    if test -n "$MOZ_PLATFORM_MAEMO"; then
+        MOZ_THUMB=no
+        MOZ_ARCH=armv7-a
+        MOZ_FLOAT_ABI=softfp
+    fi
+    if test "$MOZ_PLATFORM_MAEMO" = 6; then
+        MOZ_THUMB=yes
+    fi
+    ;;
+esac
+
+# Check whether --enable-thumb2 was given.
+if test "${enable_thumb2+set}" = set; then :
+  enableval=$enable_thumb2; MOZ_THUMB=$enableval
+fi
+
+
+
+# Check whether --with-thumb was given.
+if test "${with_thumb+set}" = set; then :
+  withval=$with_thumb; if test -z "$GNU_CC"; then
+        as_fn_error $? "--with-thumb is not supported on non-GNU toolchain-defaults" "$LINENO" 5
+    fi
+    MOZ_THUMB=$withval
+fi
+
+
+
+# Check whether --with-thumb-interwork was given.
+if test "${with_thumb_interwork+set}" = set; then :
+  withval=$with_thumb_interwork; if test -z "$GNU_CC"; then
+        as_fn_error $? "--with-thumb-interwork is not supported on non-GNU toolchain-defaults" "$LINENO" 5
+    fi
+    MOZ_THUMB_INTERWORK=$withval
+fi
+
+
+
+# Check whether --with-arch was given.
+if test "${with_arch+set}" = set; then :
+  withval=$with_arch; if test -z "$GNU_CC"; then
+        as_fn_error $? "--with-arch is not supported on non-GNU toolchain-defaults" "$LINENO" 5
+    fi
+    MOZ_ARCH=$withval
+fi
+
+
+
+# Check whether --with-fpu was given.
+if test "${with_fpu+set}" = set; then :
+  withval=$with_fpu; if test -z "$GNU_CC"; then
+        as_fn_error $? "--with-fpu is not supported on non-GNU toolchain-defaults" "$LINENO" 5
+    fi
+    MOZ_FPU=$withval
+fi
+
+
+
+# Check whether --with-float-abi was given.
+if test "${with_float_abi+set}" = set; then :
+  withval=$with_float_abi; if test -z "$GNU_CC"; then
+        as_fn_error $? "--with-float-abi is not supported on non-GNU toolchain-defaults" "$LINENO" 5
+    fi
+    MOZ_FLOAT_ABI=$withval
+fi
+
+
+
+# Check whether --with-soft-float was given.
+if test "${with_soft_float+set}" = set; then :
+  withval=$with_soft_float; if test -z "$GNU_CC"; then
+        as_fn_error $? "--with-soft-float is not supported on non-GNU toolchain-defaults" "$LINENO" 5
+    fi
+    MOZ_SOFT_FLOAT=$withval
+fi
+
+
+case "$MOZ_ARCH" in
+toolchain-default|"")
+    arch_flag=""
+    ;;
+*)
+    arch_flag="-march=$MOZ_ARCH"
+    ;;
+esac
+
+case "$MOZ_THUMB" in
+yes)
+    MOZ_THUMB2=1
+    thumb_flag="-mthumb"
+    ;;
+no)
+    MOZ_THUMB2=
+    thumb_flag="-marm"
+    ;;
+*)
+    _SAVE_CFLAGS="$CFLAGS"
+    CFLAGS="$arch_flag"
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+return sizeof(__thumb2__);
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  MOZ_THUMB2=1
+else
+  MOZ_THUMB2=
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+    CFLAGS="$_SAVE_CFLAGS"
+    thumb_flag=""
+    ;;
+esac
+
+case "$MOZ_THUMB_INTERWORK" in
+yes)
+    thumb_interwork_flag="-mthumb-interwork"
+    ;;
+no)
+    thumb_interwork_flag="-mno-thumb-interwork"
+    ;;
+*) # toolchain-default
+    thumb_interwork_flag=""
+    ;;
+esac
+
+case "$MOZ_FPU" in
+toolchain-default|"")
+    fpu_flag=""
+    ;;
+*)
+    fpu_flag="-mfpu=$MOZ_FPU"
+    ;;
+esac
+
+case "$MOZ_FLOAT_ABI" in
+toolchain-default|"")
+    float_abi_flag=""
+    ;;
+*)
+    float_abi_flag="-mfloat-abi=$MOZ_FLOAT_ABI"
+    ;;
+esac
+
+case "$MOZ_SOFT_FLOAT" in
+yes)
+    soft_float_flag="-msoft-float"
+    ;;
+no)
+    soft_float_flag="-mno-soft-float"
+    ;;
+*) # toolchain-default
+    soft_float_flag=""
+    ;;
+esac
+
+case "$MOZ_ALIGN" in
+toolchain-default|"")
+    align_flag=""
+    ;;
+no)
+    align_flag="-mno-unaligned-access"
+    ;;
+yes)
+    align_flag="-munaligned-access"
+    ;;
+*)
+    align_flag=""
+    ;;
+esac
+
+if test -n "$align_flag"; then
+  _SAVE_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS $align_flag"
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether alignment flag ($align_flag) is supported" >&5
+$as_echo_n "checking whether alignment flag ($align_flag) is supported... " >&6; }
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+  align_flag=""
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  CFLAGS="$_SAVE_CFLAGS"
+fi
+
+all_flags=`echo $arch_flag $thumb_flag $thumb_interwork_flag $fpu_flag $float_abi_flag $soft_float_flag $align_flag`
+if test -n "$all_flags"; then
+    _SAVE_CFLAGS="$CFLAGS"
+    CFLAGS="$all_flags"
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the chosen combination of compiler flags ($all_flags) works" >&5
+$as_echo_n "checking whether the chosen combination of compiler flags ($all_flags) works... " >&6; }
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+return 0;
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+  as_fn_error $? "no" "$LINENO" 5
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+    CFLAGS="$_SAVE_CFLAGS $all_flags"
+    CXXFLAGS="$CXXFLAGS $all_flags"
+    ASFLAGS="$ASFLAGS $all_flags"
+    if test -n "$thumb_flag"; then
+        LDFLAGS="$LDFLAGS $thumb_flag"
+    fi
+fi
+
+case "$host" in
+*-mingw*|*-msys*)
+    NSINSTALL=nsinstall
+    ;;
+*-cygwin*|*-mks*)
+    NSINSTALL='$(CYGWIN_WRAPPER) nsinstall'
+    if test `echo "${PATH}" | grep -c \;` = 0; then
+        CYGWIN_WRAPPER='sh $(topsrcdir)/build/cygwin-wrapper'
+    fi
+    ;;
+*os2*)
+    ;;
+*)
+    HOST_CFLAGS="$HOST_CFLAGS -DXP_UNIX"
+    ;;
+esac
+
+case "$target" in
+
+*-aix*)
+    $as_echo "#define XP_UNIX 1" >>confdefs.h
+
+    $as_echo "#define AIX 1" >>confdefs.h
+
+    $as_echo "#define SYSV 1" >>confdefs.h
+
+    DSO_LDOPTS='-brtl -bnortllib -bM:SRE -bnoentry -bexpall -blibpath:/usr/lib:/lib'
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
+if ${ac_cv_path_GREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -z "$GREP"; then
+  ac_path_GREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in grep ggrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_GREP" || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+  # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'GREP' >> "conftest.nl"
+    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_GREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_GREP="$ac_path_GREP"
+      ac_path_GREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_GREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_GREP"; then
+    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_GREP=$GREP
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+$as_echo "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+$as_echo_n "checking for egrep... " >&6; }
+if ${ac_cv_path_EGREP+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+   then ac_cv_path_EGREP="$GREP -E"
+   else
+     if test -z "$EGREP"; then
+  ac_path_EGREP_found=false
+  # Loop through the user's path and test for each of PROGNAME-LIST
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_prog in egrep; do
+    for ac_exec_ext in '' $ac_executable_extensions; do
+      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+      as_fn_executable_p "$ac_path_EGREP" || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+  # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+  ac_count=0
+  $as_echo_n 0123456789 >"conftest.in"
+  while :
+  do
+    cat "conftest.in" "conftest.in" >"conftest.tmp"
+    mv "conftest.tmp" "conftest.in"
+    cp "conftest.in" "conftest.nl"
+    $as_echo 'EGREP' >> "conftest.nl"
+    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+    as_fn_arith $ac_count + 1 && ac_count=$as_val
+    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+      # Best one so far, save it but keep looking for a better one
+      ac_cv_path_EGREP="$ac_path_EGREP"
+      ac_path_EGREP_max=$ac_count
+    fi
+    # 10*(2^10) chars as input seems more than enough
+    test $ac_count -gt 10 && break
+  done
+  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+      $ac_path_EGREP_found && break 3
+    done
+  done
+  done
+IFS=$as_save_IFS
+  if test -z "$ac_cv_path_EGREP"; then
+    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+  fi
+else
+  ac_cv_path_EGREP=$EGREP
+fi
+
+   fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+$as_echo "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
+$as_echo_n "checking for ANSI C header files... " >&6; }
+if ${ac_cv_header_stdc+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  ac_cv_header_stdc=yes
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "memchr" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "free" >/dev/null 2>&1; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+  if test "$cross_compiling" = yes; then :
+  :
+else
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <ctype.h>
+#include <stdlib.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+		   (('a' <= (c) && (c) <= 'i') \
+		     || ('j' <= (c) && (c) <= 'r') \
+		     || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+  int i;
+  for (i = 0; i < 256; i++)
+    if (XOR (islower (i), ISLOWER (i))
+	|| toupper (i) != TOUPPER (i))
+      return 2;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+else
+  ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+  conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
+$as_echo "$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+		  inttypes.h stdint.h unistd.h
+do :
+  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+ac_fn_c_check_header_mongrel "$LINENO" "sys/atomic_op.h" "ac_cv_header_sys_atomic_op_h" "$ac_includes_default"
+if test "x$ac_cv_header_sys_atomic_op_h" = xyes; then :
+  $as_echo "#define AIX_HAVE_ATOMIC_OP_H 1" >>confdefs.h
+
+fi
+
+
+    case "${target_os}" in
+    aix3.2*)
+        $as_echo "#define AIX_RENAME_SELECT 1" >>confdefs.h
+
+        $as_echo "#define _PR_NO_LARGE_FILES 1" >>confdefs.h
+
+        AIX_LINK_OPTS='-bnso -berok'
+        PR_MD_ASFILES=os_AIX.s
+        ;;
+    aix4.1*)
+        $as_echo "#define AIX_TIMERS 1" >>confdefs.h
+
+        $as_echo "#define _PR_NO_LARGE_FILES 1" >>confdefs.h
+
+        $as_echo "#define AIX4_1 1" >>confdefs.h
+
+        MKSHLIB=
+        DSO_LDOPTS=
+        AIX_LINK_OPTS='-bnso -berok'
+        LIBNSPR='-L$(dist_libdir) -lnspr$(MOD_MAJOR_VERSION)_shr'
+        LIBPLC='-L$(dist_libdir) -lplc$(MOD_MAJOR_VERSION)_shr'
+        ;;
+    aix4.2*)
+        $as_echo "#define AIX_TIMERS 1" >>confdefs.h
+
+        $as_echo "#define _PR_HAVE_OFF64_T 1" >>confdefs.h
+
+        AIX_LINK_OPTS='-brtl -bnso -berok'
+        ;;
+    aix4.3*)
+        $as_echo "#define AIX_TIMERS 1" >>confdefs.h
+
+        $as_echo "#define _PR_HAVE_OFF64_T 1" >>confdefs.h
+
+        $as_echo "#define AIX4_3_PLUS 1" >>confdefs.h
+
+        $as_echo "#define HAVE_SOCKLEN_T 1" >>confdefs.h
+
+        $as_echo "#define HAVE_FCNTL_FILE_LOCKING 1" >>confdefs.h
+
+        USE_IPV6=1
+        AIX_LINK_OPTS='-brtl -bnso -berok'
+        ;;
+    *)
+        $as_echo "#define AIX_TIMERS 1" >>confdefs.h
+
+        $as_echo "#define _PR_HAVE_OFF64_T 1" >>confdefs.h
+
+        $as_echo "#define AIX4_3_PLUS 1" >>confdefs.h
+
+        $as_echo "#define HAVE_SOCKLEN_T 1" >>confdefs.h
+
+        $as_echo "#define HAVE_FCNTL_FILE_LOCKING 1" >>confdefs.h
+
+        USE_IPV6=1
+        AIX_LINK_OPTS='-brtl -bnso -berok'
+        ;;
+    esac
+    CFLAGS="$CFLAGS -qro -qroconst"
+    AIX_WRAP='$(DIST)/lib/aixwrap.o'
+    AIX_TMP='./_aix_tmp.o'
+    if test -n "$USE_64"; then
+        MDCPUCFG_H=_aix64.cfg
+        OBJECT_MODE=64
+    else
+        MDCPUCFG_H=_aix32.cfg
+    fi
+    PR_MD_CSRCS=aix.c
+    RESOLVE_LINK_SYMBOLS=1
+    ;;
+
+*-bsdi*)
+    $as_echo "#define XP_UNIX 1" >>confdefs.h
+
+    $as_echo "#define BSDI 1" >>confdefs.h
+
+    $as_echo "#define NEED_BSDREGEX 1" >>confdefs.h
+
+
+    CFLAGS="$CFLAGS -Wall -Wno-format"
+    CXXFLAGS="$CXXFLAGS -Wall -Wno-format"
+
+    if echo "$OS_TEST" | grep -c 86 >/dev/null; then
+        CPU_ARCH=x86
+    elif echo "$OS_TEST" | grep -c sparc >/dev/null; then
+        CPU_ARCH=sparc
+    fi
+
+    MDCPUCFG_H=_bsdi.cfg
+    PR_MD_CSRCS=bsdi.c
+
+    DSO_LDOPTS=-r
+
+    case "$target_os" in
+    bsdi1.1*)
+        $as_echo "#define _PR_BSDI_JMPBUF_IS_ARRAY 1" >>confdefs.h
+
+        $as_echo "#define _PR_STAT_HAS_ONLY_ST_ATIME 1" >>confdefs.h
+
+        $as_echo "#define _PR_NEED_H_ERRNO 1" >>confdefs.h
+
+        MKSHLIB=
+        DSO_CFLAGS=
+        DSO_LDOPTS=
+        ;;
+
+    bsdi2.1*)
+        $as_echo "#define _PR_TIMESPEC_HAS_TS_SEC 1" >>confdefs.h
+
+        $as_echo "#define _PR_BSDI_JMPBUF_IS_ARRAY 1" >>confdefs.h
+
+        $as_echo "#define HAVE_DLL 1" >>confdefs.h
+
+        $as_echo "#define USE_DLFCN 1" >>confdefs.h
+
+        $as_echo "#define _PR_STAT_HAS_ST_ATIMESPEC 1" >>confdefs.h
+
+        PR_MD_ASFILES=os_BSD_OS_386_2.s
+        ;;
+
+    bsdi4.* | bsdi5.*)
+        $as_echo "#define _PR_SELECT_CONST_TIMEVAL 1" >>confdefs.h
+
+        $as_echo "#define _PR_BSDI_JMPBUF_IS_STRUCT 1" >>confdefs.h
+
+        $as_echo "#define HAVE_DLL 1" >>confdefs.h
+
+        $as_echo "#define USE_DLFCN 1" >>confdefs.h
+
+        $as_echo "#define _PR_STAT_HAS_ST_ATIMESPEC 1" >>confdefs.h
+
+        MKSHLIB='$(CC) -o $@ $(DSO_LDOPTS)'
+        DSO_CFLAGS=-fPIC
+        DSO_LDOPTS='-shared -Wl,-soname,$(@:$(OBJDIR)/%.so=%.so)'
+        STRIP="$STRIP -d"
+        case "$target_os" in
+        bsdi4.2* | bsdi4.3* | bsdi5.*)
+            $as_echo "#define _PR_HAVE_GETPROTO_R 1" >>confdefs.h
+
+            $as_echo "#define _PR_HAVE_GETPROTO_R_POINTER 1" >>confdefs.h
+
+            ;;
+        esac
+        ;;
+    *)
+        $as_echo "#define _PR_SELECT_CONST_TIMEVAL 1" >>confdefs.h
+
+        $as_echo "#define _PR_BSDI_JMPBUF_IS_STRUCT 1" >>confdefs.h
+
+        $as_echo "#define HAVE_DLL 1" >>confdefs.h
+
+        $as_echo "#define USE_DLFCN 1" >>confdefs.h
+
+        $as_echo "#define _PR_STAT_HAS_ST_ATIMESPEC 1" >>confdefs.h
+
+        ;;
+    esac
+
+    ;;
+
+*-darwin*)
+    $as_echo "#define XP_UNIX 1" >>confdefs.h
+
+    $as_echo "#define DARWIN 1" >>confdefs.h
+
+    $as_echo "#define HAVE_BSD_FLOCK 1" >>confdefs.h
+
+    $as_echo "#define HAVE_SOCKLEN_T 1" >>confdefs.h
+
+    $as_echo "#define HAVE_POINTER_LOCALTIME_R 1" >>confdefs.h
+
+
+    HOST_DARWIN_MAJOR=`echo "$build_os" | sed -E -e 's/^darwin([0-9]+).*$/\1/'`
+
+    if test "$HOST_DARWIN_MAJOR" -ge 15 ; then
+        $as_echo "#define HAS_CONNECTX 1" >>confdefs.h
+
+    fi
+    AS='$(CC) -x assembler-with-cpp'
+    CFLAGS="$CFLAGS -Wall -fno-common"
+    case "${target_cpu}" in
+        arm*)
+            CPU_ARCH=arm
+            ;;
+        i*86*|x86_64)
+            if test -n "$USE_64"; then
+                CPU_ARCH=x86_64
+            else
+                CPU_ARCH=i386
+            fi
+            ;;
+        aarch64)
+            CPU_ARCH=aarch64
+            ;;
+        *)
+            CPU_ARCH=ppc
+            ;;
+    esac
+    if test "`echo $CC | grep -c '\-arch '`" = "0"; then
+        case "$CPU_ARCH" in
+        aarch64)
+            CC="$CC -arch arm64"
+            ;;
+        *)
+            CC="$CC -arch $CPU_ARCH"
+            ;;
+        esac
+    fi
+    ac_fn_c_check_header_mongrel "$LINENO" "crt_externs.h" "ac_cv_header_crt_externs_h" "$ac_includes_default"
+if test "x$ac_cv_header_crt_externs_h" = xyes; then :
+  $as_echo "#define HAVE_CRT_EXTERNS_H 1" >>confdefs.h
+
+fi
+
+
+    DSO_CFLAGS=-fPIC
+    DSO_LDOPTS='-dynamiclib -compatibility_version 1 -current_version 1 -all_load -install_name @executable_path/$@ -headerpad_max_install_names'
+    _OPTIMIZE_FLAGS=-O2
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
+    STRIP="$STRIP -x -S"
+    DLL_SUFFIX=dylib
+    USE_PTHREADS=1
+    MDCPUCFG_H=_darwin.cfg
+    PR_MD_CSRCS=darwin.c
+    PR_MD_ASFILES=os_Darwin.s
+
+    if test -n "$_MACOSX_DEPLOYMENT_TARGET" ; then
+                export MACOSX_DEPLOYMENT_TARGET=$_MACOSX_DEPLOYMENT_TARGET
+    elif test -z "$MACOSX_DEPLOYMENT_TARGET" ; then
+                                case "${target_cpu}" in
+            powerpc*)
+                                export MACOSX_DEPLOYMENT_TARGET=10.3
+                ;;
+            i*86*)
+                                export MACOSX_DEPLOYMENT_TARGET=10.4
+                ;;
+        esac
+    fi
+
+
+    if test "$MACOS_SDK_DIR"; then
+
+        if test ! -d "$MACOS_SDK_DIR"; then
+            as_fn_error $? "SDK not found.  When using --with-macos-sdk, you must
+specify a valid SDK.  SDKs are installed when the optional cross-development
+tools are selected during the Xcode/Developer Tools installation." "$LINENO" 5
+        fi
+
+
+        CC_VERSION=`$CC -v 2>&1 | grep 'gcc version'`
+        GCC_VERSION_FULL=`echo $CC_VERSION | $PERL -pe 's/^.*gcc version ([^ ]*).*/$1/'`
+        GCC_VERSION=`echo $GCC_VERSION_FULL | $PERL -pe '(split(/\./))[0]>=4&&s/(^\d*\.\d*).*/$1/;'`
+
+        GCC_VERSION_MAJOR=`echo $GCC_VERSION_FULL | $PERL -pe 's/(^\d*).*/$1/;'`
+        if test "$GCC_VERSION_MAJOR" -lt "4" ; then
+            SDK_C_FRAMEWORK="-F${MACOS_SDK_DIR}/System/Library/Frameworks"
+            if test -d "${MACOS_SDK_DIR}/Library/Frameworks" ; then
+                SDK_C_FRAMEWORK="$SDK_C_FRAMEWORK -F${MACOS_SDK_DIR}/Library/Frameworks"
+            fi
+
+            SDK_C_INCLUDE="-isystem ${MACOS_SDK_DIR}/usr/include/gcc/darwin/${GCC_VERSION} -isystem ${MACOS_SDK_DIR}/usr/include ${SDK_C_FRAMEWORK}"
+
+            CFLAGS="$CFLAGS -nostdinc ${SDK_C_INCLUDE}"
+
+                        CPP="$CPP -nostdinc ${SDK_C_INCLUDE}"
+
+
+            HOST_DARWIN_MAJOR=`echo "$build_os" | sed -E -e 's/^darwin([0-9]+).*$/\1/'`
+
+            if test "$HOST_DARWIN_MAJOR" -lt 9 ; then
+                                                                                                MACOS_SDK_LIBS="-L${MACOS_SDK_DIR}/usr/lib/gcc/darwin -L${MACOS_SDK_DIR}/usr/lib/gcc/darwin/${GCC_VERSION_FULL} -L${MACOS_SDK_DIR}/usr/lib ${SDK_C_FRAMEWORK}"
+            else
+                                                                                                                                                                MACOS_SDK_LIBS="-Wl,-syslibroot,${MACOS_SDK_DIR}"
+            fi
+
+            LDFLAGS="${MACOS_SDK_LIBS} $LDFLAGS"
+            export NEXT_ROOT=$MACOS_SDK_DIR
+
+            if test -n "$CROSS_COMPILE" ; then
+                                                                HOST_CC="NEXT_ROOT= $HOST_CC"
+                HOST_CXX="NEXT_ROOT= $HOST_CXX"
+            fi
+        else
+                                    CFLAGS="$CFLAGS -isysroot ${MACOS_SDK_DIR}"
+
+                        CPP="$CPP -isysroot ${MACOS_SDK_DIR}"
+
+                                                            if test "$GCC_VERSION_FULL" != "4.0.0" ; then
+                                                LDFLAGS="$LDFLAGS -isysroot ${MACOS_SDK_DIR}"
+            else
+                                                LDFLAGS="$LDFLAGS -Wl,-syslibroot,${MACOS_SDK_DIR}"
+            fi
+        fi
+    fi
+    ;;
+
+*-freebsd*)
+    if test -z "$USE_NSPR_THREADS"; then
+        USE_PTHREADS=1
+    fi
+    $as_echo "#define XP_UNIX 1" >>confdefs.h
+
+    $as_echo "#define FREEBSD 1" >>confdefs.h
+
+    $as_echo "#define HAVE_BSD_FLOCK 1" >>confdefs.h
+
+    $as_echo "#define HAVE_SOCKLEN_T 1" >>confdefs.h
+
+    $as_echo "#define HAVE_POINTER_LOCALTIME_R 1" >>confdefs.h
+
+    CFLAGS="$CFLAGS $(DSO_CFLAGS) -ansi -Wall"
+    MOZ_OBJFORMAT=`test -x /usr/bin/objformat && /usr/bin/objformat || echo elf`
+    if test "$MOZ_OBJFORMAT" = "elf"; then
+        DLL_SUFFIX=so
+    else
+        DLL_SUFFIX=so.1.0
+    fi
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
+    DSO_CFLAGS=-fPIC
+    DSO_LDOPTS='-shared -Wl,-soname -Wl,$(notdir $@)'
+    MDCPUCFG_H=_freebsd.cfg
+    PR_MD_CSRCS=freebsd.c
+    ;;
+
+*-hpux*)
+    $as_echo "#define XP_UNIX 1" >>confdefs.h
+
+    $as_echo "#define HPUX 1" >>confdefs.h
+
+    $as_echo "#define _HPUX_SOURCE 1" >>confdefs.h
+
+    # HPUX report the POLLHUP event for a socket when the
+    # shutdown(SHUT_WR) operation is called for the remote end, even though
+    # the socket is still writeable. Use select(), instead of poll(), to
+    # workaround this problem.
+    $as_echo "#define _PR_POLL_WITH_SELECT 1" >>confdefs.h
+
+    $as_echo "#define _USE_BIG_FDS 1" >>confdefs.h
+
+    DSO_LDOPTS='-b +h $(notdir $@)'
+    PR_MD_CSRCS=hpux.c
+    if test "$OS_TEST" = "ia64"; then
+        DLL_SUFFIX=so
+        DSO_LDOPTS="$DSO_LDOPTS +b '\$\$ORIGIN'"
+        CPU_ARCH_TAG=_$OS_TEST
+        if test -z "$USE_64"; then
+            COMPILER_TAG=_32
+        fi
+        PR_MD_ASFILES=os_HPUX_ia64.s
+    else
+        $as_echo "#define hppa 1" >>confdefs.h
+
+        DLL_SUFFIX=sl
+        PR_MD_ASFILES=os_HPUX.s
+    fi
+    if test -n "$USE_64"; then
+        MDCPUCFG_H=_hpux64.cfg
+    else
+        MDCPUCFG_H=_hpux32.cfg
+    fi
+    if test -z "$GNU_CC"; then
+        CC="$CC -Ae"
+        CXX="$CXX -ext"
+        DSO_CFLAGS=+Z
+    else
+        DSO_CFLAGS=-fPIC
+        ASFLAGS="$ASFLAGS -x assembler-with-cpp"
+    fi
+
+    if test -n "$MOZILLA_CLIENT"; then
+        DEFAULT_IMPL_STRATEGY=_EMU
+    fi
+
+    if echo "$OS_RELEASE" | grep ^A.09 >/dev/null; then
+        $as_echo "#define _PR_NEED_H_ERRNO 1" >>confdefs.h
+
+        $as_echo "#define HPUX9 1" >>confdefs.h
+
+        DEFAULT_IMPL_STRATEGY=_EMU
+    	USE_NSPR_THREADS=1
+    fi
+
+    if echo "$OS_RELEASE" | egrep '^(A.09|B.10)' >/dev/null; then
+        $as_echo "#define _PR_NO_LARGE_FILES 1" >>confdefs.h
+
+    fi
+
+    if echo "$OS_RELEASE" | egrep '^(B.10.10|B.10.20)' >/dev/null; then
+        $as_echo "#define _PR_NEED_H_ERRNO 1" >>confdefs.h
+
+    fi
+
+    if echo "$OS_RELEASE" | egrep '^(B.10.10|B.10.20)' >/dev/null; then
+        $as_echo "#define HAVE_INT_LOCALTIME_R 1" >>confdefs.h
+
+    fi
+
+    if echo "$OS_RELEASE" | egrep '^(B.10.30|B.11)' >/dev/null; then
+        $as_echo "#define HAVE_POINTER_LOCALTIME_R 1" >>confdefs.h
+
+    fi
+
+    # HP-UX 11i v2 (B.11.23) or higher
+
+    case "$OS_RELEASE" in
+    [C-Z]*|B.[2-9]*|B.1[2-9]*|B.11.[3-9]*|B.11.2[3-9]*)
+        USE_IPV6=1
+        ;;
+    esac
+
+
+    if test "$OS_RELEASE" = "B.10.01"; then
+        $as_echo "#define HPUX10 1" >>confdefs.h
+
+        DEFAULT_IMPL_STRATEGY=_EMU
+    fi
+
+    if test "$OS_RELEASE" = "B.10.10"; then
+        $as_echo "#define HPUX10 1" >>confdefs.h
+
+        $as_echo "#define HPUX10_10 1" >>confdefs.h
+
+        DEFAULT_IMPL_STRATEGY=_PTH
+    fi
+
+    if test "$OS_RELEASE" = "B.10.20"; then
+        $as_echo "#define HPUX10 1" >>confdefs.h
+
+        $as_echo "#define HPUX10_20 1" >>confdefs.h
+
+        if test -z "$GNU_CC"; then
+            CFLAGS="$CFLAGS +DAportable +DS1.1"
+            CXXFLAGS="$CXXFLAGS +DAportable +DS1.1"
+        fi
+        DEFAULT_IMPL_STRATEGY=_PTH
+    fi
+
+    if test "$OS_RELEASE" = "B.10.30"; then
+        $as_echo "#define HPUX10 1" >>confdefs.h
+
+        $as_echo "#define HPUX10_30 1" >>confdefs.h
+
+        if test -z "$GNU_CC"; then
+            CFLAGS="$CFLAGS +DAportable +DS1.1"
+            CXXFLAGS="$CXXFLAGS +DAportable +DS1.1"
+        fi
+        DEFAULT_IMPL_STRATEGY=_PTH
+    fi
+
+    if echo "$OS_RELEASE" | grep ^B.11 >/dev/null; then
+        $as_echo "#define HPUX10 1" >>confdefs.h
+
+        $as_echo "#define HPUX11 1" >>confdefs.h
+
+        $as_echo "#define _LARGEFILE64_SOURCE 1" >>confdefs.h
+
+        $as_echo "#define _PR_HAVE_OFF64_T 1" >>confdefs.h
+
+        $as_echo "#define HAVE_FCNTL_FILE_LOCKING 1" >>confdefs.h
+
+        if test -z "$GNU_CC"; then
+            if test -z "$USE_64"; then
+                if test "$OS_TEST" = "ia64"; then
+                    CFLAGS="$CFLAGS +DD32"
+                    CXXFLAGS="$CXXFLAGS +DD32"
+                else
+                    CFLAGS="$CFLAGS +DAportable +DS2.0"
+                    CXXFLAGS="$CXXFLAGS +DAportable +DS2.0"
+                fi
+            else
+                if test "$OS_TEST" = "ia64"; then
+                    CFLAGS="$CFLAGS +DD64"
+                    CXXFLAGS="$CXXFLAGS +DD64"
+                else
+                    CFLAGS="$CFLAGS +DA2.0W +DS2.0"
+                    CXXFLAGS="$CXXFLAGS +DA2.0W +DS2.0"
+                fi
+            fi
+        fi
+        DEFAULT_IMPL_STRATEGY=_PTH
+    fi
+
+    if test "$DEFAULT_IMPL_STRATEGY" = "_EMU"; then
+        USE_NSPR_THREADS=1
+        USE_PTHREADS=
+        USE_USER_PTHREADS=
+    elif test "$DEFAULT_IMPL_STRATEGY" = "_PTH"; then
+        USE_PTHREADS=1
+        if test "$USE_NSPR_THREADS"; then
+            USE_PTHREADS=
+        fi
+        if test "$USE_USER_PTHREADS"; then
+            USE_PTHREADS=
+        fi
+    fi
+    ;;
+
+*-linux*|*-gnu*|*-k*bsd*-gnu|*-android*|*-linuxandroid*)
+    if test -z "$USE_NSPR_THREADS"; then
+        USE_PTHREADS=1
+        IMPL_STRATEGY=_PTH
+    fi
+    $as_echo "#define XP_UNIX 1" >>confdefs.h
+
+    $as_echo "#define _GNU_SOURCE 1" >>confdefs.h
+
+    $as_echo "#define HAVE_FCNTL_FILE_LOCKING 1" >>confdefs.h
+
+    $as_echo "#define HAVE_POINTER_LOCALTIME_R 1" >>confdefs.h
+
+    case "${target}" in
+    *-android*|*-linuxandroid*)
+        OS_TARGET=Android
+        $as_echo "#define LINUX 1" >>confdefs.h
+
+        ;;
+    *-linux*)
+        $as_echo "#define LINUX 1" >>confdefs.h
+
+        ;;
+    esac
+    CFLAGS="$CFLAGS -Wall"
+    CXXFLAGS="$CXXFLAGS -Wall"
+    MDCPUCFG_H=_linux.cfg
+    PR_MD_CSRCS=linux.c
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
+    DSO_CFLAGS=-fPIC
+    DSO_LDOPTS='-shared -Wl,-soname -Wl,$(notdir $@)'
+    _OPTIMIZE_FLAGS=-O2
+    _DEBUG_FLAGS="-g -fno-inline"  # most people on linux use gcc/gdb, and that
+                                   # combo is not yet good at debugging inlined
+                                   # functions (even when using DWARF2 as the
+                                   # debugging format)
+    COMPILER_TAG=_glibc
+    if echo "$OS_TEST" | grep -c 86 >/dev/null; then
+        CPU_ARCH=x86
+    else
+        CPU_ARCH=$OS_TEST
+    fi
+    CPU_ARCH_TAG=_${CPU_ARCH}
+    case "${target_cpu}" in
+    alpha)
+        $as_echo "#define _ALPHA_ 1" >>confdefs.h
+
+        $as_echo "#define __alpha 1" >>confdefs.h
+
+        CFLAGS="$CFLAGS -mieee"
+        CXXFLAGS="$CXXFLAGS -mieee"
+        ;;
+    i*86)
+        $as_echo "#define i386 1" >>confdefs.h
+
+        PR_MD_ASFILES=os_Linux_x86.s
+        ;;
+    ia64)
+        PR_MD_ASFILES=os_Linux_ia64.s
+        ;;
+    x86_64)
+        if test -n "$USE_64"; then
+            PR_MD_ASFILES=os_Linux_x86_64.s
+        elif test -n "$USE_X32"; then
+            PR_MD_ASFILES=os_Linux_x86_64.s
+            CC="$CC -mx32"
+            CXX="$CXX -mx32"
+        else
+            $as_echo "#define i386 1" >>confdefs.h
+
+            PR_MD_ASFILES=os_Linux_x86.s
+            CC="$CC -m32"
+            CXX="$CXX -m32"
+        fi
+        ;;
+    ppc|powerpc)
+        PR_MD_ASFILES=os_Linux_ppc.s
+        ;;
+    powerpc64)
+        if test -n "$USE_64"; then
+            CC="$CC -m64"
+            CXX="$CXX -m64"
+        else
+            PR_MD_ASFILES=os_Linux_ppc.s
+        fi
+        ;;
+    esac
+    ;;
+
+*-mingw*|*-msys*|*-cygwin*|*-mks*)
+    $as_echo "#define XP_PC 1" >>confdefs.h
+
+    $as_echo "#define WIN32 1" >>confdefs.h
+
+    PR_MD_ARCH_DIR=windows
+    RESOLVE_LINK_SYMBOLS=1
+
+    if test -n "$GNU_CC"; then
+        CC="$CC -mwindows"
+        CXX="$CXX -mwindows"
+        DLL_SUFFIX=dll
+        MKSHLIB='$(CC) -shared -Wl,--export-all-symbols -Wl,--out-implib -Wl,$(IMPORT_LIBRARY) $(DLLBASE) -o $(subst $(OBJDIR)/,,$(SHARED_LIBRARY))'
+        RC=$WINDRES
+        # Use temp file for windres (bug 213281)
+        RCFLAGS='-O coff --use-temp-file'
+    else
+        LD=link
+        AR='lib -NOLOGO -OUT:"$@"'
+        AR_FLAGS=
+        RANLIB='echo not_ranlib'
+        STRIP='echo not_strip'
+        RC=rc.exe
+        GARBAGE='$(OBJDIR)/vc20.pdb $(OBJDIR)/vc40.pdb'
+        OBJ_SUFFIX=obj
+        LIB_SUFFIX=lib
+        DLL_SUFFIX=dll
+
+        # Determine compiler version
+
+        _MSVC_VER_FILTER='s|.* \([0-9]\+\.[0-9]\+\.[0-9]\+\(\.[0-9]\+\)\?\).*|\1|p'
+
+        CC_VERSION=`${CC} -v 2>&1 | sed -ne "$_MSVC_VER_FILTER"`
+        if test -z "$CC_VERSION"; then
+            as_fn_error $? "Could not determine MSC version." "$LINENO" 5
+        fi
+
+        _CC_MAJOR_VERSION=`echo ${CC_VERSION} | awk -F\. '{ print $1 }'`
+        _CC_MINOR_VERSION=`echo ${CC_VERSION} | awk -F\. '{ print $2 }'`
+        _CC_RELEASE=`echo ${CC_VERSION} | awk -F\. '{ print $3 }'`
+        _CC_BUILD=`echo ${CC_VERSION} | awk -F\. '{ print $4 }'`
+        MSC_VER=${_CC_MAJOR_VERSION}${_CC_MINOR_VERSION}
+
+        if test "$_CC_MAJOR_VERSION" -eq "14"; then
+                                            if test $_CC_RELEASE -gt 50727; then
+              _USE_DYNAMICBASE=1
+           elif test $_CC_BUILD -ge 762; then
+              _USE_DYNAMICBASE=1
+           fi
+           $as_echo "#define _CRT_SECURE_NO_DEPRECATE 1" >>confdefs.h
+
+           $as_echo "#define _CRT_NONSTDC_NO_DEPRECATE 1" >>confdefs.h
+
+        elif test $_CC_MAJOR_VERSION -ge 15; then
+           _USE_DYNAMICBASE=1
+           $as_echo "#define _CRT_SECURE_NO_WARNINGS 1" >>confdefs.h
+
+           $as_echo "#define _CRT_NONSTDC_NO_WARNINGS 1" >>confdefs.h
+
+        fi
+
+        if test -n "$_USE_DYNAMICBASE"; then
+           DLLFLAGS="$DLLFLAGS -DYNAMICBASE"
+        fi
+
+        # Ensure that mt is Microsoft (R) Manifest Tool and not magnetic
+        # tape manipulation utility (or something else)
+        if test "$MSC_VER" -ge "1400"; then
+
+            _MSMT_VER_FILTER='s|.* \([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*|\1|p'
+
+
+            MSMT_TOOL=`mt 2>&1|grep 'Microsoft (R) Manifest Tool'`
+            if test -n "$MSMT_TOOL"; then
+                MSMANIFEST_TOOL_VERSION=`echo ${MSMT_TOOL}|sed -ne "$_MSMT_VER_FILTER"`
+                if test -z "$MSMANIFEST_TOOL_VERSION"; then
+                    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Unknown version of the Microsoft (R) Manifest Tool." >&5
+$as_echo "$as_me: WARNING: Unknown version of the Microsoft (R) Manifest Tool." >&2;}
+                fi
+                MT=mt
+                unset MSMT_TOOL
+            else
+                as_fn_error $? "Microsoft (R) Manifest Tool must be in your \$PATH." "$LINENO" 5
+            fi
+        fi
+
+        CFLAGS="$CFLAGS -W3 -nologo -GF -Gy"
+        DLLFLAGS="$DLLFLAGS -OUT:\"\$@\""
+        _DEBUG_FLAGS=-Zi
+        _OPTIMIZE_FLAGS=-O2
+
+        PROFILE_GEN_CFLAGS="-GL"
+        PROFILE_GEN_LDFLAGS="-LTCG:PGINSTRUMENT"
+        PROFILE_USE_CFLAGS="-GL -wd4624 -wd4952"
+        PROFILE_USE_LDFLAGS="-LTCG:PGUPDATE"
+
+        if test "$MSC_VER" -ge "1800"; then
+                                                CFLAGS="$CFLAGS -FS"
+                                    PROFILE_GEN_CFLAGS="$PROFILE_GEN_CFLAGS -Gw"
+            PROFILE_USE_CFLAGS="$PROFILE_USE_CFLAGS -Gw"
+        fi
+
+        if test -z "$MOZ_OPTIMIZE"; then
+            CFLAGS="$CFLAGS -Od"
+        fi
+
+        if test "$USE_DEBUG_RTL" = 1; then
+            if test -n "$USE_STATIC_RTL"; then
+                CFLAGS="$CFLAGS -MTd"
+            else
+                CFLAGS="$CFLAGS -MDd"
+            fi
+        else
+            if test -n "$USE_STATIC_RTL"; then
+                CFLAGS="$CFLAGS -MT"
+            else
+                CFLAGS="$CFLAGS -MD"
+            fi
+        fi
+
+        if test -n "$MOZ_DEBUG"; then
+            $as_echo "#define _DEBUG 1" >>confdefs.h
+
+        else
+            DEFINES="$DEFINES -U_DEBUG"
+        fi
+
+        if test -n "$MOZ_DEBUG_SYMBOLS"; then
+            if test -n "$MOZ_OPTIMIZE"; then
+                DLLFLAGS="$DLLFLAGS -DEBUG -OPT:REF"
+                LDFLAGS="$LDFLAGS -DEBUG -OPT:REF"
+            else
+                DLLFLAGS="$DLLFLAGS -DEBUG"
+                LDFLAGS="$LDFLAGS -DEBUG"
+            fi
+        fi
+
+        OS_DLLFLAGS="-nologo -DLL -SUBSYSTEM:WINDOWS"
+        if test "$MSC_VER" -le "1200" -a -z "$MOZ_DEBUG_SYMBOLS"; then
+            OS_DLLFLAGS="$OS_DLLFLAGS -PDB:NONE"
+        fi
+
+        if test "$OS_TARGET" = "WINNT"; then
+            CFLAGS="$CFLAGS -GT"
+            LIBNSPR='$(dist_libdir)/libnspr$(MOD_MAJOR_VERSION).$(LIB_SUFFIX)'
+            LIBPLC='$(dist_libdir)/libplc$(MOD_MAJOR_VERSION).$(LIB_SUFFIX)'
+        else
+            LIBNSPR='$(dist_libdir)/nspr$(MOD_MAJOR_VERSION).$(LIB_SUFFIX)'
+            LIBPLC='$(dist_libdir)/plc$(MOD_MAJOR_VERSION).$(LIB_SUFFIX)'
+        fi
+    fi # GNU_CC
+
+    if test -n "$USE_STATIC_TLS"; then
+        $as_echo "#define _PR_USE_STATIC_TLS 1" >>confdefs.h
+
+    fi
+
+    if test "$OS_TARGET" = "WINNT"; then
+        $as_echo "#define WINNT 1" >>confdefs.h
+
+    else
+        $as_echo "#define WIN95 1" >>confdefs.h
+
+        # undefine WINNT as some versions of mingw gcc define it by default
+        DEFINES="$DEFINES -UWINNT"
+        $as_echo "#define _PR_GLOBAL_THREADS_ONLY 1" >>confdefs.h
+
+    fi
+
+    if test "$CPU_ARCH" = "x86"; then
+        CPU_ARCH_TAG=
+    else
+        CPU_ARCH_TAG=$CPU_ARCH
+    fi
+
+    if test "$USE_DEBUG_RTL" = 1; then
+        OBJDIR_SUFFIX=OBJD
+    fi
+
+    case "$OS_TARGET" in
+    WINNT)
+	    MDCPUCFG_H=_winnt.cfg
+	    ;;
+    WIN95)
+	    MDCPUCFG_H=_win95.cfg
+	    ;;
+    *)
+	    as_fn_error $? "Missing OS_TARGET for ${target}.  Use --enable-win32-target to set." "$LINENO" 5
+   	;;
+    esac
+
+    case "$target_cpu" in
+    i*86)
+	if test -n "$USE_64"; then
+	    $as_echo "#define _AMD64_ 1" >>confdefs.h
+
+	else
+	    $as_echo "#define _X86_ 1" >>confdefs.h
+
+            if test -z "$GNU_CC" -a "$MSC_VER" -ge "1700"; then
+                                                CFLAGS="$CFLAGS -arch:IA32"
+            fi
+	fi
+        ;;
+    x86_64)
+	    $as_echo "#define _AMD64_ 1" >>confdefs.h
+
+	    USE_64=1
+	    ;;
+    aarch64)
+	    $as_echo "#define _ARM64_ 1" >>confdefs.h
+
+	    USE_64=1
+	    ;;
+    ia64)
+	    $as_echo "#define _IA64_ 1" >>confdefs.h
+
+	    USE_64=1
+	    ;;
+    *)
+	    $as_echo "#define _CPU_ARCH_NOT_DEFINED 1" >>confdefs.h
+
+	    ;;
+    esac
+    ;;
+
+*-netbsd*)
+    $as_echo "#define XP_UNIX 1" >>confdefs.h
+
+    $as_echo "#define NETBSD 1" >>confdefs.h
+
+    $as_echo "#define HAVE_BSD_FLOCK 1" >>confdefs.h
+
+    $as_echo "#define HAVE_SOCKLEN_T 1" >>confdefs.h
+
+    $as_echo "#define HAVE_POINTER_LOCALTIME_R 1" >>confdefs.h
+
+    if test -z "$USE_NSPR_THREADS"; then
+        USE_PTHREADS=1
+    fi
+    MDCPUCFG_H=_netbsd.cfg
+    PR_MD_CSRCS=netbsd.c
+
+    DSO_CFLAGS='-fPIC -DPIC'
+    CFLAGS="$CFLAGS -ansi -Wall"
+    CXXFLAGS="$CXXFLAGS -ansi -Wall"
+    MKSHLIB='$(CC) -o $@ $(DSO_LDOPTS)'
+
+    if test -z "$OBJECT_FMT"; then
+        if echo __ELF__ | ${CC-cc} -E - | grep -q __ELF__ 2>/dev/null; then
+            OBJECT_FMT=a.out
+            DLL_SUFFIX=so.1.0
+            DSO_LDOPTS='-shared'
+        else
+            OBJECT_FMT=ELF
+            DLL_SUFFIX=so
+            DSO_LDOPTS='-shared -Wl,-soname,$(notdir $@)'
+        fi
+    fi
+
+    if test "$LIBRUNPATH"; then
+        DSO_LDOPTS="$DSO_LDOPTS -Wl,-R$LIBRUNPATH"
+    fi
+    ;;
+
+*-nto*)
+    $as_echo "#define XP_UNIX 1" >>confdefs.h
+
+    $as_echo "#define NTO 1" >>confdefs.h
+
+    $as_echo "#define _QNX_SOURCE 1" >>confdefs.h
+
+    $as_echo "#define HAVE_POINTER_LOCALTIME_R 1" >>confdefs.h
+
+    MDCPUCFG_H=_nto.cfg
+    PR_MD_CSRCS=nto.c
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -Wl,-soname -Wl,$(notdir $@) -o $@'
+    DSO_CFLAGS=-fPIC
+    DSO_LDOPTS=-shared
+    OS_LIBS="$OS_LIBS -lsocket"
+    _OPTIMIZE_FLAGS="-O1"
+    _DEBUG_FLAGS="-gstabs"
+	;;
+
+*-openbsd*)
+    $as_echo "#define XP_UNIX 1" >>confdefs.h
+
+    $as_echo "#define OPENBSD 1" >>confdefs.h
+
+    $as_echo "#define HAVE_BSD_FLOCK 1" >>confdefs.h
+
+    $as_echo "#define HAVE_SOCKLEN_T 1" >>confdefs.h
+
+    $as_echo "#define HAVE_POINTER_LOCALTIME_R 1" >>confdefs.h
+
+    CFLAGS="$CFLAGS -ansi -Wall"
+    CXXFLAGS="$CXXFLAGS -ansi -Wall"
+    DLL_SUFFIX=so.1.0
+    DSO_CFLAGS=-fPIC
+    MDCPUCFG_H=_openbsd.cfg
+    PR_MD_CSRCS=openbsd.c
+    OS_LIBS="-lc"
+    if test -z "$USE_NSPR_THREADS"; then
+        USE_PTHREADS=1
+    fi
+    DSO_LDOPTS='-shared -fPIC -Wl,-soname,$(notdir $@)'
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
+    ;;
+
+*-qnx*)
+    $as_echo "#define XP_UNIX 1" >>confdefs.h
+
+    $as_echo "#define QNX 1" >>confdefs.h
+
+    $as_echo "#define _PR_NEED_H_ERRNO 1" >>confdefs.h
+
+    USE_NSPR_THREADS=1
+    MDCPUCFG_H=_qnx.cfg
+    PR_MD_CSRCS=qnx.c
+    ;;
+
+*-riscos*)
+    $as_echo "#define XP_UNIX 1" >>confdefs.h
+
+    $as_echo "#define RISCOS 1" >>confdefs.h
+
+    $as_echo "#define _PR_NEED_H_ERRNO 1" >>confdefs.h
+
+    USE_PTHREADS=1
+    MDCPUCFG_H=_riscos.cfg
+    PR_MD_CSRCS=riscos.c
+    DSO_CFLAGS=-fPIC
+    DSO_LDOPTS='-shared -Wl,-soname -Wl,$(notdir $@)'
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
+    ;;
+
+*-*-sco*)
+    $as_echo "#define XP_UNIX 1" >>confdefs.h
+
+    $as_echo "#define SCO 1" >>confdefs.h
+
+    $as_echo "#define sco 1" >>confdefs.h
+
+    $as_echo "#define SYSV 1" >>confdefs.h
+
+    $as_echo "#define _SVID3 1" >>confdefs.h
+
+    $as_echo "#define _PR_NEED_H_ERRNO 1" >>confdefs.h
+
+    CC='cc -b elf -KPIC'
+    CXX='$(NSDEPTH)/build/hcpp CC +.cpp +w'
+    USE_NSPR_THREADS=1
+    CPU_ARCH=x86
+    DSO_LDOPTS='-b elf -G'
+    MDCPUCFG_H=_scoos.cfg
+    PR_MD_SRCS=scoos.c
+    ;;
+
+*-solaris*)
+    if test -z "$USE_NSPR_THREADS"; then
+        USE_PTHREADS=1
+    fi
+    $as_echo "#define XP_UNIX 1" >>confdefs.h
+
+    $as_echo "#define SVR4 1" >>confdefs.h
+
+    $as_echo "#define SYSV 1" >>confdefs.h
+
+    $as_echo "#define __svr4 1" >>confdefs.h
+
+    $as_echo "#define __svr4__ 1" >>confdefs.h
+
+    $as_echo "#define SOLARIS 1" >>confdefs.h
+
+    $as_echo "#define HAVE_FCNTL_FILE_LOCKING 1" >>confdefs.h
+
+    CPU_ARCH=`uname -p`
+    MDCPUCFG_H=_solaris.cfg
+    PR_MD_CSRCS=solaris.c
+    LD=/usr/ccs/bin/ld
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
+    RESOLVE_LINK_SYMBOLS=1
+    case "${OS_RELEASE}" in
+    5.8|5.9)
+        ;;
+    *)
+        # It is safe to use the -Bdirect linker flag on Solaris 10 or later.
+        USE_B_DIRECT=1
+        ;;
+    esac
+    if test -n "$GNU_CC"; then
+        DSO_CFLAGS=-fPIC
+        if `$CC -print-prog-name=ld` -v 2>&1 | grep -c GNU >/dev/null; then
+            GCC_USE_GNU_LD=1
+        fi
+        DSO_LDOPTS='-shared -Wl,-h,$(notdir $@),-z,combreloc,-z,defs,-z,ignore'
+        if test -n "$USE_B_DIRECT"; then
+            DSO_LDOPTS="$DSO_LDOPTS,-Bdirect"
+        fi
+    else
+        DSO_CFLAGS=-KPIC
+        DSO_LDOPTS='-G -h $(notdir $@) -z combreloc -z defs -z ignore'
+        if test -n "$USE_B_DIRECT"; then
+            DSO_LDOPTS="$DSO_LDOPTS -Bdirect"
+        fi
+    fi
+    if test -n "$GNU_CC"; then
+        CFLAGS="$CFLAGS -Wall"
+        CXXFLAGS="$CXXFLAGS -Wall"
+        if test -n "$USE_MDUPDATE"; then
+            CFLAGS="$CFLAGS -MDupdate \$(DEPENDENCIES)"
+            CXXFLAGS="$CXXFLAGS -MDupdate \$(DEPENDENCIES)"
+        fi
+        GCC_AS=`$CC -print-prog-name=as`
+        if test "`echo | $GCC_AS -v 2>&1 | grep -c GNU`" != "0"; then
+            GNU_AS=1
+        fi
+    else
+        CFLAGS="$CFLAGS -xstrconst"
+        CXXFLAGS="$CXXFLAGS -Qoption cg -xstrconst -features=tmplife"
+        if test -z "$MOZ_OPTIMIZE"; then
+            CFLAGS="$CFLAGS -xs"
+            CXXFLAGS="$CXXFLAGS -xs"
+        fi
+        _OPTIMIZE_FLAGS=-xO4
+    fi
+    if test -z "$GNU_AS"; then
+        ASFLAGS="$ASFLAGS -Wa,-P"
+    fi
+    if test -n "$USE_64"; then
+        if test -n "$GNU_CC"; then
+            CC="$CC -m64"
+            CXX="$CXX -m64"
+        else
+            if test "$OS_TEST" = "i86pc"; then
+                CC="$CC -xarch=amd64"
+                CXX="$CXX -xarch=amd64"
+            else
+                CC="$CC -xarch=v9"
+                CXX="$CXX -xarch=v9"
+            fi
+        fi
+    fi
+    if test "$OS_TEST" = "i86pc"; then
+        if test -z "$USE_64"; then
+            $as_echo "#define i386 1" >>confdefs.h
+
+        fi
+        CPU_ARCH_TAG=_$OS_TEST
+        # The default debug format, DWARF (-g), is not supported by gcc
+        # on i386-ANY-sysv4/solaris, but the stabs format is.  It is
+        # assumed that the Solaris assembler /usr/ccs/bin/as is used.
+        # If your gcc uses GNU as, you do not need the -Wa,-s option.
+        if test -n "$MOZ_DEBUG" && test -n "$GNU_CC"; then
+            _DEBUG_FLAGS=-gstabs
+            if test -z "$GNU_AS"; then
+                _DEBUG_FLAGS="$_DEBUG_FLAGS -Wa,-s"
+            fi
+        fi
+    fi
+    case "${target_os}" in
+    solaris2.3*)
+        $as_echo "#define _PR_NO_LARGE_FILES 1" >>confdefs.h
+
+        ;;
+    solaris2.4*)
+        $as_echo "#define _PR_NO_LARGE_FILES 1" >>confdefs.h
+
+        ;;
+    solaris2.5*)
+        $as_echo "#define SOLARIS2_5 1" >>confdefs.h
+
+        ;;
+    *)
+        $as_echo "#define _PR_HAVE_OFF64_T 1" >>confdefs.h
+
+        # The lfcompile64(5) man page on Solaris 2.6 says:
+        #     For applications that do not wish to conform to the POSIX or
+        #     X/Open  specifications,  the  64-bit transitional interfaces
+        #     are available by default.  No compile-time flags need to  be
+        #     set.
+        # But gcc 2.7.2.x fails to define _LARGEFILE64_SOURCE by default.
+        # The native compiler, gcc 2.8.x, and egcs don't have this problem.
+        if test -n "$GNU_CC"; then
+            $as_echo "#define _LARGEFILE64_SOURCE 1" >>confdefs.h
+
+        fi
+        ;;
+    esac
+    case "${target_os}" in
+    solaris2.3*)
+        ;;
+    solaris2.4*)
+        ;;
+    solaris2.5*)
+        ;;
+    solaris2.6*)
+        ;;
+    solaris2.7*)
+        ;;
+    *)
+        # Solaris 8 or higher has IPv6.
+        $as_echo "#define _PR_INET6 1" >>confdefs.h
+
+        ;;
+    esac
+    if test "$CPU_ARCH" = "sparc"; then
+        # 64-bit Solaris SPARC requires V9 architecture, so the following
+        # is not needed.
+        if test -z "$USE_64"; then
+            ULTRASPARC_LIBRARY=nspr_flt
+        fi
+    fi
+    # Purify requires that binaries linked against nspr also
+    # be linked against -lrt (or -lposix4) so add it to OS_LIBS
+    _rev=`uname -r`
+    _librt=`echo $_rev 5.6 | awk '{ if ($1 > $2) print "-lrt"; else print "-lposix4" }'`
+    OS_LIBS="$OS_LIBS $_librt"
+    ;;
+
+*-sco-sysv5*)
+    $as_echo "#define XP_UNIX 1" >>confdefs.h
+
+    $as_echo "#define UNIXWARE 1" >>confdefs.h
+
+    $as_echo "#define SVR4 1" >>confdefs.h
+
+    $as_echo "#define SYSV 1" >>confdefs.h
+
+    USE_NSPR_THREADS=1
+    if echo $OS_RELEASE | grep -c 2.1 2>/dev/null; then
+        $as_echo "#define _PR_NO_LARGE_FILES 1" >>confdefs.h
+
+        CC='$(NSDEPTH)/build/hcc cc'
+        CXX='$(NSDEPTH)/build/hcpp CC'
+        MDCPUCFG_H=_unixware.cfg
+    else
+        $as_echo "#define _LARGEFILE64_SOURCE 1" >>confdefs.h
+
+        $as_echo "#define _PR_HAVE_OFF64_T 1" >>confdefs.h
+
+        $as_echo "#define _PR_HAVE_SOCKADDR_LEN 1" >>confdefs.h
+
+        MDCPUCFG_H=_unixware7.cfg
+    fi
+    PR_MD_CSRCS=unixware.c
+    DSO_LDOPTS=-G
+    CPU_ARCH=x86
+    ;;
+
+*-os2*)
+    $as_echo "#define XP_OS2 1" >>confdefs.h
+
+    $as_echo "#define XP_PC 1" >>confdefs.h
+
+    $as_echo "#define BSD_SELECT 1" >>confdefs.h
+
+    $as_echo "#define TCPV40HDRS 1" >>confdefs.h
+
+    LIB_SUFFIX=lib
+    DLL_SUFFIX=dll
+    RC=rc.exe
+    PR_MD_ARCH_DIR=os2
+    PROG_SUFFIX=.exe
+    NSINSTALL=nsinstall
+    MDCPUCFG_H=_os2.cfg
+    RESOLVE_LINK_SYMBOLS=1
+
+    $as_echo "#define OS2 1" >>confdefs.h
+
+    AR=emxomfar
+    AR_FLAGS='r $@'
+    CFLAGS="$CFLAGS -Wall -Zomf"
+    CXXFLAGS="$CFLAGS -Wall -Zomf"
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
+    DSO_CFLAGS=
+    DSO_LDOPTS='-Zomf -Zdll'
+    LDFLAGS='-Zmap'
+    _OPTIMIZE_FLAGS="-O2 -s"
+    _DEBUG_FLAGS="-g -fno-inline"
+    if test -n "$MOZ_OPTIMIZE"; then
+      DSO_LDOPTS="$DSO_LDOPTS -Zlinker /EXEPACK:2 -Zlinker /PACKCODE -Zlinker /PACKDATA"
+    fi
+    IMPLIB='emximp -o'
+    FILTER='emxexp -o'
+    if test -n "$MOZ_OS2_HIGH_MEMORY"; then
+      LDFLAGS="$LDFLAGS -Zhigh-mem"
+      $as_echo "#define MOZ_OS2_HIGH_MEMORY 1" >>confdefs.h
+
+    fi
+
+    # GCC for OS/2 currently predefines these, but we don't want them
+    DEFINES="$DEFINES -Uunix -U__unix -U__unix__"
+    ;;
+
+*)
+    $as_echo "#define XP_UNIX 1" >>confdefs.h
+
+    ;;
+
+esac
+
+if test -z "$SKIP_LIBRARY_CHECKS"; then
+
+
+
+case $target in
+*-darwin*|*-os2*)
+    ;;
+*)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+$as_echo_n "checking for dlopen in -ldl... " >&6; }
+if ${ac_cv_lib_dl_dlopen+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_dl_dlopen=yes
+else
+  ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
+  ac_fn_c_check_header_mongrel "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default"
+if test "x$ac_cv_header_dlfcn_h" = xyes; then :
+  OS_LIBS="-ldl $OS_LIBS"
+fi
+
+
+fi
+
+    ;;
+esac
+
+
+
+
+if test $ac_cv_c_compiler_gnu = yes; then
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC needs -traditional" >&5
+$as_echo_n "checking whether $CC needs -traditional... " >&6; }
+if ${ac_cv_prog_gcc_traditional+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+    ac_pattern="Autoconf.*'x'"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <sgtty.h>
+Autoconf TIOCGETP
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "$ac_pattern" >/dev/null 2>&1; then :
+  ac_cv_prog_gcc_traditional=yes
+else
+  ac_cv_prog_gcc_traditional=no
+fi
+rm -f conftest*
+
+
+  if test $ac_cv_prog_gcc_traditional = no; then
+    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+#include <termio.h>
+Autoconf TCGETA
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+  $EGREP "$ac_pattern" >/dev/null 2>&1; then :
+  ac_cv_prog_gcc_traditional=yes
+fi
+rm -f conftest*
+
+  fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_gcc_traditional" >&5
+$as_echo "$ac_cv_prog_gcc_traditional" >&6; }
+  if test $ac_cv_prog_gcc_traditional = yes; then
+    CC="$CC -traditional"
+  fi
+fi
+
+_SAVE_LIBS="$LIBS"
+LIBS="$LIBS $OS_LIBS"
+for ac_func in dladdr gettid lchown setpriority strerror syscall  secure_getenv __secure_getenv
+do :
+  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+  cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+LIBS="$_SAVE_LIBS"
+
+
+
+# Check whether --with-ccache was given.
+if test "${with_ccache+set}" = set; then :
+  withval=$with_ccache; CCACHE=$withval
+else
+  CCACHE="no"
+fi
+
+
+if test "$CCACHE" != "no"; then
+    if test -n "$CCACHE"; then
+        if test "$CCACHE" = "yes"; then
+            CCACHE=
+        else
+            if test ! -e "$CCACHE"; then
+                as_fn_error $? "$CCACHE not found" "$LINENO" 5
+            fi
+        fi
+    fi
+    for ac_prog in $CCACHE ccache
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_CCACHE+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $CCACHE in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_CCACHE="$CCACHE" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_CCACHE="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+CCACHE=$ac_cv_path_CCACHE
+if test -n "$CCACHE"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CCACHE" >&5
+$as_echo "$CCACHE" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$CCACHE" && break
+done
+
+    if test -z "$CCACHE" -o "$CCACHE" = ":"; then
+        as_fn_error $? "ccache not found" "$LINENO" 5
+    elif test -x "$CCACHE"; then
+        CC="$CCACHE $CC"
+        CXX="$CCACHE $CXX"
+    else
+        as_fn_error $? "$CCACHE is not executable" "$LINENO" 5
+    fi
+fi
+
+# Check whether --enable-strip was given.
+if test "${enable_strip+set}" = set; then :
+  enableval=$enable_strip;  if test "$enableval" = "yes"; then
+	    ENABLE_STRIP=1
+      fi
+fi
+
+
+case "${target_os}" in
+hpux*)
+if test -z "$GNU_CC"; then
+
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for +Olit support" >&5
+$as_echo_n "checking for +Olit support... " >&6; }
+if ${ac_cv_hpux_usable_olit_option+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+                  ac_cv_hpux_usable_olit_option=no
+        rm -f conftest*
+        echo 'int main() { return 0; }' | cat > conftest.c
+        ${CC-cc} ${CFLAGS} +Olit=all -o conftest conftest.c > conftest.out 2>&1
+        if test $? -eq 0; then
+            if test -z "`egrep -i '(unrecognize|unknown)' conftest.out`"; then
+                ac_cv_hpux_usable_olit_option=yes
+            fi
+        fi
+        rm -f conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_hpux_usable_olit_option" >&5
+$as_echo "$ac_cv_hpux_usable_olit_option" >&6; }
+
+    if test "$ac_cv_hpux_usable_olit_option" = "yes"; then
+        CFLAGS="$CFLAGS +Olit=all"
+        CXXFLAGS="$CXXFLAGS +Olit=all"
+    else
+        CFLAGS="$CFLAGS +ESlit"
+        CXXFLAGS="$CXXFLAGS +ESlit"
+    fi
+fi
+;;
+esac
+
+case "$target_os" in
+darwin*)
+    _HAVE_PTHREADS=1
+    ;;
+*)
+    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lpthreads" >&5
+$as_echo_n "checking for pthread_create in -lpthreads... " >&6; }
+if ${ac_cv_lib_pthreads_pthread_create+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpthreads  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_create ();
+int
+main ()
+{
+return pthread_create ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_pthreads_pthread_create=yes
+else
+  ac_cv_lib_pthreads_pthread_create=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthreads_pthread_create" >&5
+$as_echo "$ac_cv_lib_pthreads_pthread_create" >&6; }
+if test "x$ac_cv_lib_pthreads_pthread_create" = xyes; then :
+  _HAVE_PTHREADS=1 _PTHREAD_LDFLAGS="-lpthreads"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lpthread" >&5
+$as_echo_n "checking for pthread_create in -lpthread... " >&6; }
+if ${ac_cv_lib_pthread_pthread_create+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lpthread  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_create ();
+int
+main ()
+{
+return pthread_create ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_pthread_pthread_create=yes
+else
+  ac_cv_lib_pthread_pthread_create=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_create" >&5
+$as_echo "$ac_cv_lib_pthread_pthread_create" >&6; }
+if test "x$ac_cv_lib_pthread_pthread_create" = xyes; then :
+  _HAVE_PTHREADS=1 _PTHREAD_LDFLAGS="-lpthread"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lc_r" >&5
+$as_echo_n "checking for pthread_create in -lc_r... " >&6; }
+if ${ac_cv_lib_c_r_pthread_create+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lc_r  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_create ();
+int
+main ()
+{
+return pthread_create ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_c_r_pthread_create=yes
+else
+  ac_cv_lib_c_r_pthread_create=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_r_pthread_create" >&5
+$as_echo "$ac_cv_lib_c_r_pthread_create" >&6; }
+if test "x$ac_cv_lib_c_r_pthread_create" = xyes; then :
+  _HAVE_PTHREADS=1 _PTHREAD_LDFLAGS="-lc_r"
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lc" >&5
+$as_echo_n "checking for pthread_create in -lc... " >&6; }
+if ${ac_cv_lib_c_pthread_create+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lc  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_create ();
+int
+main ()
+{
+return pthread_create ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_c_pthread_create=yes
+else
+  ac_cv_lib_c_pthread_create=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_pthread_create" >&5
+$as_echo "$ac_cv_lib_c_pthread_create" >&6; }
+if test "x$ac_cv_lib_c_pthread_create" = xyes; then :
+  _HAVE_PTHREADS=1
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+    ;;
+esac
+
+
+# Check whether --with-pthreads was given.
+if test "${with_pthreads+set}" = set; then :
+  withval=$with_pthreads;  if test "$withval" = "yes"; then
+	    if test -n "$_HAVE_PTHREADS"; then
+		    USE_PTHREADS=1
+		    USE_USER_PTHREADS=
+		    USE_NSPR_THREADS=
+	    else
+		    as_fn_error $? " --with-pthreads specified for a system without pthread support " "$LINENO" 5;
+	    fi
+	  else
+	    USE_PTHREADS=
+	    _PTHREAD_LDFLAGS=
+	  fi
+else
+   if test -n "$_HAVE_PTHREADS" && test -z "$USE_USER_PTHREADS" && test -z "$USE_NSPR_THREADS"; then
+	    USE_PTHREADS=1
+	    USE_USER_PTHREADS=
+	    USE_NSPR_THREADS=
+	  fi
+fi
+
+
+# Check whether --enable-user-pthreads was given.
+if test "${enable_user_pthreads+set}" = set; then :
+  enableval=$enable_user_pthreads;  if test "$enableval" = "yes"; then
+        if test -n "$_HAVE_PTHREADS"; then
+		    USE_PTHREADS=
+		    USE_USER_PTHREADS=1
+		    USE_NSPR_THREADS=
+	    else
+		    as_fn_error $? " --enable-user-pthreads specified for a system without pthread support " "$LINENO" 5;
+	    fi
+	  fi
+fi
+
+
+# Check whether --enable-nspr-threads was given.
+if test "${enable_nspr_threads+set}" = set; then :
+  enableval=$enable_nspr_threads;  if test "$enableval" = "yes"; then
+	    USE_PTHREADS=
+	    USE_USER_PTHREADS=
+	    USE_NSPR_THREADS=1
+	  fi
+fi
+
+
+fi # SKIP_LIBRARY_CHECKS
+
+# Check whether --enable-ipv6 was given.
+if test "${enable_ipv6+set}" = set; then :
+  enableval=$enable_ipv6;  if test "$enableval" = "yes"; then
+	    USE_IPV6=1
+      else
+	    USE_IPV6=
+      fi
+fi
+
+
+if test -n "$USE_PTHREADS"; then
+      rm -f conftest*
+   ac_cv_have_dash_pthread=no
+   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${CC-cc} accepts -pthread" >&5
+$as_echo_n "checking whether ${CC-cc} accepts -pthread... " >&6; }
+   echo 'int main() { return 0; }' | cat > conftest.c
+   ${CC-cc} -pthread -o conftest conftest.c > conftest.out 2>&1
+   if test $? -eq 0; then
+	if test -z "`egrep -i '(unrecognize|unknown)' conftest.out | grep pthread`" && test -z "`egrep -i '(error|incorrect)' conftest.out`" ; then
+	    ac_cv_have_dash_pthread=yes
+		case "$target_os" in
+	    freebsd*)
+# Freebsd doesn't use -pthread for compiles, it uses them for linking
+            ;;
+	    *)
+            CFLAGS="$CFLAGS -pthread"
+            CXXFLAGS="$CXXFLAGS -pthread"
+            ;;
+        esac
+	fi
+    fi
+    rm -f conftest*
+    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have_dash_pthread" >&5
+$as_echo "$ac_cv_have_dash_pthread" >&6; }
+
+			    ac_cv_have_dash_pthreads=no
+    if test "$ac_cv_have_dash_pthread" = "no"; then
+	    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${CC-cc} accepts -pthreads" >&5
+$as_echo_n "checking whether ${CC-cc} accepts -pthreads... " >&6; }
+    	echo 'int main() { return 0; }' | cat > conftest.c
+	    ${CC-cc} -pthreads -o conftest conftest.c > conftest.out 2>&1
+    	if test $? -eq 0; then
+	    	if test -z "`egrep -i '(unrecognize|unknown)' conftest.out | grep pthreads`" && test -z "`egrep -i '(error|incorrect)' conftest.out`" ; then
+			    ac_cv_have_dash_pthreads=yes
+			    CFLAGS="$CFLAGS -pthreads"
+			    CXXFLAGS="$CXXFLAGS -pthreads"
+		    fi
+	    fi
+	    rm -f conftest*
+    	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_have_dash_pthreads" >&5
+$as_echo "$ac_cv_have_dash_pthreads" >&6; }
+    fi
+
+    case "$target" in
+    *-solaris*)
+        if test "$ac_cv_have_dash_pthreads" = "yes"; then
+            _PTHREAD_LDFLAGS=
+        fi
+	    ;;
+    *-freebsd*)
+	    $as_echo "#define _REENTRANT 1" >>confdefs.h
+
+	    $as_echo "#define _THREAD_SAFE 1" >>confdefs.h
+
+	    	    if test "$ac_cv_have_dash_pthread" = "yes"; then
+	        _PTHREAD_LDFLAGS="-pthread"
+	    else
+	        _PTHREAD_LDFLAGS="-lc_r"
+	    fi
+	    ;;
+    *-netbsd*)
+	    if test "$ac_cv_have_dash_pthread" = "yes"; then
+	        _PTHREAD_LDFLAGS="-pthread"
+	    fi
+	    ;;
+    *-bsdi*)
+	    $as_echo "#define _THREAD_SAFE 1" >>confdefs.h
+
+	    	    if test "$ac_cv_have_dash_pthread" = "yes"; then
+	        _PTHREAD_LDFLAGS=
+	    fi
+	    ;;
+    *-openbsd*)
+        if test "$ac_cv_have_dash_pthread" = "yes"; then
+            _PTHREAD_LDFLAGS=-pthread
+        fi
+        ;;
+    *-linux*|*-gnu*|*-k*bsd*-gnu)
+        $as_echo "#define _REENTRANT 1" >>confdefs.h
+
+        ;;
+    esac
+
+else
+    if test -n "$USE_USER_PTHREADS"; then
+	    USE_PTHREADS=
+	    USE_NSPR_THREADS=
+    else
+        _PTHREAD_LDFLAGS=
+    fi
+fi
+
+case "$target" in
+*-aix*)
+    if test -n "$USE_NSPR_THREADS"; then
+        $as_echo "#define _PR_LOCAL_THREADS_ONLY 1" >>confdefs.h
+
+    fi
+    case "$target_os" in
+    aix4.1*)
+        if test -z "$USE_PTHREADS"; then
+            $as_echo "#define AIX_RENAME_SELECT 1" >>confdefs.h
+
+        fi
+        ;;
+    aix4.2*)
+        if test -z "$USE_NSPR_THREADS"; then
+            $as_echo "#define HAVE_POINTER_LOCALTIME_R 1" >>confdefs.h
+
+        fi
+        ;;
+    aix4.3*)
+        if test -z "$USE_NSPR_THREADS"; then
+            $as_echo "#define HAVE_POINTER_LOCALTIME_R 1" >>confdefs.h
+
+        fi
+        if test -n "$USE_PTHREADS"; then
+            $as_echo "#define _PR_HAVE_THREADSAFE_GETHOST 1" >>confdefs.h
+
+        fi
+        ;;
+    *)
+        if test -z "$USE_NSPR_THREADS"; then
+            $as_echo "#define HAVE_POINTER_LOCALTIME_R 1" >>confdefs.h
+
+        fi
+        if test -n "$USE_PTHREADS"; then
+            $as_echo "#define _PR_HAVE_THREADSAFE_GETHOST 1" >>confdefs.h
+
+        fi
+        ;;
+    esac
+    ;;
+*-bsdi*)
+    if test -n "$USE_PTHREADS"; then
+        $as_echo "#define _PR_NEED_PTHREAD_INIT 1" >>confdefs.h
+
+    fi
+    ;;
+*-freebsd*)
+    if test -n "$USE_NSPR_THREADS"; then
+        $as_echo "#define _PR_LOCAL_THREADS_ONLY 1" >>confdefs.h
+
+    fi
+    ;;
+*-hpux*)
+    if test -n "$USE_NSPR_THREADS"; then
+        $as_echo "#define _PR_LOCAL_THREADS_ONLY 1" >>confdefs.h
+
+    fi
+    if test "$USE_PTHREADS"; then
+        cat >>confdefs.h <<_ACEOF
+#define _POSIX_C_SOURCE 199506L
+_ACEOF
+
+        $as_echo "#define _PR_HAVE_THREADSAFE_GETHOST 1" >>confdefs.h
+
+    fi
+    if test "$USE_USER_PTHREADS"; then
+        cat >>confdefs.h <<_ACEOF
+#define _POSIX_C_SOURCE 199506L
+_ACEOF
+
+    fi
+    ;;
+*-linux*|*-gnu*|*-k*bsd*-gnu)
+    if test -n "$USE_NSPR_THREADS"; then
+        $as_echo "#define _PR_LOCAL_THREADS_ONLY 1" >>confdefs.h
+
+    fi
+    ;;
+*-mingw*|*-msys*|*-cygwin*|*-mks*|*-os2*)
+        USE_PTHREADS=
+    _PTHREAD_LDFLAGS=
+    USE_USER_PTHREADS=
+    ;;
+*-netbsd*|*-openbsd*)
+    if test -n "$USE_NSPR_THREADS"; then
+        $as_echo "#define _PR_LOCAL_THREADS_ONLY 1" >>confdefs.h
+
+    fi
+    ;;
+*-solaris*)
+    if test -n "$USE_NSPR_THREADS"; then
+        $as_echo "#define _PR_LOCAL_THREADS_ONLY 1" >>confdefs.h
+
+    fi
+    if test -n "$USE_PTHREADS"; then
+        $as_echo "#define _REENTRANT 1" >>confdefs.h
+
+        $as_echo "#define HAVE_POINTER_LOCALTIME_R 1" >>confdefs.h
+
+        if test "$OS_TEST" = "i86pc"; then
+            if test -n "$USE_64"; then
+               PR_MD_ASFILES=os_SunOS_x86_64.s
+            else
+               PR_MD_ASFILES=os_SunOS_x86.s
+            fi
+        else
+            if test -n "$USE_64"; then
+                PR_MD_ASFILES=os_SunOS_sparcv9.s
+            fi
+        fi
+    fi
+    ;;
+*-nto*)
+    if test -n "$USE_PTHREADS"; then
+        $as_echo "#define _PR_HAVE_GETHOST_R 1" >>confdefs.h
+
+        $as_echo "#define _PR_HAVE_GETHOST_R_POINTER 1" >>confdefs.h
+
+    fi
+    ;;
+esac
+
+OS_LIBS="$_PTHREAD_LDFLAGS $OS_LIBS"
+
+if test -n "$_SAVE_OPTIMIZE_FLAGS"; then
+    _OPTIMIZE_FLAGS="$_SAVE_OPTIMIZE_FLAGS"
+fi
+
+if test -n "$_SAVE_DEBUG_FLAGS"; then
+    _DEBUG_FLAGS="$_SAVE_DEBUG_FLAGS"
+fi
+
+if test -n "$MOZ_OPTIMIZE"; then
+    CFLAGS="$CFLAGS $_OPTIMIZE_FLAGS"
+    CXXFLAGS="$CXXFLAGS $_OPTIMIZE_FLAGS"
+fi
+
+if test -n "$MOZ_DEBUG_SYMBOLS"; then
+    CFLAGS="$CFLAGS $_DEBUG_FLAGS"
+    CXXFLAGS="$CXXFLAGS $_DEBUG_FLAGS"
+fi
+
+if test -n "$MOZ_OPTIMIZE"; then
+    OBJDIR_TAG=_OPT
+else
+    OBJDIR_TAG=_DBG
+fi
+
+if test -n "$USE_64"; then
+    COMPILER_TAG=_64
+fi
+
+RELEASE_OBJDIR_NAME="${OS_CONFIG}${CPU_ARCH_TAG}${COMPILER_TAG}${IMPL_STRATEGY}${OBJDIR_TAG}.${OBJDIR_SUFFIX}"
+
+case "$target_os" in
+cygwin*|mks*)
+    CC="\$(CYGWIN_WRAPPER) $CC"
+    CXX="\$(CYGWIN_WRAPPER) $CXX"
+    RC="\$(CYGWIN_WRAPPER) $RC"
+    ;;
+esac
+
+# Check whether --enable-wrap-malloc was given.
+if test "${enable_wrap_malloc+set}" = set; then :
+  enableval=$enable_wrap_malloc;      if test "$enableval" = "yes"; then
+	    _WRAP_MALLOC=1
+      fi
+fi
+
+
+if test -n "$_WRAP_MALLOC"; then
+    if test -n "$GNU_CC"; then
+        WRAP_LDFLAGS="${WRAP_LDFLAGS} -Wl,--wrap=malloc,--wrap=calloc,--wrap=valloc,--wrap=free,--wrap=realloc,--wrap=memalign"
+        WRAP_LDFLAGS="${WRAP_LDFLAGS} -Wl,--wrap=__builtin_new,--wrap=__builtin_vec_new,--wrap=__builtin_delete,--wrap=__builtin_vec_delete"
+        WRAP_LDFLAGS="${WRAP_LDFLAGS} -Wl,--wrap=strdup,--wrap=strndup"
+        WRAP_LDFLAGS="${WRAP_LDFLAGS} -Wl,--wrap=posix_memalign,--wrap=malloc_usable_size"
+    else
+        as_fn_error $? "--enable-wrap-malloc is not supported for non-GNU toolchains" "$LINENO" 5
+    fi
+fi
+
+
+# Check whether --with-wrap-malloc was given.
+if test "${with_wrap_malloc+set}" = set; then :
+  withval=$with_wrap_malloc; WRAP_LDFLAGS="${WRAP_LDFLAGS} $withval"
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+MAKEFILES="
+    Makefile
+    config/Makefile
+    config/autoconf.mk
+    config/nsprincl.mk
+    config/nsprincl.sh
+    config/nspr-config
+    config/nspr.pc
+    lib/Makefile
+    lib/ds/Makefile
+    lib/libc/Makefile
+    lib/libc/include/Makefile
+    lib/libc/src/Makefile
+    lib/tests/Makefile
+    pkg/Makefile
+    pr/Makefile
+    pr/include/Makefile
+    pr/include/md/Makefile
+    pr/include/obsolete/Makefile
+    pr/include/private/Makefile
+    pr/src/Makefile
+    pr/src/io/Makefile
+    pr/src/linking/Makefile
+    pr/src/malloc/Makefile
+    pr/src/md/Makefile
+    pr/src/md/${PR_MD_ARCH_DIR}/Makefile
+    pr/src/memory/Makefile
+    pr/src/misc/Makefile
+    pr/src/threads/Makefile
+    pr/tests/Makefile
+    pr/tests/dll/Makefile
+"
+
+if test "$OS_TARGET" = "Linux"; then
+    MAKEFILES="$MAKEFILES
+        pkg/linux/Makefile
+    "
+elif test "$OS_TARGET" = "SunOS"; then
+    MAKEFILES="$MAKEFILES
+        pkg/solaris/Makefile
+        pkg/solaris/SUNWpr/Makefile
+        pkg/solaris/SUNWprd/Makefile
+    "
+fi
+
+if test -z "$USE_PTHREADS" && test -z "$USE_BTHREADS"; then
+    MAKEFILES="$MAKEFILES
+        pr/src/threads/combined/Makefile
+    "
+elif test -n "$USE_PTHREADS"; then
+    MAKEFILES="$MAKEFILES
+        pr/src/pthreads/Makefile
+    "
+elif test -n "$USE_BTHREADS"; then
+    MAKEFILES="$MAKEFILES
+        pr/src/bthreads/Makefile
+    "
+fi
+
+if test -n "$USE_CPLUS"; then
+    MAKEFILES="$MAKEFILES
+        pr/src/cplus/Makefile
+        pr/src/cplus/tests/Makefile
+    "
+fi
+
+echo $MAKEFILES > unallmakefiles
+
+ac_config_files="$ac_config_files $MAKEFILES"
+
+ac_config_commands="$ac_config_commands default"
+
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems.  If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, we kill variables containing newlines.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(
+  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
+    eval ac_val=\$$ac_var
+    case $ac_val in #(
+    *${as_nl}*)
+      case $ac_var in #(
+      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+      esac
+      case $ac_var in #(
+      _ | IFS | as_nl) ;; #(
+      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+      *) { eval $ac_var=; unset $ac_var;} ;;
+      esac ;;
+    esac
+  done
+
+  (set) 2>&1 |
+    case $as_nl`(ac_space=' '; set) 2>&1` in #(
+    *${as_nl}ac_space=\ *)
+      # `set' does not quote correctly, so add quotes: double-quote
+      # substitution turns \\\\ into \\, and sed turns \\ into \.
+      sed -n \
+	"s/'/'\\\\''/g;
+	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+      ;; #(
+    *)
+      # `set' quotes correctly as required by POSIX, so do not add quotes.
+      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+      ;;
+    esac |
+    sort
+) |
+  sed '
+     /^ac_cv_env_/b end
+     t clear
+     :clear
+     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     t end
+     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+     :end' >>confcache
+if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
+  if test -w "$cache_file"; then
+    if test "x$cache_file" != "x/dev/null"; then
+      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+$as_echo "$as_me: updating cache $cache_file" >&6;}
+      if test ! -f "$cache_file" || test -h "$cache_file"; then
+	cat confcache >"$cache_file"
+      else
+        case $cache_file in #(
+        */* | ?:*)
+	  mv -f confcache "$cache_file"$$ &&
+	  mv -f "$cache_file"$$ "$cache_file" ;; #(
+        *)
+	  mv -f confcache "$cache_file" ;;
+	esac
+      fi
+    fi
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+  fi
+fi
+rm -f confcache
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+# Transform confdefs.h into DEFS.
+# Protect against shell expansion while executing Makefile rules.
+# Protect against Makefile macro expansion.
+#
+# If the first sed substitution is executed (which looks for macros that
+# take arguments), then branch to the quote section.  Otherwise,
+# look for a macro that doesn't take arguments.
+ac_script='
+:mline
+/\\$/{
+ N
+ s,\\\n,,
+ b mline
+}
+t clear
+:clear
+s/^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 (][^	 (]*([^)]*)\)[	 ]*\(.*\)/-D\1=\2/g
+t quote
+s/^[	 ]*#[	 ]*define[	 ][	 ]*\([^	 ][^	 ]*\)[	 ]*\(.*\)/-D\1=\2/g
+t quote
+b any
+:quote
+s/[	 `~#$^&*(){}\\|;'\''"<>?]/\\&/g
+s/\[/\\&/g
+s/\]/\\&/g
+s/\$/$$/g
+H
+:any
+${
+	g
+	s/^\n//
+	s/\n/ /g
+	p
+}
+'
+DEFS=`sed -n "$ac_script" confdefs.h`
+
+
+ac_libobjs=
+ac_ltlibobjs=
+U=
+for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
+  # 1. Remove the extension, and $U if already installed.
+  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
+  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
+  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
+  #    will be set to the directory where LIBOBJS objects are built.
+  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
+done
+LIBOBJS=$ac_libobjs
+
+LTLIBOBJS=$ac_ltlibobjs
+
+
+
+: "${CONFIG_STATUS=./config.status}"
+ac_write_fail=0
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
+as_write_fail=0
+cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+ac_cs_recheck=false
+ac_cs_silent=false
+
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+  emulate sh
+  NULLCMD=:
+  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+  # is contrary to our usage.  Disable this feature.
+  alias -g '${1+"$@"}'='"$@"'
+  setopt NO_GLOB_SUBST
+else
+  case `(set -o) 2>/dev/null` in #(
+  *posix*) :
+    set -o posix ;; #(
+  *) :
+     ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='print -r --'
+  as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+  as_echo='printf %s\n'
+  as_echo_n='printf %s'
+else
+  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+    as_echo_n='/usr/ucb/echo -n'
+  else
+    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+    as_echo_n_body='eval
+      arg=$1;
+      case $arg in #(
+      *"$as_nl"*)
+	expr "X$arg" : "X\\(.*\\)$as_nl";
+	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+      esac;
+      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+    '
+    export as_echo_n_body
+    as_echo_n='sh -c $as_echo_n_body as_echo'
+  fi
+  export as_echo_body
+  as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+  PATH_SEPARATOR=:
+  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+      PATH_SEPARATOR=';'
+  }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order.  Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" ""	$as_nl"
+
+# Find who we are.  Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+  *[\\/]* ) as_myself=$0 ;;
+  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+  done
+IFS=$as_save_IFS
+
+     ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+  as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there.  '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+  as_status=$1; test $as_status -eq 0 && as_status=1
+  if test "$4"; then
+    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+  fi
+  $as_echo "$as_me: error: $2" >&2
+  as_fn_exit $as_status
+} # as_fn_error
+
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+  { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+  eval 'as_fn_append ()
+  {
+    eval $1+=\$2
+  }'
+else
+  as_fn_append ()
+  {
+    eval $1=\$$1\$2
+  }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+  eval 'as_fn_arith ()
+  {
+    as_val=$(( $* ))
+  }'
+else
+  as_fn_arith ()
+  {
+    as_val=`expr "$@" || test $? -eq 1`
+  }
+fi # as_fn_arith
+
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+  as_dirname=dirname
+else
+  as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+  case `echo 'xy\c'` in
+  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
+  xy)  ECHO_C='\c';;
+  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
+       ECHO_T='	';;
+  esac;;
+*)
+  ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+  rm -f conf$$.dir/conf$$.file
+else
+  rm -f conf$$.dir
+  mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+  if ln -s conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s='ln -s'
+    # ... but there are two gotchas:
+    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+    # In both cases, we have to default to `cp -pR'.
+    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+      as_ln_s='cp -pR'
+  elif ln conf$$.file conf$$ 2>/dev/null; then
+    as_ln_s=ln
+  else
+    as_ln_s='cp -pR'
+  fi
+else
+  as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+  case $as_dir in #(
+  -*) as_dir=./$as_dir;;
+  esac
+  test -d "$as_dir" || eval $as_mkdir_p || {
+    as_dirs=
+    while :; do
+      case $as_dir in #(
+      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *) as_qdir=$as_dir;;
+      esac
+      as_dirs="'$as_qdir' $as_dirs"
+      as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$as_dir" : 'X\(//\)[^/]' \| \
+	 X"$as_dir" : 'X\(//\)$' \| \
+	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+      test -d "$as_dir" && break
+    done
+    test -z "$as_dirs" || eval "mkdir $as_dirs"
+  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+if mkdir -p . 2>/dev/null; then
+  as_mkdir_p='mkdir -p "$as_dir"'
+else
+  test -d ./-p && rmdir ./-p
+  as_mkdir_p=false
+fi
+
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+  test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+exec 6>&1
+## ----------------------------------- ##
+## Main body of $CONFIG_STATUS script. ##
+## ----------------------------------- ##
+_ASEOF
+test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# Save the log message, to keep $0 and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling.
+ac_log="
+This file was extended by $as_me, which was
+generated by GNU Autoconf 2.69.  Invocation command line was
+
+  CONFIG_FILES    = $CONFIG_FILES
+  CONFIG_HEADERS  = $CONFIG_HEADERS
+  CONFIG_LINKS    = $CONFIG_LINKS
+  CONFIG_COMMANDS = $CONFIG_COMMANDS
+  $ $0 $@
+
+on `(hostname || uname -n) 2>/dev/null | sed 1q`
+"
+
+_ACEOF
+
+case $ac_config_files in *"
+"*) set x $ac_config_files; shift; ac_config_files=$*;;
+esac
+
+
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+# Files that config.status was made for.
+config_files="$ac_config_files"
+config_commands="$ac_config_commands"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+ac_cs_usage="\
+\`$as_me' instantiates files and other configuration actions
+from templates according to the current configuration.  Unless the files
+and actions are specified as TAGs, all are instantiated by default.
+
+Usage: $0 [OPTION]... [TAG]...
+
+  -h, --help       print this help, then exit
+  -V, --version    print version number and configuration settings, then exit
+      --config     print configuration, then exit
+  -q, --quiet, --silent
+                   do not print progress messages
+  -d, --debug      don't remove temporary files
+      --recheck    update $as_me by reconfiguring in the same conditions
+      --file=FILE[:TEMPLATE]
+                   instantiate the configuration file FILE
+
+Configuration files:
+$config_files
+
+Configuration commands:
+$config_commands
+
+Report bugs to the package provider."
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_version="\\
+config.status
+configured by $0, generated by GNU Autoconf 2.69,
+  with options \\"\$ac_cs_config\\"
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+
+ac_pwd='$ac_pwd'
+srcdir='$srcdir'
+test -n "\$AWK" || AWK=awk
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# The default lists apply if the user does not specify any file.
+ac_need_defaults=:
+while test $# != 0
+do
+  case $1 in
+  --*=?*)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
+    ac_shift=:
+    ;;
+  --*=)
+    ac_option=`expr "X$1" : 'X\([^=]*\)='`
+    ac_optarg=
+    ac_shift=:
+    ;;
+  *)
+    ac_option=$1
+    ac_optarg=$2
+    ac_shift=shift
+    ;;
+  esac
+
+  case $ac_option in
+  # Handling of the options.
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    ac_cs_recheck=: ;;
+  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
+    $as_echo "$ac_cs_version"; exit ;;
+  --config | --confi | --conf | --con | --co | --c )
+    $as_echo "$ac_cs_config"; exit ;;
+  --debug | --debu | --deb | --de | --d | -d )
+    debug=: ;;
+  --file | --fil | --fi | --f )
+    $ac_shift
+    case $ac_optarg in
+    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    '') as_fn_error $? "missing file argument" ;;
+    esac
+    as_fn_append CONFIG_FILES " '$ac_optarg'"
+    ac_need_defaults=false;;
+  --he | --h |  --help | --hel | -h )
+    $as_echo "$ac_cs_usage"; exit ;;
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil | --si | --s)
+    ac_cs_silent=: ;;
+
+  # This is an error.
+  -*) as_fn_error $? "unrecognized option: \`$1'
+Try \`$0 --help' for more information." ;;
+
+  *) as_fn_append ac_config_targets " $1"
+     ac_need_defaults=false ;;
+
+  esac
+  shift
+done
+
+ac_configure_extra_args=
+
+if $ac_cs_silent; then
+  exec 6>/dev/null
+  ac_configure_extra_args="$ac_configure_extra_args --silent"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+if \$ac_cs_recheck; then
+  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+  shift
+  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+  CONFIG_SHELL='$SHELL'
+  export CONFIG_SHELL
+  exec "\$@"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+exec 5>>config.log
+{
+  echo
+  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+  $as_echo "$ac_log"
+} >&5
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+
+# Handling of arguments.
+for ac_config_target in $ac_config_targets
+do
+  case $ac_config_target in
+    "$MAKEFILES") CONFIG_FILES="$CONFIG_FILES $MAKEFILES" ;;
+    "default") CONFIG_COMMANDS="$CONFIG_COMMANDS default" ;;
+
+  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+  esac
+done
+
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used.  Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+  test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
+fi
+
+# Have a temporary directory for convenience.  Make it in the build tree
+# simply because there is no reason against having it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Hook for its removal unless debugging.
+# Note that there is a small window in which the directory will not be cleaned:
+# after its creation but before its name has been assigned to `$tmp'.
+$debug ||
+{
+  tmp= ac_tmp=
+  trap 'exit_status=$?
+  : "${ac_tmp:=$tmp}"
+  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
+' 0
+  trap 'as_fn_exit 1' 1 2 13 15
+}
+# Create a (secure) tmp directory for tmp files.
+
+{
+  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
+  test -d "$tmp"
+}  ||
+{
+  tmp=./conf$$-$RANDOM
+  (umask 077 && mkdir "$tmp")
+} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
+ac_tmp=$tmp
+
+# Set up the scripts for CONFIG_FILES section.
+# No need to generate them if there are no CONFIG_FILES.
+# This happens for instance with `./config.status config.h'.
+if test -n "$CONFIG_FILES"; then
+
+
+ac_cr=`echo X | tr X '\015'`
+# On cygwin, bash can eat \r inside `` if the user requested igncr.
+# But we know of no other shell where ac_cr would be empty at this
+# point, so we can use a bashism as a fallback.
+if test "x$ac_cr" = x; then
+  eval ac_cr=\$\'\\r\'
+fi
+ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
+if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
+  ac_cs_awk_cr='\\r'
+else
+  ac_cs_awk_cr=$ac_cr
+fi
+
+echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
+_ACEOF
+
+
+{
+  echo "cat >conf$$subs.awk <<_ACEOF" &&
+  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
+  echo "_ACEOF"
+} >conf$$subs.sh ||
+  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
+ac_delim='%!_!# '
+for ac_last_try in false false false false false :; do
+  . ./conf$$subs.sh ||
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+
+  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
+  if test $ac_delim_n = $ac_delim_num; then
+    break
+  elif $ac_last_try; then
+    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+  else
+    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+  fi
+done
+rm -f conf$$subs.sh
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
+_ACEOF
+sed -n '
+h
+s/^/S["/; s/!.*/"]=/
+p
+g
+s/^[^!]*!//
+:repl
+t repl
+s/'"$ac_delim"'$//
+t delim
+:nl
+h
+s/\(.\{148\}\)..*/\1/
+t more1
+s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
+p
+n
+b repl
+:more1
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t nl
+:delim
+h
+s/\(.\{148\}\)..*/\1/
+t more2
+s/["\\]/\\&/g; s/^/"/; s/$/"/
+p
+b
+:more2
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t delim
+' <conf$$subs.awk | sed '
+/^[^""]/{
+  N
+  s/\n//
+}
+' >>$CONFIG_STATUS || ac_write_fail=1
+rm -f conf$$subs.awk
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+_ACAWK
+cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
+  for (key in S) S_is_set[key] = 1
+  FS = ""
+
+}
+{
+  line = $ 0
+  nfields = split(line, field, "@")
+  substed = 0
+  len = length(field[1])
+  for (i = 2; i < nfields; i++) {
+    key = field[i]
+    keylen = length(key)
+    if (S_is_set[key]) {
+      value = S[key]
+      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
+      len += length(value) + length(field[++i])
+      substed = 1
+    } else
+      len += 1 + keylen
+  }
+
+  print line
+}
+
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
+  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
+else
+  cat
+fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
+  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
+_ACEOF
+
+# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
+# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
+h
+s///
+s/^/:/
+s/[	 ]*$/:/
+s/:\$(srcdir):/:/g
+s/:\${srcdir}:/:/g
+s/:@srcdir@:/:/g
+s/^:*//
+s/:*$//
+x
+s/\(=[	 ]*\).*/\1/
+G
+s/\n//
+s/^[^=]*=[	 ]*$//
+}'
+fi
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+fi # test -n "$CONFIG_FILES"
+
+
+eval set X "  :F $CONFIG_FILES      :C $CONFIG_COMMANDS"
+shift
+for ac_tag
+do
+  case $ac_tag in
+  :[FHLC]) ac_mode=$ac_tag; continue;;
+  esac
+  case $ac_mode$ac_tag in
+  :[FHL]*:*);;
+  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+  :[FH]-) ac_tag=-:-;;
+  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
+  esac
+  ac_save_IFS=$IFS
+  IFS=:
+  set x $ac_tag
+  IFS=$ac_save_IFS
+  shift
+  ac_file=$1
+  shift
+
+  case $ac_mode in
+  :L) ac_source=$1;;
+  :[FH])
+    ac_file_inputs=
+    for ac_f
+    do
+      case $ac_f in
+      -) ac_f="$ac_tmp/stdin";;
+      *) # Look for the file first in the build tree, then in the source tree
+	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
+	 # because $ac_f cannot contain `:'.
+	 test -f "$ac_f" ||
+	   case $ac_f in
+	   [\\/$]*) false;;
+	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
+	   esac ||
+	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+      esac
+      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      as_fn_append ac_file_inputs " '$ac_f'"
+    done
+
+    # Let's still pretend it is `configure' which instantiates (i.e., don't
+    # use $as_me), people would be surprised to read:
+    #    /* config.h.  Generated by config.status.  */
+    configure_input='Generated from '`
+	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	`' by configure.'
+    if test x"$ac_file" != x-; then
+      configure_input="$ac_file.  $configure_input"
+      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+$as_echo "$as_me: creating $ac_file" >&6;}
+    fi
+    # Neutralize special characters interpreted by sed in replacement strings.
+    case $configure_input in #(
+    *\&* | *\|* | *\\* )
+       ac_sed_conf_input=`$as_echo "$configure_input" |
+       sed 's/[\\\\&|]/\\\\&/g'`;; #(
+    *) ac_sed_conf_input=$configure_input;;
+    esac
+
+    case $ac_tag in
+    *:-:* | *:-) cat >"$ac_tmp/stdin" \
+      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
+    esac
+    ;;
+  esac
+
+  ac_dir=`$as_dirname -- "$ac_file" ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+	 X"$ac_file" : 'X\(//\)[^/]' \| \
+	 X"$ac_file" : 'X\(//\)$' \| \
+	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$ac_file" |
+    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)[^/].*/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+  as_dir="$ac_dir"; as_fn_mkdir_p
+  ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  # A ".." for each directory in $ac_dir_suffix.
+  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  case $ac_top_builddir_sub in
+  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+  esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+  .)  # We are building in place.
+    ac_srcdir=.
+    ac_top_srcdir=$ac_top_builddir_sub
+    ac_abs_top_srcdir=$ac_pwd ;;
+  [\\/]* | ?:[\\/]* )  # Absolute name.
+    ac_srcdir=$srcdir$ac_dir_suffix;
+    ac_top_srcdir=$srcdir
+    ac_abs_top_srcdir=$srcdir ;;
+  *) # Relative name.
+    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+    ac_top_srcdir=$ac_top_build_prefix$srcdir
+    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+
+  case $ac_mode in
+  :F)
+  #
+  # CONFIG_FILE
+  #
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# If the template does not know about datarootdir, expand it.
+# FIXME: This hack should be removed a few years after 2.60.
+ac_datarootdir_hack=; ac_datarootdir_seen=
+ac_sed_dataroot='
+/datarootdir/ {
+  p
+  q
+}
+/@datadir@/p
+/@docdir@/p
+/@infodir@/p
+/@localedir@/p
+/@mandir@/p'
+case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
+*datarootdir*) ac_datarootdir_seen=yes;;
+*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+  ac_datarootdir_hack='
+  s&@datadir@&$datadir&g
+  s&@docdir@&$docdir&g
+  s&@infodir@&$infodir&g
+  s&@localedir@&$localedir&g
+  s&@mandir@&$mandir&g
+  s&\\\${datarootdir}&$datarootdir&g' ;;
+esac
+_ACEOF
+
+# Neutralize VPATH when `$srcdir' = `.'.
+# Shell code in configure.ac might set extrasub.
+# FIXME: do we really want to maintain this feature?
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_sed_extra="$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s|@configure_input@|$ac_sed_conf_input|;t t
+s&@top_builddir@&$ac_top_builddir_sub&;t t
+s&@top_build_prefix@&$ac_top_build_prefix&;t t
+s&@srcdir@&$ac_srcdir&;t t
+s&@abs_srcdir@&$ac_abs_srcdir&;t t
+s&@top_srcdir@&$ac_top_srcdir&;t t
+s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
+s&@builddir@&$ac_builddir&;t t
+s&@abs_builddir@&$ac_abs_builddir&;t t
+s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
+$ac_datarootdir_hack
+"
+eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
+  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+
+test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
+  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
+  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
+      "$ac_tmp/out"`; test -z "$ac_out"; } &&
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&5
+$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined.  Please make sure it is defined" >&2;}
+
+  rm -f "$ac_tmp/stdin"
+  case $ac_file in
+  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
+  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
+  esac \
+  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+ ;;
+
+
+  :C)  { $as_echo "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
+$as_echo "$as_me: executing $ac_file commands" >&6;}
+ ;;
+  esac
+
+
+  case $ac_file$ac_mode in
+    "default":C) chmod +x config/nspr-config ;;
+
+  esac
+done # for ac_tag
+
+
+as_fn_exit 0
+_ACEOF
+ac_clean_files=$ac_clean_files_save
+
+test $ac_write_fail = 0 ||
+  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
+
+
+# configure is writing to config.log, and then calls config.status.
+# config.status does its own redirection, appending to config.log.
+# Unfortunately, on DOS this fails, as config.log is still kept open
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded.  So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status.  When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+  ac_cs_success=:
+  ac_config_status_args=
+  test "$silent" = yes &&
+    ac_config_status_args="$ac_config_status_args --quiet"
+  exec 5>/dev/null
+  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+  exec 5>>config.log
+  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+  # would make configure fail if this is the last instruction.
+  $ac_cs_success || as_fn_exit 1
+fi
+if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+fi
+
diff --git a/nsprpub/configure.in b/nsprpub/configure.in
new file mode 100644
index 0000000000..d3d804795d
--- /dev/null
+++ b/nsprpub/configure.in
@@ -0,0 +1,2889 @@
+dnl -*- Mode: Autoconf; tab-width: 4; indent-tabs-mode: nil; -*-
+dnl 
+dnl This Source Code Form is subject to the terms of the Mozilla Public
+dnl License, v. 2.0. If a copy of the MPL was not distributed with this
+dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+AC_PREREQ(2.61)
+AC_INIT
+AC_CONFIG_SRCDIR([pr/include/nspr.h])
+
+AC_CONFIG_AUX_DIR(${srcdir}/build/autoconf)
+AC_CANONICAL_TARGET
+
+dnl ========================================================
+dnl = Defaults
+dnl ========================================================
+MOD_MAJOR_VERSION=4
+MOD_MINOR_VERSION=29
+MOD_PATCH_VERSION=0
+NSPR_MODNAME=nspr20
+_HAVE_PTHREADS=
+USE_PTHREADS=
+USE_USER_PTHREADS=
+USE_NSPR_THREADS=
+USE_N32=
+USE_X32=
+USE_64=
+USE_CPLUS=
+USE_IPV6=
+USE_MDUPDATE=
+_MACOSX_DEPLOYMENT_TARGET=
+_OPTIMIZE_FLAGS=-O
+_DEBUG_FLAGS=-g
+MOZ_DEBUG=1
+MOZ_OPTIMIZE=
+OBJDIR='$(OBJDIR_NAME)'
+OBJDIR_NAME=.
+OBJDIR_SUFFIX=OBJ
+NSINSTALL='$(MOD_DEPTH)/config/$(OBJDIR_NAME)/nsinstall'
+NOSUCHFILE=/no-such-file
+LIBNSPR='-L$(dist_libdir) -lnspr$(MOD_MAJOR_VERSION)'
+LIBPLC='-L$(dist_libdir) -lplc$(MOD_MAJOR_VERSION)'
+CYGWIN_WRAPPER=
+MACOS_SDK_DIR=
+NEXT_ROOT=
+MT=
+MOZ_OS2_HIGH_MEMORY=1
+PROFILE_GEN_CFLAGS=
+PROFILE_GEN_LDFLAGS=
+PROFILE_USE_CFLAGS=
+PROFILE_USE_LDFLAGS=
+
+dnl Link in libraries necessary to resolve all symbols for shared libs
+RESOLVE_LINK_SYMBOLS=
+
+dnl ========================================================
+dnl =
+dnl = Dont change the following lines.  Doing so breaks:
+dnl =
+dnl = CFLAGS="-foo" ./configure
+dnl =
+dnl ========================================================
+CFLAGS="${CFLAGS=}"
+CXXFLAGS="${CXXFLAGS=}"
+LDFLAGS="${LDFLAGS=}"
+DLLFLAGS="${DLLFLAGS=}"
+HOST_CFLAGS="${HOST_CFLAGS=}"
+HOST_LDFLAGS="${HOST_LDFLAGS=}"
+
+case "$target" in
+*-cygwin*|*-mingw*|*-msys*)
+    # Check to see if we are really running in a msvc environemnt
+    _WIN32_MSVC=
+    AC_CHECK_PROGS(CC, cl)
+    cat > conftest.c <<EOF
+#ifdef _MSC_VER
+COMPILER IS MSVC
+#endif
+EOF
+    read dummy <<EOF
+$($CC -E conftest.c 2>/dev/null | grep COMPILER)
+EOF
+    if test -n "$dummy"; then
+        _WIN32_MSVC=1
+        CXX=$CC
+    fi
+    rm -f conftest.c
+    ;;
+*-mks*)
+    _WIN32_MSVC=1
+    ;;
+esac
+
+if test -n "$_WIN32_MSVC"; then
+    SKIP_PATH_CHECKS=1
+    SKIP_COMPILER_CHECKS=1
+    SKIP_LIBRARY_CHECKS=1
+fi
+
+dnl ========================================================
+dnl = Android uses a very custom (hacky) toolchain; we need to do this
+dnl = here, so that the compiler checks can succeed
+dnl ========================================================
+
+AC_ARG_WITH(android-ndk,
+[  --with-android-ndk=DIR
+                          location where the Android NDK can be found],
+    android_ndk=$withval)
+
+AC_ARG_WITH(android-toolchain,
+[  --with-android-toolchain=DIR
+                          location of the Android toolchain],
+    android_toolchain=$withval)
+
+dnl The default android_version is different for each target cpu.
+case "$target_cpu" in
+arm)
+    android_version=5
+    ;;
+i?86|mipsel)
+    android_version=9
+    ;;
+esac
+
+AC_ARG_WITH(android-version,
+[  --with-android-version=VER
+                          Android platform version, default 5 for arm, 9 for x86/mips],
+    android_version=$withval)
+
+AC_ARG_WITH(android-platform,
+[  --with-android-platform=DIR
+                          location of platform dir],
+    android_platform=$withval)
+
+case "$target" in
+x86_64-linux*-android*)
+    android_tool_prefix="x86_64-linux-android"
+    ;;
+aarch64-linux*-android*)
+    android_tool_prefix="aarch64-linux-android"
+    ;;
+arm-linux*-android*|*-linuxandroid*)
+    android_tool_prefix="arm-linux-androideabi"
+    ;;
+i?86-*android*)
+    android_tool_prefix="i686-linux-android"
+    ;;
+mipsel-*android*)
+    android_tool_prefix="mipsel-linux-android"
+    ;;
+*)
+    android_tool_prefix="$target_os"
+    ;;
+esac
+
+case "$target" in
+*-android*|*-linuxandroid*)
+    if test -z "$android_ndk" ; then
+       AC_MSG_ERROR([You must specify --with-android-ndk=/path/to/ndk when targeting Android.])
+    fi
+
+    if test -z "$android_toolchain" ; then
+        AC_MSG_CHECKING([for android toolchain directory])
+
+        kernel_name=`uname -s | tr "[[:upper:]]" "[[:lower:]]"`
+
+        case "$target_cpu" in
+        arm)
+            target_name=arm-linux-androideabi-4.4.3
+            ;;
+        i?86)
+            target_name=x86-4.4.3
+            ;;
+        mipsel)
+            target_name=mipsel-linux-android-4.4.3
+            ;;
+        esac
+        android_toolchain="$android_ndk"/toolchains/$target_name/prebuilt/$kernel_name-x86
+
+        if test -d "$android_toolchain" ; then
+            AC_MSG_RESULT([$android_toolchain])
+        else
+            AC_MSG_ERROR([not found. You have to specify --with-android-toolchain=/path/to/ndk/toolchain.])
+        fi
+    fi
+
+    if test -z "$android_platform" ; then
+        AC_MSG_CHECKING([for android platform directory])
+
+        case "$target_cpu" in
+        arm)
+            target_name=arm
+            ;;
+        i?86)
+            target_name=x86
+            ;;
+        mipsel)
+            target_name=mips
+            ;;
+        esac
+
+        android_platform="$android_ndk"/platforms/android-"$android_version"/arch-"$target_name"
+
+        if test -d "$android_platform" ; then
+            AC_MSG_RESULT([$android_platform])
+        else
+            AC_MSG_ERROR([not found. You have to specify --with-android-platform=/path/to/ndk/platform.])
+        fi
+    fi
+
+    dnl Old NDK support. If minimum requirement is changed to NDK r8b,
+    dnl please remove this.
+    case "$target_cpu" in
+    i?86)
+        if ! test -e "$android_toolchain"/bin/"$android_tool_prefix"-gcc; then
+            dnl Old NDK toolchain name
+            android_tool_prefix="i686-android-linux"
+        fi
+        ;;
+    esac
+
+    dnl set up compilers
+    AS="$android_toolchain"/bin/"$android_tool_prefix"-as
+    CC="$android_toolchain"/bin/"$android_tool_prefix"-gcc
+    CXX="$android_toolchain"/bin/"$android_tool_prefix"-g++
+    CPP="$android_toolchain"/bin/"$android_tool_prefix"-cpp
+    LD="$android_toolchain"/bin/"$android_tool_prefix"-ld
+    AR="$android_toolchain"/bin/"$android_tool_prefix"-ar
+    RANLIB="$android_toolchain"/bin/"$android_tool_prefix"-ranlib
+    STRIP="$android_toolchain"/bin/"$android_tool_prefix"-strip
+
+    CPPFLAGS="-I$android_platform/usr/include $CPPFLAGS"
+    CFLAGS="-mandroid -I$android_platform/usr/include -fno-short-enums -fno-exceptions $CFLAGS"
+    CXXFLAGS="-mandroid -I$android_platform/usr/include -fpic -fno-short-enums -fno-exceptions $CXXFLAGS"
+    LDFLAGS="-mandroid -L$android_platform/usr/lib -Wl,-rpath-link=$android_platform/usr/lib --sysroot=$android_platform $LDFLAGS"
+
+    AC_DEFINE(ANDROID)
+    ;;
+esac
+
+dnl ========================================================
+dnl =
+dnl = Check options that may affect the compiler
+dnl =
+dnl ========================================================
+dist_prefix='${MOD_DEPTH}/dist'
+dist_bindir='${dist_prefix}/bin'
+dist_includedir='${dist_prefix}/include/nspr'
+dist_libdir='${dist_prefix}/lib'
+dnl If the --includedir option was not specified, add '/nspr' to autoconf's
+dnl default value of includedir.
+if test "${includedir}" = '${prefix}/include'; then
+    includedir='${prefix}/include/nspr'
+fi
+
+AC_ARG_WITH(dist-prefix,
+    [  --with-dist-prefix=DIST_PREFIX
+                          place build files in DIST_PREFIX [dist]],
+    dist_prefix=$withval)
+
+AC_ARG_WITH(dist-bindir,
+    [  --with-dist-bindir=DIR  build execuatables in DIR [DIST_PREFIX/bin]],
+    dist_bindir=$withval)
+
+AC_ARG_WITH(dist-includedir,
+    [  --with-dist-includedir=DIR
+                          build include files in DIR [DIST_PREFIX/include/nspr]],
+    dist_includedir=$withval)
+
+AC_ARG_WITH(dist-libdir,
+    [  --with-dist-libdir=DIR  build library files in DIR [DIST_PREFIX/lib]],
+    dist_libdir=$withval)
+
+AC_SUBST(dist_prefix)
+AC_SUBST(dist_bindir)
+AC_SUBST(dist_includedir)
+AC_SUBST(dist_libdir)
+
+dnl Check if NSPR is being compiled for Mozilla
+dnl Let --with-arg override environment setting
+dnl
+AC_ARG_WITH(mozilla,
+    [  --with-mozilla          Compile NSPR with Mozilla support],
+    [   if test "$withval" = "yes"; then
+            AC_DEFINE(MOZILLA_CLIENT)
+            MOZILLA_CLIENT=1
+	    else
+	        MOZILLA_CLIENT=
+	    fi],
+    [	if test -n "$MOZILLA_CLIENT"; then
+	        AC_DEFINE(MOZILLA_CLIENT)
+	    fi])
+
+AC_ARG_ENABLE(optimize,
+    [  --enable-optimize[=OPT] Enable code optimizations (ie. -O2) ],
+    [ if test "$enableval" != "no"; then
+          MOZ_OPTIMIZE=1
+          if test -n "$enableval" -a "$enableval" != "yes"; then
+            _OPTIMIZE_FLAGS=`echo $enableval | sed -e 's|\\\ | |g'`
+            _SAVE_OPTIMIZE_FLAGS=$_OPTIMIZE_FLAGS
+          fi
+      else
+          MOZ_OPTIMIZE=
+      fi ])
+
+AC_ARG_ENABLE(debug,
+    [  --enable-debug[=DBG]    Enable debugging (using compiler flags DBG)],
+    [ if test "$enableval" != "no"; then
+          MOZ_DEBUG=1
+          MOZ_DEBUG_SYMBOLS=1
+          if test -n "$enableval" -a "$enableval" != "yes"; then
+              _DEBUG_FLAGS=`echo $enableval | sed -e 's|\\\ | |g'`
+              _SAVE_DEBUG_FLAGS=$_DEBUG_FLAGS
+          fi
+      else
+          MOZ_DEBUG=
+      fi ],
+      MOZ_DEBUG_SYMBOLS=1)
+
+AC_ARG_ENABLE(debug-symbols,
+    [  --enable-debug-symbols[=DBG]    Enable debugging symbols
+                                       (using compiler flags DBG)],
+    [ if test "$enableval" != "no"; then
+          MOZ_DEBUG_SYMBOLS=1
+          if test -n "$enableval" -a "$enableval" != "yes"; then
+              if test -z "$_SAVE_DEBUG_FLAGS"; then
+                  _DEBUG_FLAGS=`echo $enableval | sed -e 's|\\\ | |g'`
+                  _SAVE_DEBUG_FLAGS=$_DEBUG_FLAGS
+              else
+                  AC_MSG_ERROR([--enable-debug-symbols flags cannot be used with --enable-debug flags])
+              fi
+          fi
+      else
+          MOZ_DEBUG_SYMBOLS=
+      fi ])
+
+AC_ARG_ENABLE(win32-target,
+    [  --enable-win32-target=\$t
+                          Specify win32 flavor. (WIN95 or WINNT)],
+    OS_TARGET=`echo $enableval | tr a-z A-Z`)
+
+
+AC_ARG_ENABLE(debug-rtl,
+    [  --enable-debug-rtl      Use the MSVC debug runtime library],
+    [ if test "$enableval" = "yes"; then
+	    USE_DEBUG_RTL=1
+      else
+	    USE_DEBUG_RTL=0
+      fi ])
+
+AC_ARG_ENABLE(static-rtl,
+    [  --enable-static-rtl     Use the MSVC static runtime library],
+    [ if test "$enableval" = "yes"; then
+	    USE_STATIC_RTL=1
+      fi ])
+
+AC_ARG_ENABLE(x32,
+    [  --enable-x32            Enable x32 ABI support (x86_64 only)],
+    [ if test "$enableval" = "yes"; then
+        USE_X32=1
+      else if test "$enableval" = "no"; then
+        USE_X32=
+      fi
+    fi ])
+
+AC_ARG_ENABLE(64bit,
+    [  --enable-64bit          Enable 64-bit support (on certain platforms)],
+    [ if test "$enableval" = "yes"; then
+	    USE_64=1
+      fi ])
+
+AC_ARG_ENABLE(mdupdate,
+    [  --enable-mdupdate       Enable use of certain compilers' mdupdate feature],
+    [ if test "$enableval" = "yes"; then
+	    USE_MDUPDATE=1
+      fi ])
+
+AC_ARG_ENABLE(cplus,
+    [  --enable-cplus          Enable some c++ api routines],
+    [ if test "$enableval" = "yes"; then
+	    USE_CPLUS=1
+      fi]) 
+
+AC_ARG_WITH(arm-kuser,
+    [  --with-arm-kuser        Use kuser helpers (Linux/ARM only)
+                          (Requires kernel 2.6.13 or later)],
+    [ if test "$withval" = "yes"; then
+	    AC_DEFINE(_PR_ARM_KUSER)
+      fi ])
+
+dnl ========================================================
+dnl = Mac OS X SDK support
+dnl ========================================================
+AC_ARG_WITH(macos-sdk,
+    [  --with-macos-sdk=dir    Location of platform SDK to use (Mac OS X only)],
+    MACOS_SDK_DIR=$withval)
+
+AC_ARG_ENABLE(macos-target,
+             [  --enable-macos-target=VER
+                          Set the minimum MacOS version needed at runtime
+                          [10.3 for ppc, 10.4 for x86]],
+             [_MACOSX_DEPLOYMENT_TARGET=$enableval])
+
+dnl ========================================================
+dnl =
+dnl = Set the threading model
+dnl =
+dnl ========================================================
+case "$target" in
+
+*-aix*)
+    case "${target_os}" in
+    aix3.2*)
+        USE_NSPR_THREADS=1
+        ;;
+    *)
+        USE_PTHREADS=1
+        ;;
+    esac
+    ;;
+
+esac
+
+dnl ========================================================
+dnl =
+dnl = Set the default C compiler
+dnl =
+dnl ========================================================
+if test -z "$CC"; then
+    case "$target" in
+
+    *-aix*)
+        if test -z "$USE_NSPR_THREADS"; then
+            CC=xlc_r
+        else
+            CC=xlc
+        fi
+    ;;
+
+    *-hpux*)
+        CC=cc
+    ;;
+
+    *-solaris*)
+        CC=cc
+    ;;
+
+    esac
+fi
+
+dnl ========================================================
+dnl =
+dnl = Set the default C++ compiler
+dnl =
+dnl ========================================================
+if test -z "$CXX"; then
+    case "$target" in
+
+    *-aix*)
+        if test -z "$USE_NSPR_THREADS"; then
+            CXX=xlC_r
+        else
+            CXX=xlC
+        fi
+    ;;
+
+    *-hpux*)
+        case "${target_os}" in
+        hpux10.30)
+            CXX=aCC
+            ;;
+        hpux11.*)
+            CXX=aCC
+            ;;
+        *)
+            CXX=CC
+            ;;
+        esac
+    ;;
+
+    *-solaris*)
+        CXX=CC
+    ;;
+
+    esac
+fi
+
+if test -z "$SKIP_PATH_CHECKS"; then
+    AC_PATH_PROG(WHOAMI, $WHOAMI whoami, echo not_whoami)
+fi
+
+if test -n "$MOZ_DEBUG"; then
+    AC_DEFINE(DEBUG)
+    DEFINES="$DEFINES -UNDEBUG"
+
+    case "${target_os}" in
+    mks*|cygwin*|mingw*|msys*|os2*)
+        DEFINES="$DEFINES -DDEBUG_`echo ${USERNAME} | sed -e 's| |_|g'`"
+        ;;
+    *)
+        DEFINES="$DEFINES -DDEBUG_`$WHOAMI`"
+        ;;
+    esac
+else
+    AC_DEFINE(NDEBUG)
+    DEFINES="$DEFINES -UDEBUG"
+fi
+
+if test -z "$SKIP_COMPILER_CHECKS"; then
+dnl ========================================================
+dnl Checks for compilers.
+dnl ========================================================
+if test "$target" != "$host"; then
+    echo "cross compiling from $host to $target"
+    cross_compiling=yes
+
+    case "$build:$target" in
+      powerpc-apple-darwin8*:i?86-apple-darwin*)
+        dnl The Darwin cross compiler doesn't necessarily point itself at a
+        dnl root that has libraries for the proper architecture, it defaults
+        dnl to the system root.  The libraries in the system root on current
+        dnl versions of PPC OS X 10.4 aren't fat, so these target compiler
+        dnl checks will fail.  Fake a working SDK in that case.
+        _SAVE_CFLAGS=$CFLAGS
+        _SAVE_CXXFLAGS=$CXXFLAGS
+        CFLAGS="-isysroot /Developer/SDKs/MacOSX10.4u.sdk $CFLAGS"
+        CXXFLAGS="-isysroot /Developer/SDKs/MacOSX10.4u.sdk $CXXFLAGS"
+        ;;
+    esac
+
+    AC_CHECK_PROGS(CC, $CC "${target_alias}-gcc" "${target}-gcc", echo)
+    unset ac_cv_prog_CC
+    dnl Now exit the conditional block to invoke AC_PROG_CC.
+fi
+
+dnl In the latest versions of autoconf, AC_PROG_CC is a one-shot macro,
+dnl declared with AC_DEFUN_ONCE. So it must not be expanded inside a
+dnl conditional block. Invoke AC_PROG_CC outside any conditional block
+dnl and before invoking AC_TRY_COMPILE (which requires AC_PROG_CC).
+AC_PROG_CC
+
+dnl Reenter the conditional blocks after invoking AC_PROG_CC.
+if test "$target" != "$host"; then
+    if test -n "$USE_CPLUS"; then
+        AC_CHECK_PROGS(CXX, $CXX "${target_alias}-g++" "${target}-g++", echo)
+        unset ac_cv_prog_CXX
+        AC_PROG_CXX
+    fi
+
+    case "$build:$target" in
+      powerpc-apple-darwin8*:i?86-apple-darwin*|*:arm*-apple-darwin*)
+        dnl Revert the changes made above.  From this point on, the target
+        dnl compiler will never be used without applying the SDK to CFLAGS
+        dnl (see --with-macos-sdk below).
+        CFLAGS=$_SAVE_CFLAGS
+        CXXFLAGS=$_SAVE_CXXFLAGS
+        ;;
+    esac
+
+    AC_CHECK_PROGS(RANLIB, $RANLIB "${target_alias}-ranlib" "${target}-ranlib", echo)
+    AC_CHECK_PROGS(AR, $AR "${target_alias}-ar" "${target}-ar", echo)
+    AC_CHECK_PROGS(AS, $AS "${target_alias}-as" "${target}-as", echo)
+    AC_CHECK_PROGS(LD, $LD "${target_alias}-ld" "${target}-ld", echo)
+    AC_CHECK_PROGS(STRIP, $STRIP "${target_alias}-strip" "${target}-strip", echo)
+    AC_CHECK_PROGS(WINDRES, $WINDRES "${target_alias}-windres" "${target}-windres", echo)
+
+    _SAVE_CC="$CC"
+    _SAVE_CFLAGS="$CFLAGS"
+    _SAVE_LDFLAGS="$LDFLAGS"
+
+    AC_MSG_CHECKING([for $host compiler])
+    AC_CHECK_PROGS(HOST_CC, $HOST_CC gcc cc /usr/ucb/cc, "")
+    if test -z "$HOST_CC"; then
+        AC_MSG_ERROR([no acceptable cc found in \$PATH])
+    fi
+    AC_MSG_RESULT([$HOST_CC])
+
+    CC="$HOST_CC"
+    CFLAGS="$HOST_CFLAGS"
+    LDFLAGS="$HOST_LDFLAGS"
+
+    AC_MSG_CHECKING([whether the $host compiler ($HOST_CC $HOST_CFLAGS $HOST_LDFLAGS) works])
+    AC_TRY_COMPILE([], [return 0;],
+        [AC_MSG_RESULT([yes])],
+        [AC_MSG_ERROR([installation or configuration problem: $host compiler $HOST_CC cannot create executables.])] )
+
+    CC=$_SAVE_CC
+    CFLAGS=$_SAVE_CFLAGS
+    LDFLAGS=$_SAVE_LDFLAGS
+else
+    if test -n "$USE_CPLUS"; then
+        if test "$CC" = "cl" -a -z "$CXX"; then
+            CXX=$CC
+        else
+            AC_PROG_CXX
+        fi
+    fi
+    AC_PROG_RANLIB
+    AC_PATH_PROGS(AS, as, $CC)
+    AC_PATH_PROGS(AR, ar, echo not_ar)
+    AC_PATH_PROGS(LD, ld link, echo not_ld)
+    AC_PATH_PROGS(STRIP, strip, echo not_strip)
+    AC_PATH_PROGS(WINDRES, windres, echo not_windres)
+    if test -z "$HOST_CC"; then
+        HOST_CC="$CC"
+    fi
+    if test -z "$HOST_CFLAGS"; then
+        HOST_CFLAGS="$CFLAGS"
+    fi
+fi
+
+AC_PROG_CPP
+
+if test "$GCC" = "yes"; then
+    GNU_CC=1
+fi
+if test "$GXX" = "yes"; then
+    GNU_CXX=1
+fi
+if test "`echo | $AS -v 2>&1 | grep -c GNU`" != "0"; then
+    GNU_AS=1
+fi
+rm -f a.out
+
+case "$build:$target" in
+    i?86-apple-darwin*:powerpc-apple-darwin*)
+        dnl cross_compiling will have erroneously been set to "no" in this
+        dnl case, because the x86 build host is able to run ppc code in a
+        dnl translated environment, making a cross compiler appear native.
+        cross_compiling=yes
+        ;;
+esac
+
+if test "$cross_compiling"  = "yes"; then
+    CROSS_COMPILE=1
+else
+    CROSS_COMPILE=
+fi
+
+dnl ========================================================
+dnl Check for gcc -pipe support
+dnl ========================================================
+AC_MSG_CHECKING([for gcc -pipe support])
+if test -n "$GNU_CC" && test -n "$GNU_CXX" && test -n "$GNU_AS"; then
+    echo '#include <stdio.h>' > dummy-hello.c
+    echo 'int main() { printf("Hello World\n"); return 0; }' >> dummy-hello.c
+    ${CC} -S dummy-hello.c -o dummy-hello.s 2>&5
+    cat dummy-hello.s | ${AS} -o dummy-hello.S - 2>&5
+    if test $? = 0; then
+        _res_as_stdin="yes"
+    else
+        _res_as_stdin="no"
+    fi
+    if test "$_res_as_stdin" = "yes"; then
+        _SAVE_CFLAGS=$CFLAGS
+        CFLAGS="$CFLAGS -pipe"
+        AC_TRY_COMPILE( [ #include <stdio.h> ],
+            [printf("Hello World\n");],
+            [_res_gcc_pipe="yes"],
+            [_res_gcc_pipe="no"] )
+        CFLAGS=$_SAVE_CFLAGS
+    fi
+    if test "$_res_as_stdin" = "yes" && test "$_res_gcc_pipe" = "yes"; then
+        _res="yes";
+        CFLAGS="$CFLAGS -pipe"
+        CXXFLAGS="$CXXFLAGS -pipe"
+    else
+        _res="no"
+    fi
+    rm -f dummy-hello.c dummy-hello.s dummy-hello.S dummy-hello a.out
+    AC_MSG_RESULT([$_res])
+else
+    AC_MSG_RESULT([no])
+fi
+
+dnl ========================================================
+dnl Check for pragma diagnostic
+dnl ========================================================
+
+AC_MSG_CHECKING([for pragma diagnostic])
+if test "$GNU_CC" = "1"; then
+    cat >dummy-hello.c <<EOF
+#ifdef _PR_HAS_PRAGMA_DIAGNOSTIC
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-but-set-variable"
+#endif
+int main() {
+    char *dummy = "";
+    return 0;
+}
+EOF
+    ${CC} -Werror=unused-but-set-variable -S dummy-hello.c -o dummy-hello.s 2>&5
+    if test $? != 0; then
+        ${CC} -Werror=unused-but-set-variable -D_PR_HAS_PRAGMA_DIAGNOSTIC -S dummy-hello.c -o dummy-hello.s 2>&5
+        if test $? = 0; then
+            CFLAGS="$CFLAGS -D_PR_HAS_PRAGMA_DIAGNOSTIC=1"
+            _res=yes
+        else
+            _res=no
+        fi
+    else
+        _res=no
+    fi
+    rm -f dummy-hello.c dummy-hello.s
+    AC_MSG_RESULT([$_res])
+else
+    AC_MSG_RESULT([no])
+fi
+
+dnl ========================================================
+dnl Profile guided optimization
+dnl ========================================================
+dnl Test for profiling options
+dnl Under gcc 3.4+, use -fprofile-generate/-fprofile-use
+
+_SAVE_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -fprofile-generate -fprofile-correction"
+
+AC_MSG_CHECKING([whether C compiler supports -fprofile-generate])
+AC_TRY_COMPILE([], [return 0;],
+               [ PROFILE_GEN_CFLAGS="-fprofile-generate"
+                 result="yes" ], result="no")
+AC_MSG_RESULT([$result])
+
+if test $result = "yes"; then
+   PROFILE_GEN_LDFLAGS="-fprofile-generate"
+   PROFILE_USE_CFLAGS="-fprofile-use -fprofile-correction -Wcoverage-mismatch"
+   PROFILE_USE_LDFLAGS="-fprofile-use"
+fi
+
+CFLAGS="$_SAVE_CFLAGS"
+
+dnl ===============================================================
+dnl Check for .hidden assembler directive and visibility attribute.
+dnl Borrowed from glibc configure.in
+dnl ===============================================================
+if test "$GNU_CC"; then
+    AC_CACHE_CHECK(for visibility(hidden) attribute,
+        ac_cv_visibility_hidden,
+        [cat > conftest.c <<EOF
+        int foo __attribute__ ((visibility ("hidden"))) = 1;
+EOF
+        ac_cv_visibility_hidden=no
+        if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
+            if grep '\.hidden.*foo' conftest.s >/dev/null; then
+                ac_cv_visibility_hidden=yes
+            fi
+        fi
+        rm -f conftest.[cs]
+        ])
+    if test "$ac_cv_visibility_hidden" = "yes"; then
+        AC_DEFINE(HAVE_VISIBILITY_HIDDEN_ATTRIBUTE)
+        AC_CACHE_CHECK(for visibility pragma support,
+            ac_cv_visibility_pragma,
+            [cat > conftest.c <<EOF
+#pragma GCC visibility push(hidden)
+            int foo_hidden = 1;
+#pragma GCC visibility push(default)
+            int foo_default = 1;
+EOF
+            ac_cv_visibility_pragma=no
+            if ${CC-cc} -Werror -S conftest.c -o conftest.s >/dev/null 2>&1; then
+                if grep '\.hidden.*foo_hidden' conftest.s >/dev/null; then
+                    if ! grep '\.hidden.*foo_default' conftest.s > /dev/null; then
+                        ac_cv_visibility_pragma=yes
+                    fi
+                fi
+            fi
+            rm -f conftest.[cs]
+            ])
+        if test "$ac_cv_visibility_pragma" = "yes"; then
+            AC_DEFINE(HAVE_VISIBILITY_PRAGMA)
+            # To work around a build problem on Linux x86-64 (Bugzilla bug
+            # 293438), we use the -fvisibility=hidden flag.  This flag is less
+            # optimal than #pragma GCC visibility push(hidden) because the flag
+            # assumes that symbols defined outside the current source file have
+            # the default visibility.  This has the advantage that we don't need
+            # to wrap system header files, but has the disadvantage that calls
+            # to hidden symbols defined in other source files cannot be
+            # optimized by the compiler.  The -fvisibility=hidden flag does
+            # hide and export symbols correctly.
+            #VISIBILITY_FLAGS='-I$(dist_includedir)/system_wrappers -include $(topsrcdir)/config/gcc_hidden.h'
+            #WRAP_SYSTEM_INCLUDES=1
+            VISIBILITY_FLAGS="-fvisibility=hidden"
+            WRAP_SYSTEM_INCLUDES=
+        fi
+    fi
+fi # GNU_CC
+
+fi # SKIP_COMPILER_CHECKS
+
+dnl ========================================================
+dnl Checks for programs.
+dnl ========================================================
+if test -z "$SKIP_PATH_CHECKS"; then
+    AC_PATH_PROGS(PERL, perl5 perl, echo not_perl)
+elif test -z "$PERL"; then
+    PERL=perl
+fi
+
+dnl ========================================================
+dnl Default platform specific options
+dnl ========================================================
+OBJ_SUFFIX=o
+LIB_SUFFIX=a
+DLL_SUFFIX=so
+ASM_SUFFIX=s
+MKSHLIB='$(LD) $(DSO_LDOPTS) -o $@'
+PR_MD_ASFILES=
+PR_MD_CSRCS=
+PR_MD_ARCH_DIR=unix
+AR_FLAGS='cr $@'
+AS='$(CC)'
+ASFLAGS='$(CFLAGS)'
+
+if test -n "$CROSS_COMPILE"; then
+    OS_ARCH=`echo $target_os | sed -e 's|/|_|g'`
+    OS_RELEASE=
+    OS_TEST="${target_cpu}"
+    case "${target_os}" in
+        linux*)       OS_ARCH=Linux ;;
+        solaris*)     OS_ARCH=SunOS OS_RELEASE=5 ;;
+        mingw*)       OS_ARCH=WINNT CPU_ARCH=x86 ;;
+        cygwin*)      OS_ARCH=WINNT ;;
+        darwin*)      OS_ARCH=Darwin ;;
+        riscos*)      OS_ARCH=RISCOS ;;
+    esac
+else
+    OS_ARCH=`uname -s | sed -e 's|/|_|g'`
+    OS_RELEASE=`uname -r`
+    OS_TEST=`uname -m`
+fi
+
+if test "$OS_ARCH" = "AIX"; then
+    OS_RELEASE=`uname -v`.`uname -r`
+fi
+
+if test "$OS_ARCH" = "FreeBSD"; then
+    OS_RELEASE=`echo $OS_RELEASE | sed 's/-.*//'`
+fi
+
+if test "$OS_ARCH" = "Linux"; then
+    OS_RELEASE=`echo $OS_RELEASE | sed 's/-.*//'`
+    OS_RELEASE=`echo $OS_RELEASE | awk -F\. '{ print $1 "." $2 }'`
+fi
+
+#######################################################################
+# Master "Core Components" macros for getting the OS target           #
+#######################################################################
+
+#
+# Note: OS_TARGET should be specified on the command line for gmake.
+# When OS_TARGET=WIN95 is specified, then a Windows 95 target is built.
+# The difference between the Win95 target and the WinNT target is that
+# the WinNT target uses Windows NT specific features not available
+# in Windows 95. The Win95 target will run on Windows NT, but (supposedly)
+# at lesser performance (the Win95 target uses threads; the WinNT target
+# uses fibers).
+#
+# If OS_TARGET is not specified, it defaults to $(OS_ARCH), i.e., no
+# cross-compilation.
+#
+
+#
+# The following hack allows one to build on a WIN95 machine (as if
+# s/he were cross-compiling on a WINNT host for a WIN95 target).
+# It also accomodates for MKS's uname.exe.  If you never intend
+# to do development on a WIN95 machine, you don't need this hack.
+#
+case "$OS_ARCH" in
+Windows_95)
+    OS_ARCH=Windows_NT
+    OS_TARGET=WIN95
+    ;;
+Windows_98)
+    OS_ARCH=Windows_NT
+    OS_TARGET=WIN95
+    ;;
+CYGWIN_9*|CYGWIN_ME*)
+    OS_ARCH='CYGWIN_NT-4.0'
+    OS_TARGET=WIN95
+    ;;
+OS_2)
+    OS_ARCH=OS2
+    OS_TARGET=OS2
+    ;;
+esac
+
+#
+# On WIN32, we also define the variable CPU_ARCH.
+#
+
+case "$OS_ARCH" in
+Windows_NT)
+#
+# If uname -s returns "Windows_NT", we assume that we are using
+# the uname.exe in MKS toolkit.
+#
+# The -r option of MKS uname only returns the major version number.
+# So we need to use its -v option to get the minor version number.
+# Moreover, it doesn't have the -p option, so we need to use uname -m.
+#
+    OS_ARCH=WINNT
+    OS_MINOR_RELEASE=`uname -v`
+    if test "$OS_MINOR_RELEASE" = "00"; then
+        OS_MINOR_RELEASE=0
+    fi
+    OS_RELEASE="${OS_RELEASE}.${OS_MINOR_RELEASE}"
+    CPU_ARCH=`uname -m`
+    #
+    # MKS's uname -m returns "586" on a Pentium machine.
+    #
+    if echo "$CPU_ARCH" | grep -c 86 >/dev/null; then
+        CPU_ARCH=x86
+    fi
+    ;;
+CYGWIN_NT*|MINGW*_NT*|MSYS_NT*)
+#
+# If uname -s returns "CYGWIN_NT-4.0", we assume that we are using
+# the uname.exe in the Cygwin tools.
+# If uname -s returns "MINGW32_NT-5.1", we assume that we are using
+# the uname.exe in the MSYS tools.
+# If uname -s returns "MSYS_NT-6.3", we assume that we are using
+# the uname.exe in the MSYS2 tools.
+#
+    OS_RELEASE=`expr $OS_ARCH : '.*NT-\(.*\)'`
+    OS_ARCH=WINNT
+    CPU_ARCH=`uname -m`
+    #
+    # Cygwin's uname -m returns "i686" on a Pentium Pro machine.
+    #
+    if echo "$CPU_ARCH" | grep -c 86 >/dev/null; then
+        CPU_ARCH=x86
+    fi
+    ;;
+esac
+
+if test -n "$MOZILLA_CLIENT" && test "$OS_ARCH" = "WINNT"; then
+    OS_TARGET=WIN95
+    if test -n "$MOZ_DEBUG" -a -z "$USE_DEBUG_RTL"; then
+        USE_DEBUG_RTL=1
+    fi
+fi
+if test -z "$OS_TARGET"; then
+    OS_TARGET=$OS_ARCH
+fi
+if test "$OS_TARGET" = "WIN95"; then
+    OS_RELEASE="4.0"
+fi
+OS_CONFIG="${OS_TARGET}${OS_RELEASE}"
+
+dnl ========================================================
+dnl Enable high-memory support on OS/2 by default.
+dnl ========================================================
+AC_ARG_ENABLE(os2-high-mem,
+    [  --disable-os2-high-mem  Disable high-memory support on OS/2],
+    [ if test "$enableval" = "no"; then
+        MOZ_OS2_HIGH_MEMORY=
+      else
+        MOZ_OS2_HIGH_MEMORY=1
+      fi ])
+
+dnl ========================================================
+dnl = ARM toolchain tweaks
+dnl ========================================================
+
+dnl Defaults
+MOZ_ALIGN=toolchain-default
+
+case "$target" in
+arm*-android*|arm*-linuxandroid*)
+    MOZ_THUMB=yes
+    MOZ_ARCH=armv7-a
+    MOZ_FPU=vfp
+    MOZ_FLOAT_ABI=softfp
+    MOZ_SOFT_FLOAT=yes
+    MOZ_ALIGN=no
+    ;;
+arm*-*)
+    if test -n "$MOZ_PLATFORM_MAEMO"; then
+        MOZ_THUMB=no
+        MOZ_ARCH=armv7-a
+        MOZ_FLOAT_ABI=softfp
+    fi
+    if test "$MOZ_PLATFORM_MAEMO" = 6; then
+        MOZ_THUMB=yes
+    fi
+    ;;
+esac
+
+dnl Kept for compatibility with some buildbot mozconfig
+AC_ARG_ENABLE(thumb2, [], MOZ_THUMB=$enableval)
+
+AC_ARG_WITH(thumb,
+[  --with-thumb[[=yes|no|toolchain-default]]]
+[                          Use Thumb instruction set (-mthumb)],
+    if test -z "$GNU_CC"; then
+        AC_MSG_ERROR([--with-thumb is not supported on non-GNU toolchain-defaults])
+    fi
+    MOZ_THUMB=$withval)
+
+AC_ARG_WITH(thumb-interwork,
+[  --with-thumb-interwork[[=yes|no|toolchain-default]]
+                           Use Thumb/ARM instuctions interwork (-mthumb-interwork)],
+    if test -z "$GNU_CC"; then
+        AC_MSG_ERROR([--with-thumb-interwork is not supported on non-GNU toolchain-defaults])
+    fi
+    MOZ_THUMB_INTERWORK=$withval)
+
+AC_ARG_WITH(arch,
+[  --with-arch=[[type|toolchain-default]]
+                           Use specific CPU features (-march=type)],
+    if test -z "$GNU_CC"; then
+        AC_MSG_ERROR([--with-arch is not supported on non-GNU toolchain-defaults])
+    fi
+    MOZ_ARCH=$withval)
+
+AC_ARG_WITH(fpu,
+[  --with-fpu=[[type|toolchain-default]]
+                           Use specific FPU type (-mfpu=type)],
+    if test -z "$GNU_CC"; then
+        AC_MSG_ERROR([--with-fpu is not supported on non-GNU toolchain-defaults])
+    fi
+    MOZ_FPU=$withval)
+
+AC_ARG_WITH(float-abi,
+[  --with-float-abi=[[type|toolchain-default]]
+                           Use specific arm float ABI (-mfloat-abi=type)],
+    if test -z "$GNU_CC"; then
+        AC_MSG_ERROR([--with-float-abi is not supported on non-GNU toolchain-defaults])
+    fi
+    MOZ_FLOAT_ABI=$withval)
+
+AC_ARG_WITH(soft-float,
+[  --with-soft-float[[=yes|no|toolchain-default]]
+                           Use soft float library (-msoft-float)],
+    if test -z "$GNU_CC"; then
+        AC_MSG_ERROR([--with-soft-float is not supported on non-GNU toolchain-defaults])
+    fi
+    MOZ_SOFT_FLOAT=$withval)
+
+case "$MOZ_ARCH" in
+toolchain-default|"")
+    arch_flag=""
+    ;;
+*)
+    arch_flag="-march=$MOZ_ARCH"
+    ;;
+esac
+
+case "$MOZ_THUMB" in
+yes)
+    MOZ_THUMB2=1
+    thumb_flag="-mthumb"
+    ;;
+no)
+    MOZ_THUMB2=
+    thumb_flag="-marm"
+    ;;
+*)
+    _SAVE_CFLAGS="$CFLAGS"
+    CFLAGS="$arch_flag"
+    AC_TRY_COMPILE([],[return sizeof(__thumb2__);],
+        MOZ_THUMB2=1,
+        MOZ_THUMB2=)
+    CFLAGS="$_SAVE_CFLAGS"
+    thumb_flag=""
+    ;;
+esac
+
+case "$MOZ_THUMB_INTERWORK" in
+yes)
+    thumb_interwork_flag="-mthumb-interwork"
+    ;;
+no)
+    thumb_interwork_flag="-mno-thumb-interwork"
+    ;;
+*) # toolchain-default
+    thumb_interwork_flag=""
+    ;;
+esac
+
+case "$MOZ_FPU" in
+toolchain-default|"")
+    fpu_flag=""
+    ;;
+*)
+    fpu_flag="-mfpu=$MOZ_FPU"
+    ;;
+esac
+
+case "$MOZ_FLOAT_ABI" in
+toolchain-default|"")
+    float_abi_flag=""
+    ;;
+*)
+    float_abi_flag="-mfloat-abi=$MOZ_FLOAT_ABI"
+    ;;
+esac
+
+case "$MOZ_SOFT_FLOAT" in
+yes)
+    soft_float_flag="-msoft-float"
+    ;;
+no)
+    soft_float_flag="-mno-soft-float"
+    ;;
+*) # toolchain-default
+    soft_float_flag=""
+    ;;
+esac
+
+case "$MOZ_ALIGN" in
+toolchain-default|"")
+    align_flag=""
+    ;;
+no)
+    align_flag="-mno-unaligned-access"
+    ;;
+yes)
+    align_flag="-munaligned-access"
+    ;;
+*)
+    align_flag=""
+    ;;
+esac
+
+if test -n "$align_flag"; then
+  _SAVE_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS $align_flag"
+  AC_MSG_CHECKING(whether alignment flag ($align_flag) is supported)
+  AC_TRY_COMPILE([],[],,align_flag="")
+  CFLAGS="$_SAVE_CFLAGS"
+fi
+
+dnl Use echo to avoid accumulating space characters
+all_flags=`echo $arch_flag $thumb_flag $thumb_interwork_flag $fpu_flag $float_abi_flag $soft_float_flag $align_flag`
+if test -n "$all_flags"; then
+    _SAVE_CFLAGS="$CFLAGS"
+    CFLAGS="$all_flags"
+    AC_MSG_CHECKING(whether the chosen combination of compiler flags ($all_flags) works)
+    AC_TRY_COMPILE([],[return 0;],
+        AC_MSG_RESULT([yes]),
+        AC_MSG_ERROR([no]))
+
+    CFLAGS="$_SAVE_CFLAGS $all_flags"
+    CXXFLAGS="$CXXFLAGS $all_flags"
+    ASFLAGS="$ASFLAGS $all_flags"
+    if test -n "$thumb_flag"; then
+        LDFLAGS="$LDFLAGS $thumb_flag"
+    fi
+fi
+
+dnl ========================================================
+dnl Override of system specific host options
+dnl ========================================================
+case "$host" in
+*-mingw*|*-msys*)
+    NSINSTALL=nsinstall
+    ;;
+*-cygwin*|*-mks*)
+    NSINSTALL='$(CYGWIN_WRAPPER) nsinstall'
+    if test `echo "${PATH}" | grep -c \;` = 0; then
+        CYGWIN_WRAPPER='sh $(topsrcdir)/build/cygwin-wrapper'
+    fi
+    ;;
+*os2*)
+    ;;
+*)
+    HOST_CFLAGS="$HOST_CFLAGS -DXP_UNIX"
+    ;;
+esac
+
+dnl ========================================================
+dnl Override of system specific target options
+dnl ========================================================
+case "$target" in
+
+*-aix*)
+    AC_DEFINE(XP_UNIX)
+    AC_DEFINE(AIX)
+    AC_DEFINE(SYSV)
+    DSO_LDOPTS='-brtl -bnortllib -bM:SRE -bnoentry -bexpall -blibpath:/usr/lib:/lib'
+    AC_CHECK_HEADER(sys/atomic_op.h, AC_DEFINE(AIX_HAVE_ATOMIC_OP_H))
+    case "${target_os}" in
+    aix3.2*)
+        AC_DEFINE(AIX_RENAME_SELECT)
+        AC_DEFINE(_PR_NO_LARGE_FILES)
+        AIX_LINK_OPTS='-bnso -berok'
+        PR_MD_ASFILES=os_AIX.s
+        ;;
+    aix4.1*)
+        AC_DEFINE(AIX_TIMERS)
+        AC_DEFINE(_PR_NO_LARGE_FILES)
+        AC_DEFINE(AIX4_1)
+        MKSHLIB=
+        DSO_LDOPTS=
+        AIX_LINK_OPTS='-bnso -berok'
+        LIBNSPR='-L$(dist_libdir) -lnspr$(MOD_MAJOR_VERSION)_shr'
+        LIBPLC='-L$(dist_libdir) -lplc$(MOD_MAJOR_VERSION)_shr'
+        ;;
+    aix4.2*)
+        AC_DEFINE(AIX_TIMERS)
+        AC_DEFINE(_PR_HAVE_OFF64_T)
+        AIX_LINK_OPTS='-brtl -bnso -berok'
+        ;;
+    aix4.3*)
+        AC_DEFINE(AIX_TIMERS)
+        AC_DEFINE(_PR_HAVE_OFF64_T)
+        AC_DEFINE(AIX4_3_PLUS)
+        AC_DEFINE(HAVE_SOCKLEN_T)
+        AC_DEFINE(HAVE_FCNTL_FILE_LOCKING)
+        USE_IPV6=1
+        AIX_LINK_OPTS='-brtl -bnso -berok'
+        ;;
+    *)
+        AC_DEFINE(AIX_TIMERS)
+        AC_DEFINE(_PR_HAVE_OFF64_T)
+        AC_DEFINE(AIX4_3_PLUS)
+        AC_DEFINE(HAVE_SOCKLEN_T)
+        AC_DEFINE(HAVE_FCNTL_FILE_LOCKING)
+        USE_IPV6=1
+        AIX_LINK_OPTS='-brtl -bnso -berok'
+        ;;
+    esac
+    CFLAGS="$CFLAGS -qro -qroconst"
+    AIX_WRAP='$(DIST)/lib/aixwrap.o'
+    AIX_TMP='./_aix_tmp.o'
+    if test -n "$USE_64"; then
+        MDCPUCFG_H=_aix64.cfg
+        OBJECT_MODE=64
+    else
+        MDCPUCFG_H=_aix32.cfg
+    fi
+    PR_MD_CSRCS=aix.c
+    RESOLVE_LINK_SYMBOLS=1
+    ;;
+        
+*-bsdi*)
+    AC_DEFINE(XP_UNIX)
+    AC_DEFINE(BSDI)
+    AC_DEFINE(NEED_BSDREGEX)
+
+    CFLAGS="$CFLAGS -Wall -Wno-format"
+    CXXFLAGS="$CXXFLAGS -Wall -Wno-format"
+
+    if echo "$OS_TEST" | grep -c 86 >/dev/null; then
+        CPU_ARCH=x86
+    elif echo "$OS_TEST" | grep -c sparc >/dev/null; then 
+        CPU_ARCH=sparc
+    fi
+
+    MDCPUCFG_H=_bsdi.cfg
+    PR_MD_CSRCS=bsdi.c
+
+    DSO_LDOPTS=-r
+
+    case "$target_os" in
+    bsdi1.1*)
+        AC_DEFINE(_PR_BSDI_JMPBUF_IS_ARRAY)
+        AC_DEFINE(_PR_STAT_HAS_ONLY_ST_ATIME)
+        AC_DEFINE(_PR_NEED_H_ERRNO)
+        MKSHLIB=
+        DSO_CFLAGS=
+        DSO_LDOPTS=
+        ;;
+
+    bsdi2.1*)
+        AC_DEFINE(_PR_TIMESPEC_HAS_TS_SEC)
+        AC_DEFINE(_PR_BSDI_JMPBUF_IS_ARRAY)
+        AC_DEFINE(HAVE_DLL)
+        AC_DEFINE(USE_DLFCN)
+        AC_DEFINE(_PR_STAT_HAS_ST_ATIMESPEC)
+        PR_MD_ASFILES=os_BSD_OS_386_2.s
+        ;;
+
+    bsdi4.* | bsdi5.*)
+        AC_DEFINE(_PR_SELECT_CONST_TIMEVAL)
+        AC_DEFINE(_PR_BSDI_JMPBUF_IS_STRUCT)
+        AC_DEFINE(HAVE_DLL)
+        AC_DEFINE(USE_DLFCN)
+        AC_DEFINE(_PR_STAT_HAS_ST_ATIMESPEC)
+        MKSHLIB='$(CC) -o $@ $(DSO_LDOPTS)'
+        DSO_CFLAGS=-fPIC
+        DSO_LDOPTS='-shared -Wl,-soname,$(@:$(OBJDIR)/%.so=%.so)'
+        STRIP="$STRIP -d"
+        case "$target_os" in
+        bsdi4.2* | bsdi4.3* | bsdi5.*)
+            AC_DEFINE(_PR_HAVE_GETPROTO_R)
+            AC_DEFINE(_PR_HAVE_GETPROTO_R_POINTER)
+            ;;
+        esac
+        ;;
+    *)
+        AC_DEFINE(_PR_SELECT_CONST_TIMEVAL)
+        AC_DEFINE(_PR_BSDI_JMPBUF_IS_STRUCT)
+        AC_DEFINE(HAVE_DLL)
+        AC_DEFINE(USE_DLFCN)
+        AC_DEFINE(_PR_STAT_HAS_ST_ATIMESPEC)
+        ;;
+    esac
+
+    ;;
+
+*-darwin*)
+    AC_DEFINE(XP_UNIX)
+    AC_DEFINE(DARWIN)
+    AC_DEFINE(HAVE_BSD_FLOCK)
+    AC_DEFINE(HAVE_SOCKLEN_T)
+    AC_DEFINE(HAVE_POINTER_LOCALTIME_R)
+    changequote(,)
+    HOST_DARWIN_MAJOR=`echo "$build_os" | sed -E -e 's/^darwin([0-9]+).*$/\1/'`
+    changequote([,])
+    if test "$HOST_DARWIN_MAJOR" -ge 15 ; then
+        AC_DEFINE(HAS_CONNECTX)
+    fi
+    AS='$(CC) -x assembler-with-cpp'
+    CFLAGS="$CFLAGS -Wall -fno-common"
+    case "${target_cpu}" in
+        arm*)
+            CPU_ARCH=arm
+            ;;
+        i*86*|x86_64)
+            if test -n "$USE_64"; then
+                CPU_ARCH=x86_64
+            else        
+                CPU_ARCH=i386
+            fi
+            ;;
+        aarch64)
+            CPU_ARCH=aarch64
+            ;;
+        *)
+            CPU_ARCH=ppc
+            ;;
+    esac
+    if test "`echo $CC | grep -c '\-arch '`" = "0"; then
+        case "$CPU_ARCH" in
+        aarch64)
+            CC="$CC -arch arm64"
+            ;;
+        *)
+            CC="$CC -arch $CPU_ARCH"
+            ;;
+        esac
+    fi
+    AC_CHECK_HEADER(crt_externs.h, AC_DEFINE(HAVE_CRT_EXTERNS_H))
+    DSO_CFLAGS=-fPIC
+    DSO_LDOPTS='-dynamiclib -compatibility_version 1 -current_version 1 -all_load -install_name @executable_path/$@ -headerpad_max_install_names'
+    _OPTIMIZE_FLAGS=-O2
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
+    STRIP="$STRIP -x -S"
+    DLL_SUFFIX=dylib
+    USE_PTHREADS=1
+    MDCPUCFG_H=_darwin.cfg
+    PR_MD_CSRCS=darwin.c
+    PR_MD_ASFILES=os_Darwin.s
+
+    if test -n "$_MACOSX_DEPLOYMENT_TARGET" ; then
+        dnl Use the specified value
+        export MACOSX_DEPLOYMENT_TARGET=$_MACOSX_DEPLOYMENT_TARGET
+    elif test -z "$MACOSX_DEPLOYMENT_TARGET" ; then
+        dnl No value specified on the command line or in the environment,
+        dnl use the lesser of the library's minimum or the architecture's
+        dnl minimum.
+        case "${target_cpu}" in
+            powerpc*)
+                dnl Architecture minimum 10.3
+                export MACOSX_DEPLOYMENT_TARGET=10.3
+                ;;
+            i*86*)
+                dnl Architecture minimum 10.4
+                export MACOSX_DEPLOYMENT_TARGET=10.4
+                ;;
+        esac
+    fi
+
+    dnl MACOS_SDK_DIR will be set to the SDK location whenever one is
+    dnl in use.  NEXT_ROOT will be set and exported if it's needed for
+    dnl ld.
+
+    if test "$MACOS_SDK_DIR"; then
+        dnl Sync this section with the one in Mozilla's top level.
+
+        if test ! -d "$MACOS_SDK_DIR"; then
+            AC_MSG_ERROR([SDK not found.  When using --with-macos-sdk, you must
+specify a valid SDK.  SDKs are installed when the optional cross-development
+tools are selected during the Xcode/Developer Tools installation.])
+        fi
+
+        changequote(,)
+        CC_VERSION=`$CC -v 2>&1 | grep 'gcc version'`
+        GCC_VERSION_FULL=`echo $CC_VERSION | $PERL -pe 's/^.*gcc version ([^ ]*).*/$1/'`
+        GCC_VERSION=`echo $GCC_VERSION_FULL | $PERL -pe '(split(/\./))[0]>=4&&s/(^\d*\.\d*).*/$1/;'`
+        changequote([,])
+        GCC_VERSION_MAJOR=`echo $GCC_VERSION_FULL | $PERL -pe 's/(^\d*).*/$1/;'`
+        if test "$GCC_VERSION_MAJOR" -lt "4" ; then
+            SDK_C_FRAMEWORK="-F${MACOS_SDK_DIR}/System/Library/Frameworks"
+            if test -d "${MACOS_SDK_DIR}/Library/Frameworks" ; then
+                SDK_C_FRAMEWORK="$SDK_C_FRAMEWORK -F${MACOS_SDK_DIR}/Library/Frameworks"
+            fi
+
+            SDK_C_INCLUDE="-isystem ${MACOS_SDK_DIR}/usr/include/gcc/darwin/${GCC_VERSION} -isystem ${MACOS_SDK_DIR}/usr/include ${SDK_C_FRAMEWORK}"
+
+            CFLAGS="$CFLAGS -nostdinc ${SDK_C_INCLUDE}"
+
+            dnl CPP needs to be set for AC_CHECK_HEADER.
+            CPP="$CPP -nostdinc ${SDK_C_INCLUDE}"
+
+            changequote(,)
+            HOST_DARWIN_MAJOR=`echo "$build_os" | sed -E -e 's/^darwin([0-9]+).*$/\1/'`
+            changequote([,])
+            if test "$HOST_DARWIN_MAJOR" -lt 9 ; then
+                dnl The build host is running Tiger (10.4) or earlier.
+                dnl ld support for -syslibroot is compiler-agnostic, but
+                dnl only available on Tiger and later.  On Tiger and
+                dnl earlier build hosts, just rely on NEXT_ROOT, because
+                dnl it's not been shown to cause any problems.
+                MACOS_SDK_LIBS="-L${MACOS_SDK_DIR}/usr/lib/gcc/darwin -L${MACOS_SDK_DIR}/usr/lib/gcc/darwin/${GCC_VERSION_FULL} -L${MACOS_SDK_DIR}/usr/lib ${SDK_C_FRAMEWORK}"
+            else
+                dnl The build host is running Leopard (10.5) or later.
+                dnl With NEXT_ROOT set, the linker will still not apply
+                dnl it when resolving dependencies.  This causes problems
+                dnl on Leopard, where an SDK depends on frameworks which
+                dnl were present in earlier OS releases (and the associated
+                dnl SDK) but not in Leopard.  -syslibroot does not have
+                dnl this problem, but it results in harmless warnings when
+                dnl NEXT_ROOT is set.  NEXT_ROOT needs to remain set even
+                dnl on Leopard because the compiler uses it too.
+                MACOS_SDK_LIBS="-Wl,-syslibroot,${MACOS_SDK_DIR}"
+            fi
+
+            LDFLAGS="${MACOS_SDK_LIBS} $LDFLAGS"
+            export NEXT_ROOT=$MACOS_SDK_DIR
+
+            if test -n "$CROSS_COMPILE" ; then
+                dnl NEXT_ROOT will be in the environment, but it
+                dnl shouldn't be set for the build host.  HOST_CXX is
+                dnl presently unused.
+                HOST_CC="NEXT_ROOT= $HOST_CC"
+                HOST_CXX="NEXT_ROOT= $HOST_CXX"
+            fi
+        else
+            dnl gcc >= 4.0 uses different paths than above, but knows
+            dnl how to find them itself.
+            CFLAGS="$CFLAGS -isysroot ${MACOS_SDK_DIR}"
+
+            dnl CPP needs to be set for AC_CHECK_HEADER.
+            CPP="$CPP -isysroot ${MACOS_SDK_DIR}"
+
+            dnl If gcc >= 4.0.0, we're guaranteed to be on Tiger, which
+            dnl has an ld that supports -syslibroot.  Don't set
+            dnl NEXT_ROOT because it will be ignored and cause
+            dnl warnings when -syslibroot is specified.
+            if test "$GCC_VERSION_FULL" != "4.0.0" ; then
+                dnl gcc > 4.0.0 will pass -syslibroot to ld automatically
+                dnl based on the -isysroot it receives.
+                LDFLAGS="$LDFLAGS -isysroot ${MACOS_SDK_DIR}"
+            else
+                dnl gcc 4.0.0 doesn't pass -syslibroot to ld, it needs
+                dnl to be explicit.
+                LDFLAGS="$LDFLAGS -Wl,-syslibroot,${MACOS_SDK_DIR}"
+            fi
+        fi
+    fi
+    ;;
+
+*-freebsd*)
+    if test -z "$USE_NSPR_THREADS"; then
+        USE_PTHREADS=1
+    fi
+    AC_DEFINE(XP_UNIX)
+    AC_DEFINE(FREEBSD)
+    AC_DEFINE(HAVE_BSD_FLOCK)
+    AC_DEFINE(HAVE_SOCKLEN_T)
+    AC_DEFINE(HAVE_POINTER_LOCALTIME_R)
+    CFLAGS="$CFLAGS $(DSO_CFLAGS) -ansi -Wall"
+    MOZ_OBJFORMAT=`test -x /usr/bin/objformat && /usr/bin/objformat || echo elf`
+    if test "$MOZ_OBJFORMAT" = "elf"; then
+        DLL_SUFFIX=so
+    else
+        DLL_SUFFIX=so.1.0
+    fi
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
+    DSO_CFLAGS=-fPIC
+    DSO_LDOPTS='-shared -Wl,-soname -Wl,$(notdir $@)'
+    MDCPUCFG_H=_freebsd.cfg
+    PR_MD_CSRCS=freebsd.c
+    ;;
+
+*-hpux*)
+    AC_DEFINE(XP_UNIX)
+    AC_DEFINE(HPUX)
+    AC_DEFINE(_HPUX_SOURCE)
+    # HPUX report the POLLHUP event for a socket when the
+    # shutdown(SHUT_WR) operation is called for the remote end, even though
+    # the socket is still writeable. Use select(), instead of poll(), to
+    # workaround this problem.
+    AC_DEFINE(_PR_POLL_WITH_SELECT)
+    AC_DEFINE(_USE_BIG_FDS)
+    DSO_LDOPTS='-b +h $(notdir $@)'
+    PR_MD_CSRCS=hpux.c
+    if test "$OS_TEST" = "ia64"; then
+        DLL_SUFFIX=so
+        DSO_LDOPTS="$DSO_LDOPTS +b '\$\$ORIGIN'"
+        CPU_ARCH_TAG=_$OS_TEST 
+        if test -z "$USE_64"; then
+            COMPILER_TAG=_32
+        fi
+        PR_MD_ASFILES=os_HPUX_ia64.s
+    else
+        AC_DEFINE(hppa)
+        DLL_SUFFIX=sl
+        PR_MD_ASFILES=os_HPUX.s
+    fi
+    if test -n "$USE_64"; then
+        MDCPUCFG_H=_hpux64.cfg
+    else
+        MDCPUCFG_H=_hpux32.cfg
+    fi
+    if test -z "$GNU_CC"; then
+        CC="$CC -Ae"
+        CXX="$CXX -ext"
+        DSO_CFLAGS=+Z
+    else
+        DSO_CFLAGS=-fPIC
+        ASFLAGS="$ASFLAGS -x assembler-with-cpp"
+    fi
+
+    if test -n "$MOZILLA_CLIENT"; then
+        DEFAULT_IMPL_STRATEGY=_EMU
+    fi
+
+    if echo "$OS_RELEASE" | grep ^A.09 >/dev/null; then
+        AC_DEFINE(_PR_NEED_H_ERRNO)
+        AC_DEFINE(HPUX9)
+        DEFAULT_IMPL_STRATEGY=_EMU
+    	USE_NSPR_THREADS=1
+    fi
+
+    if echo "$OS_RELEASE" | egrep '^(A.09|B.10)' >/dev/null; then
+        AC_DEFINE(_PR_NO_LARGE_FILES)
+    fi
+
+    if echo "$OS_RELEASE" | egrep '^(B.10.10|B.10.20)' >/dev/null; then
+        AC_DEFINE(_PR_NEED_H_ERRNO)
+    fi
+
+    if echo "$OS_RELEASE" | egrep '^(B.10.10|B.10.20)' >/dev/null; then
+        AC_DEFINE(HAVE_INT_LOCALTIME_R)
+    fi
+
+    if echo "$OS_RELEASE" | egrep '^(B.10.30|B.11)' >/dev/null; then
+        AC_DEFINE(HAVE_POINTER_LOCALTIME_R)
+    fi
+
+    # HP-UX 11i v2 (B.11.23) or higher
+    changequote(<<,>>)
+    case "$OS_RELEASE" in
+    [C-Z]*|B.[2-9]*|B.1[2-9]*|B.11.[3-9]*|B.11.2[3-9]*)
+        USE_IPV6=1
+        ;;
+    esac
+    changequote([,])
+
+    if test "$OS_RELEASE" = "B.10.01"; then
+        AC_DEFINE(HPUX10)
+        DEFAULT_IMPL_STRATEGY=_EMU
+    fi
+
+    if test "$OS_RELEASE" = "B.10.10"; then
+        AC_DEFINE(HPUX10)
+        AC_DEFINE(HPUX10_10)
+        DEFAULT_IMPL_STRATEGY=_PTH
+    fi
+
+    if test "$OS_RELEASE" = "B.10.20"; then
+        AC_DEFINE(HPUX10)
+        AC_DEFINE(HPUX10_20)
+        if test -z "$GNU_CC"; then
+            CFLAGS="$CFLAGS +DAportable +DS1.1"
+            CXXFLAGS="$CXXFLAGS +DAportable +DS1.1"
+        fi
+        DEFAULT_IMPL_STRATEGY=_PTH
+    fi
+
+    if test "$OS_RELEASE" = "B.10.30"; then
+        AC_DEFINE(HPUX10)
+        AC_DEFINE(HPUX10_30)
+        if test -z "$GNU_CC"; then
+            CFLAGS="$CFLAGS +DAportable +DS1.1"
+            CXXFLAGS="$CXXFLAGS +DAportable +DS1.1"
+        fi
+        DEFAULT_IMPL_STRATEGY=_PTH
+    fi
+
+    if echo "$OS_RELEASE" | grep ^B.11 >/dev/null; then
+        AC_DEFINE(HPUX10)
+        AC_DEFINE(HPUX11)
+        AC_DEFINE(_LARGEFILE64_SOURCE)
+        AC_DEFINE(_PR_HAVE_OFF64_T)
+        AC_DEFINE(HAVE_FCNTL_FILE_LOCKING)
+        if test -z "$GNU_CC"; then
+            if test -z "$USE_64"; then
+                if test "$OS_TEST" = "ia64"; then
+                    CFLAGS="$CFLAGS +DD32"
+                    CXXFLAGS="$CXXFLAGS +DD32"
+                else
+                    CFLAGS="$CFLAGS +DAportable +DS2.0"
+                    CXXFLAGS="$CXXFLAGS +DAportable +DS2.0"
+                fi
+            else
+                if test "$OS_TEST" = "ia64"; then
+                    CFLAGS="$CFLAGS +DD64"
+                    CXXFLAGS="$CXXFLAGS +DD64"
+                else
+                    CFLAGS="$CFLAGS +DA2.0W +DS2.0"
+                    CXXFLAGS="$CXXFLAGS +DA2.0W +DS2.0"
+                fi
+            fi
+        fi
+        DEFAULT_IMPL_STRATEGY=_PTH
+    fi
+
+    if test "$DEFAULT_IMPL_STRATEGY" = "_EMU"; then
+        USE_NSPR_THREADS=1
+        USE_PTHREADS=
+        USE_USER_PTHREADS=
+    elif test "$DEFAULT_IMPL_STRATEGY" = "_PTH"; then
+        USE_PTHREADS=1
+        if test "$USE_NSPR_THREADS"; then
+            USE_PTHREADS=
+        fi
+        if test "$USE_USER_PTHREADS"; then
+            USE_PTHREADS=
+        fi
+    fi
+    ;;
+
+*-linux*|*-gnu*|*-k*bsd*-gnu|*-android*|*-linuxandroid*)
+    if test -z "$USE_NSPR_THREADS"; then
+        USE_PTHREADS=1
+        IMPL_STRATEGY=_PTH
+    fi
+    AC_DEFINE(XP_UNIX)
+    AC_DEFINE(_GNU_SOURCE)
+    AC_DEFINE(HAVE_FCNTL_FILE_LOCKING)
+    AC_DEFINE(HAVE_POINTER_LOCALTIME_R)
+    case "${target}" in
+    *-android*|*-linuxandroid*)
+        OS_TARGET=Android
+        AC_DEFINE(LINUX)
+        ;;
+    *-linux*)
+        AC_DEFINE(LINUX)
+        ;;
+    esac
+    CFLAGS="$CFLAGS -Wall"
+    CXXFLAGS="$CXXFLAGS -Wall"
+    MDCPUCFG_H=_linux.cfg
+    PR_MD_CSRCS=linux.c
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
+    DSO_CFLAGS=-fPIC
+    DSO_LDOPTS='-shared -Wl,-soname -Wl,$(notdir $@)'
+    _OPTIMIZE_FLAGS=-O2
+    _DEBUG_FLAGS="-g -fno-inline"  # most people on linux use gcc/gdb, and that
+                                   # combo is not yet good at debugging inlined
+                                   # functions (even when using DWARF2 as the
+                                   # debugging format)
+    COMPILER_TAG=_glibc
+    if echo "$OS_TEST" | grep -c 86 >/dev/null; then
+        CPU_ARCH=x86
+    else
+        CPU_ARCH=$OS_TEST
+    fi
+    CPU_ARCH_TAG=_${CPU_ARCH}
+    case "${target_cpu}" in
+    alpha)
+        AC_DEFINE(_ALPHA_)
+        AC_DEFINE(__alpha)
+        CFLAGS="$CFLAGS -mieee"
+        CXXFLAGS="$CXXFLAGS -mieee"
+        ;;
+    i*86)
+        AC_DEFINE(i386)
+        PR_MD_ASFILES=os_Linux_x86.s
+        ;;
+    ia64)
+        PR_MD_ASFILES=os_Linux_ia64.s
+        ;;
+    x86_64)
+        if test -n "$USE_64"; then
+            PR_MD_ASFILES=os_Linux_x86_64.s
+        elif test -n "$USE_X32"; then
+            PR_MD_ASFILES=os_Linux_x86_64.s
+            CC="$CC -mx32"
+            CXX="$CXX -mx32"
+        else
+            AC_DEFINE(i386)
+            PR_MD_ASFILES=os_Linux_x86.s
+            CC="$CC -m32"
+            CXX="$CXX -m32"
+        fi
+        ;;
+    ppc|powerpc)
+        PR_MD_ASFILES=os_Linux_ppc.s
+        ;;
+    powerpc64)
+        if test -n "$USE_64"; then
+            CC="$CC -m64"
+            CXX="$CXX -m64"
+        else
+            PR_MD_ASFILES=os_Linux_ppc.s
+        fi
+        ;;
+    esac    
+    ;;
+
+*-mingw*|*-msys*|*-cygwin*|*-mks*)
+    AC_DEFINE(XP_PC)
+    AC_DEFINE(WIN32)
+    PR_MD_ARCH_DIR=windows
+    RESOLVE_LINK_SYMBOLS=1
+
+    if test -n "$GNU_CC"; then
+        CC="$CC -mwindows"
+        CXX="$CXX -mwindows"
+        DLL_SUFFIX=dll
+        MKSHLIB='$(CC) -shared -Wl,--export-all-symbols -Wl,--out-implib -Wl,$(IMPORT_LIBRARY) $(DLLBASE) -o $(subst $(OBJDIR)/,,$(SHARED_LIBRARY))'
+        RC=$WINDRES
+        # Use temp file for windres (bug 213281)
+        RCFLAGS='-O coff --use-temp-file'
+    else
+        LD=link
+        AR='lib -NOLOGO -OUT:"$@"'
+        AR_FLAGS=
+        RANLIB='echo not_ranlib'
+        STRIP='echo not_strip'
+        RC=rc.exe
+        GARBAGE='$(OBJDIR)/vc20.pdb $(OBJDIR)/vc40.pdb'
+        OBJ_SUFFIX=obj
+        LIB_SUFFIX=lib
+        DLL_SUFFIX=dll
+
+        # Determine compiler version
+        changequote(,)
+        _MSVC_VER_FILTER='s|.* \([0-9]\+\.[0-9]\+\.[0-9]\+\(\.[0-9]\+\)\?\).*|\1|p'
+        changequote([,])
+        CC_VERSION=`${CC} -v 2>&1 | sed -ne "$_MSVC_VER_FILTER"`
+        if test -z "$CC_VERSION"; then
+            AC_MSG_ERROR([Could not determine MSC version.])
+        fi
+
+        _CC_MAJOR_VERSION=`echo ${CC_VERSION} | awk -F\. '{ print $1 }'`
+        _CC_MINOR_VERSION=`echo ${CC_VERSION} | awk -F\. '{ print $2 }'`
+        _CC_RELEASE=`echo ${CC_VERSION} | awk -F\. '{ print $3 }'`
+        _CC_BUILD=`echo ${CC_VERSION} | awk -F\. '{ print $4 }'`
+        MSC_VER=${_CC_MAJOR_VERSION}${_CC_MINOR_VERSION}
+
+        if test "$_CC_MAJOR_VERSION" -eq "14"; then
+           dnl -DYNAMICBASE is only supported on VC8SP1 or newer,
+           dnl so be very specific here!
+           dnl VC8 is 14.00.50727.42, VC8SP1 is 14.00.50727.762
+           if test $_CC_RELEASE -gt 50727; then
+              _USE_DYNAMICBASE=1
+           elif test $_CC_BUILD -ge 762; then
+              _USE_DYNAMICBASE=1
+           fi
+           AC_DEFINE(_CRT_SECURE_NO_DEPRECATE)
+           AC_DEFINE(_CRT_NONSTDC_NO_DEPRECATE)
+        elif test $_CC_MAJOR_VERSION -ge 15; then
+           _USE_DYNAMICBASE=1    
+           AC_DEFINE(_CRT_SECURE_NO_WARNINGS)
+           AC_DEFINE(_CRT_NONSTDC_NO_WARNINGS)
+        fi
+
+        if test -n "$_USE_DYNAMICBASE"; then
+           DLLFLAGS="$DLLFLAGS -DYNAMICBASE"
+        fi
+
+        # Ensure that mt is Microsoft (R) Manifest Tool and not magnetic
+        # tape manipulation utility (or something else)
+        if test "$MSC_VER" -ge "1400"; then
+            changequote(,)
+            _MSMT_VER_FILTER='s|.* \([0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\.[0-9][0-9]*\).*|\1|p'
+            changequote([,])
+
+            MSMT_TOOL=`mt 2>&1|grep 'Microsoft (R) Manifest Tool'`
+            if test -n "$MSMT_TOOL"; then
+                MSMANIFEST_TOOL_VERSION=`echo ${MSMT_TOOL}|sed -ne "$_MSMT_VER_FILTER"`
+                if test -z "$MSMANIFEST_TOOL_VERSION"; then
+                    AC_MSG_WARN([Unknown version of the Microsoft (R) Manifest Tool.])
+                fi
+                MT=mt
+                unset MSMT_TOOL
+            else
+                AC_MSG_ERROR([Microsoft (R) Manifest Tool must be in your \$PATH.])
+            fi
+        fi
+        
+        CFLAGS="$CFLAGS -W3 -nologo -GF -Gy"
+        DLLFLAGS="$DLLFLAGS -OUT:\"\$@\""
+        _DEBUG_FLAGS=-Zi
+        _OPTIMIZE_FLAGS=-O2
+
+        PROFILE_GEN_CFLAGS="-GL"
+        PROFILE_GEN_LDFLAGS="-LTCG:PGINSTRUMENT"
+        PROFILE_USE_CFLAGS="-GL -wd4624 -wd4952"
+        PROFILE_USE_LDFLAGS="-LTCG:PGUPDATE"
+
+        if test "$MSC_VER" -ge "1800"; then
+            dnl Visual C++ 2013 requires -FS when parallel building with
+            dnl make -jN. If not specified, compiler sometimes emits C1041
+            dnl error.
+            CFLAGS="$CFLAGS -FS"
+            dnl -Gw can benefit when using linker optimization on PGO.
+            dnl http://blogs.msdn.com/b/vcblog/archive/2013/09/11/introducing-gw-compiler-switch.aspx
+            PROFILE_GEN_CFLAGS="$PROFILE_GEN_CFLAGS -Gw"
+            PROFILE_USE_CFLAGS="$PROFILE_USE_CFLAGS -Gw"
+        fi
+
+        if test -z "$MOZ_OPTIMIZE"; then
+            CFLAGS="$CFLAGS -Od"
+        fi
+
+        if test "$USE_DEBUG_RTL" = 1; then
+            if test -n "$USE_STATIC_RTL"; then
+                CFLAGS="$CFLAGS -MTd"
+            else
+                CFLAGS="$CFLAGS -MDd"
+            fi
+        else
+            if test -n "$USE_STATIC_RTL"; then
+                CFLAGS="$CFLAGS -MT"
+            else
+                CFLAGS="$CFLAGS -MD"
+            fi
+        fi
+
+        if test -n "$MOZ_DEBUG"; then
+            AC_DEFINE(_DEBUG)
+        else
+            DEFINES="$DEFINES -U_DEBUG"
+        fi
+
+        if test -n "$MOZ_DEBUG_SYMBOLS"; then
+            if test -n "$MOZ_OPTIMIZE"; then
+                DLLFLAGS="$DLLFLAGS -DEBUG -OPT:REF"
+                LDFLAGS="$LDFLAGS -DEBUG -OPT:REF"
+            else
+                DLLFLAGS="$DLLFLAGS -DEBUG"
+                LDFLAGS="$LDFLAGS -DEBUG"
+            fi
+        fi
+
+        OS_DLLFLAGS="-nologo -DLL -SUBSYSTEM:WINDOWS"
+        if test "$MSC_VER" -le "1200" -a -z "$MOZ_DEBUG_SYMBOLS"; then
+            OS_DLLFLAGS="$OS_DLLFLAGS -PDB:NONE"
+        fi
+        
+        if test "$OS_TARGET" = "WINNT"; then
+            CFLAGS="$CFLAGS -GT"
+            LIBNSPR='$(dist_libdir)/libnspr$(MOD_MAJOR_VERSION).$(LIB_SUFFIX)'
+            LIBPLC='$(dist_libdir)/libplc$(MOD_MAJOR_VERSION).$(LIB_SUFFIX)'
+        else
+            LIBNSPR='$(dist_libdir)/nspr$(MOD_MAJOR_VERSION).$(LIB_SUFFIX)'
+            LIBPLC='$(dist_libdir)/plc$(MOD_MAJOR_VERSION).$(LIB_SUFFIX)'
+        fi
+    fi # GNU_CC
+
+    if test -n "$USE_STATIC_TLS"; then
+        AC_DEFINE(_PR_USE_STATIC_TLS)
+    fi
+
+    if test "$OS_TARGET" = "WINNT"; then
+        AC_DEFINE(WINNT)
+    else
+        AC_DEFINE(WIN95)
+        # undefine WINNT as some versions of mingw gcc define it by default
+        DEFINES="$DEFINES -UWINNT"
+        AC_DEFINE(_PR_GLOBAL_THREADS_ONLY)
+    fi
+
+    if test "$CPU_ARCH" = "x86"; then
+        CPU_ARCH_TAG=
+    else
+        CPU_ARCH_TAG=$CPU_ARCH
+    fi
+
+    if test "$USE_DEBUG_RTL" = 1; then
+        OBJDIR_SUFFIX=OBJD
+    fi
+
+    case "$OS_TARGET" in
+    WINNT)
+	    MDCPUCFG_H=_winnt.cfg
+	    ;;
+    WIN95)
+	    MDCPUCFG_H=_win95.cfg
+	    ;;
+    *)
+	    AC_MSG_ERROR([Missing OS_TARGET for ${target}.  Use --enable-win32-target to set.])
+   	;;
+    esac
+
+    case "$target_cpu" in
+    i*86)
+	if test -n "$USE_64"; then
+	    AC_DEFINE(_AMD64_)
+	else		
+	    AC_DEFINE(_X86_)
+            if test -z "$GNU_CC" -a "$MSC_VER" -ge "1700"; then
+                dnl Visual C++ 2012 defaults to -arch:SSE2. Use -arch:IA32
+                dnl to avoid requiring SSE2.
+                CFLAGS="$CFLAGS -arch:IA32"
+            fi
+	fi
+        ;;
+    x86_64)
+	    AC_DEFINE(_AMD64_)
+	    USE_64=1
+	    ;;
+    aarch64)
+	    AC_DEFINE(_ARM64_)
+	    USE_64=1
+	    ;;
+    ia64)
+	    AC_DEFINE(_IA64_)
+	    USE_64=1
+	    ;;
+    *)
+	    AC_DEFINE(_CPU_ARCH_NOT_DEFINED)
+	    ;;
+    esac
+    ;;
+
+*-netbsd*)
+    AC_DEFINE(XP_UNIX)
+    AC_DEFINE(NETBSD)
+    AC_DEFINE(HAVE_BSD_FLOCK)
+    AC_DEFINE(HAVE_SOCKLEN_T)
+    AC_DEFINE(HAVE_POINTER_LOCALTIME_R)
+    if test -z "$USE_NSPR_THREADS"; then
+        USE_PTHREADS=1
+    fi
+    MDCPUCFG_H=_netbsd.cfg
+    PR_MD_CSRCS=netbsd.c
+
+    DSO_CFLAGS='-fPIC -DPIC'
+    CFLAGS="$CFLAGS -ansi -Wall"
+    CXXFLAGS="$CXXFLAGS -ansi -Wall"
+    MKSHLIB='$(CC) -o $@ $(DSO_LDOPTS)'
+
+    if test -z "$OBJECT_FMT"; then
+        if echo __ELF__ | ${CC-cc} -E - | grep -q __ELF__ 2>/dev/null; then
+            OBJECT_FMT=a.out
+            DLL_SUFFIX=so.1.0
+            DSO_LDOPTS='-shared'
+        else
+            OBJECT_FMT=ELF
+            DLL_SUFFIX=so
+            DSO_LDOPTS='-shared -Wl,-soname,$(notdir $@)'
+        fi
+    fi
+
+    if test "$LIBRUNPATH"; then
+        DSO_LDOPTS="$DSO_LDOPTS -Wl,-R$LIBRUNPATH"
+    fi
+    ;;
+
+*-nto*)
+    AC_DEFINE(XP_UNIX)
+    AC_DEFINE(NTO)
+    AC_DEFINE(_QNX_SOURCE)
+    AC_DEFINE(HAVE_POINTER_LOCALTIME_R)
+    MDCPUCFG_H=_nto.cfg
+    PR_MD_CSRCS=nto.c
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -Wl,-soname -Wl,$(notdir $@) -o $@'
+    DSO_CFLAGS=-fPIC
+    DSO_LDOPTS=-shared
+    OS_LIBS="$OS_LIBS -lsocket"
+    _OPTIMIZE_FLAGS="-O1"
+    _DEBUG_FLAGS="-gstabs"
+	;;
+
+*-openbsd*)
+    AC_DEFINE(XP_UNIX)
+    AC_DEFINE(OPENBSD)
+    AC_DEFINE(HAVE_BSD_FLOCK)
+    AC_DEFINE(HAVE_SOCKLEN_T)
+    AC_DEFINE(HAVE_POINTER_LOCALTIME_R)
+    CFLAGS="$CFLAGS -ansi -Wall"
+    CXXFLAGS="$CXXFLAGS -ansi -Wall"
+    DLL_SUFFIX=so.1.0
+    DSO_CFLAGS=-fPIC
+    MDCPUCFG_H=_openbsd.cfg
+    PR_MD_CSRCS=openbsd.c
+    OS_LIBS="-lc"
+    if test -z "$USE_NSPR_THREADS"; then
+        USE_PTHREADS=1
+    fi
+    DSO_LDOPTS='-shared -fPIC -Wl,-soname,$(notdir $@)'
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
+    ;;
+
+*-qnx*)
+    AC_DEFINE(XP_UNIX)
+    AC_DEFINE(QNX)
+    AC_DEFINE(_PR_NEED_H_ERRNO)
+    USE_NSPR_THREADS=1
+    MDCPUCFG_H=_qnx.cfg
+    PR_MD_CSRCS=qnx.c
+    ;;
+
+*-riscos*)
+    AC_DEFINE(XP_UNIX)
+    AC_DEFINE(RISCOS)
+    AC_DEFINE(_PR_NEED_H_ERRNO)
+    USE_PTHREADS=1
+    MDCPUCFG_H=_riscos.cfg
+    PR_MD_CSRCS=riscos.c
+    DSO_CFLAGS=-fPIC
+    DSO_LDOPTS='-shared -Wl,-soname -Wl,$(notdir $@)'
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
+    ;;
+
+*-*-sco*)
+    AC_DEFINE(XP_UNIX)
+    AC_DEFINE(SCO)
+    AC_DEFINE(sco)
+    AC_DEFINE(SYSV)
+    AC_DEFINE(_SVID3)
+    AC_DEFINE(_PR_NEED_H_ERRNO)
+    CC='cc -b elf -KPIC'
+    CXX='$(NSDEPTH)/build/hcpp CC +.cpp +w'
+    USE_NSPR_THREADS=1
+    CPU_ARCH=x86
+    DSO_LDOPTS='-b elf -G'
+    MDCPUCFG_H=_scoos.cfg
+    PR_MD_SRCS=scoos.c
+    ;;
+
+*-solaris*)
+    if test -z "$USE_NSPR_THREADS"; then
+        USE_PTHREADS=1
+    fi
+    AC_DEFINE(XP_UNIX)
+    AC_DEFINE(SVR4)
+    AC_DEFINE(SYSV)
+    AC_DEFINE(__svr4)
+    AC_DEFINE(__svr4__)
+    AC_DEFINE(SOLARIS)
+    AC_DEFINE(HAVE_FCNTL_FILE_LOCKING)
+    CPU_ARCH=`uname -p`
+    MDCPUCFG_H=_solaris.cfg
+    PR_MD_CSRCS=solaris.c
+    LD=/usr/ccs/bin/ld
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
+    RESOLVE_LINK_SYMBOLS=1
+    case "${OS_RELEASE}" in
+    5.8|5.9)
+        ;;
+    *)
+        # It is safe to use the -Bdirect linker flag on Solaris 10 or later.
+        USE_B_DIRECT=1
+        ;;
+    esac
+    if test -n "$GNU_CC"; then
+        DSO_CFLAGS=-fPIC
+        if `$CC -print-prog-name=ld` -v 2>&1 | grep -c GNU >/dev/null; then
+            GCC_USE_GNU_LD=1
+        fi
+        DSO_LDOPTS='-shared -Wl,-h,$(notdir $@),-z,combreloc,-z,defs,-z,ignore' 
+        if test -n "$USE_B_DIRECT"; then
+            DSO_LDOPTS="$DSO_LDOPTS,-Bdirect"
+        fi
+    else
+        DSO_CFLAGS=-KPIC
+        DSO_LDOPTS='-G -h $(notdir $@) -z combreloc -z defs -z ignore'
+        if test -n "$USE_B_DIRECT"; then
+            DSO_LDOPTS="$DSO_LDOPTS -Bdirect"
+        fi
+    fi
+    if test -n "$GNU_CC"; then
+        CFLAGS="$CFLAGS -Wall"
+        CXXFLAGS="$CXXFLAGS -Wall"
+        if test -n "$USE_MDUPDATE"; then
+            CFLAGS="$CFLAGS -MDupdate \$(DEPENDENCIES)"
+            CXXFLAGS="$CXXFLAGS -MDupdate \$(DEPENDENCIES)"
+        fi
+        GCC_AS=`$CC -print-prog-name=as`
+        if test "`echo | $GCC_AS -v 2>&1 | grep -c GNU`" != "0"; then
+            GNU_AS=1
+        fi
+    else
+        CFLAGS="$CFLAGS -xstrconst"
+        CXXFLAGS="$CXXFLAGS -Qoption cg -xstrconst -features=tmplife"
+        if test -z "$MOZ_OPTIMIZE"; then
+            CFLAGS="$CFLAGS -xs"
+            CXXFLAGS="$CXXFLAGS -xs"
+        fi
+        _OPTIMIZE_FLAGS=-xO4
+    fi
+    if test -z "$GNU_AS"; then
+        ASFLAGS="$ASFLAGS -Wa,-P"
+    fi
+    if test -n "$USE_64"; then
+        if test -n "$GNU_CC"; then
+            CC="$CC -m64"
+            CXX="$CXX -m64"
+        else
+            if test "$OS_TEST" = "i86pc"; then
+                CC="$CC -xarch=amd64"
+                CXX="$CXX -xarch=amd64"
+            else
+                CC="$CC -xarch=v9"
+                CXX="$CXX -xarch=v9"
+            fi
+        fi
+    fi
+    if test "$OS_TEST" = "i86pc"; then
+        if test -z "$USE_64"; then
+            AC_DEFINE(i386)
+        fi
+        CPU_ARCH_TAG=_$OS_TEST
+        # The default debug format, DWARF (-g), is not supported by gcc
+        # on i386-ANY-sysv4/solaris, but the stabs format is.  It is
+        # assumed that the Solaris assembler /usr/ccs/bin/as is used.
+        # If your gcc uses GNU as, you do not need the -Wa,-s option.
+        if test -n "$MOZ_DEBUG" && test -n "$GNU_CC"; then
+            _DEBUG_FLAGS=-gstabs
+            if test -z "$GNU_AS"; then
+                _DEBUG_FLAGS="$_DEBUG_FLAGS -Wa,-s"
+            fi
+        fi
+    fi
+    case "${target_os}" in
+    solaris2.3*)
+        AC_DEFINE(_PR_NO_LARGE_FILES)
+        ;;
+    solaris2.4*)
+        AC_DEFINE(_PR_NO_LARGE_FILES)
+        ;;
+    solaris2.5*)
+        AC_DEFINE(SOLARIS2_5)    
+        ;;
+    *)
+        AC_DEFINE(_PR_HAVE_OFF64_T)
+        # The lfcompile64(5) man page on Solaris 2.6 says:
+        #     For applications that do not wish to conform to the POSIX or
+        #     X/Open  specifications,  the  64-bit transitional interfaces
+        #     are available by default.  No compile-time flags need to  be
+        #     set.
+        # But gcc 2.7.2.x fails to define _LARGEFILE64_SOURCE by default.
+        # The native compiler, gcc 2.8.x, and egcs don't have this problem.
+        if test -n "$GNU_CC"; then
+            AC_DEFINE(_LARGEFILE64_SOURCE)
+        fi
+        ;;
+    esac
+    case "${target_os}" in
+    solaris2.3*)
+        ;;
+    solaris2.4*)
+        ;;
+    solaris2.5*)
+        ;;
+    solaris2.6*)
+        ;;
+    solaris2.7*)
+        ;;
+    *)
+        # Solaris 8 or higher has IPv6.
+        AC_DEFINE(_PR_INET6)
+        ;;
+    esac
+    if test "$CPU_ARCH" = "sparc"; then
+        # 64-bit Solaris SPARC requires V9 architecture, so the following
+        # is not needed.
+        if test -z "$USE_64"; then
+            ULTRASPARC_LIBRARY=nspr_flt
+        fi
+    fi
+    # Purify requires that binaries linked against nspr also
+    # be linked against -lrt (or -lposix4) so add it to OS_LIBS
+    _rev=`uname -r`
+    _librt=`echo $_rev 5.6 | awk '{ if ($1 > $2) print "-lrt"; else print "-lposix4" }'`
+    OS_LIBS="$OS_LIBS $_librt"
+    ;;
+
+*-sco-sysv5*)
+    AC_DEFINE(XP_UNIX)
+    AC_DEFINE(UNIXWARE)
+    AC_DEFINE(SVR4)
+    AC_DEFINE(SYSV)
+    USE_NSPR_THREADS=1
+    if echo $OS_RELEASE | grep -c 2.1 2>/dev/null; then
+        AC_DEFINE(_PR_NO_LARGE_FILES)
+        CC='$(NSDEPTH)/build/hcc cc'
+        CXX='$(NSDEPTH)/build/hcpp CC'
+        MDCPUCFG_H=_unixware.cfg
+    else
+        AC_DEFINE(_LARGEFILE64_SOURCE)
+        AC_DEFINE(_PR_HAVE_OFF64_T)
+        AC_DEFINE(_PR_HAVE_SOCKADDR_LEN)
+        MDCPUCFG_H=_unixware7.cfg
+    fi
+    PR_MD_CSRCS=unixware.c
+    DSO_LDOPTS=-G
+    CPU_ARCH=x86
+    ;;
+
+*-os2*)
+    AC_DEFINE(XP_OS2)
+    AC_DEFINE(XP_PC)
+    AC_DEFINE(BSD_SELECT)
+    AC_DEFINE(TCPV40HDRS)
+    LIB_SUFFIX=lib
+    DLL_SUFFIX=dll
+    RC=rc.exe
+    PR_MD_ARCH_DIR=os2
+    PROG_SUFFIX=.exe
+    NSINSTALL=nsinstall
+    MDCPUCFG_H=_os2.cfg
+    RESOLVE_LINK_SYMBOLS=1
+
+    AC_DEFINE(OS2)
+    AR=emxomfar
+    AR_FLAGS='r $@'
+    CFLAGS="$CFLAGS -Wall -Zomf"
+    CXXFLAGS="$CFLAGS -Wall -Zomf"
+    MKSHLIB='$(CC) $(DSO_LDOPTS) -o $@'
+    DSO_CFLAGS=
+    DSO_LDOPTS='-Zomf -Zdll'
+    LDFLAGS='-Zmap'
+    _OPTIMIZE_FLAGS="-O2 -s"
+    _DEBUG_FLAGS="-g -fno-inline"
+    if test -n "$MOZ_OPTIMIZE"; then
+      DSO_LDOPTS="$DSO_LDOPTS -Zlinker /EXEPACK:2 -Zlinker /PACKCODE -Zlinker /PACKDATA"
+    fi
+    IMPLIB='emximp -o'
+    FILTER='emxexp -o'
+    if test -n "$MOZ_OS2_HIGH_MEMORY"; then
+      LDFLAGS="$LDFLAGS -Zhigh-mem"
+      AC_DEFINE(MOZ_OS2_HIGH_MEMORY)
+    fi
+
+    # GCC for OS/2 currently predefines these, but we don't want them
+    DEFINES="$DEFINES -Uunix -U__unix -U__unix__"
+    ;;
+
+*)
+    AC_DEFINE(XP_UNIX)
+    ;;
+   
+esac
+
+if test -z "$SKIP_LIBRARY_CHECKS"; then
+dnl ========================================================
+dnl Check for system libraries
+dnl ========================================================
+
+
+dnl We don't want anything to link with libdl even if it's present on OS X, 
+dnl since it's not used and not part of the default installation.
+dnl The same goes for BeOS.
+dnl OS/2 has dlfcn in libc.
+
+case $target in
+*-darwin*|*-os2*)
+    ;;
+*)
+    AC_CHECK_LIB(dl, dlopen,
+        [AC_CHECK_HEADER(dlfcn.h,
+            OS_LIBS="-ldl $OS_LIBS")])
+    ;;
+esac
+
+
+dnl ========================================================
+dnl Check for system header files.
+dnl ========================================================
+
+dnl ========================================================
+dnl Check for typedefs and structs
+dnl ========================================================
+
+dnl ========================================================
+dnl Checks for library functions.
+dnl ========================================================
+AC_PROG_GCC_TRADITIONAL
+_SAVE_LIBS="$LIBS"
+LIBS="$LIBS $OS_LIBS"
+AC_CHECK_FUNCS(dladdr gettid lchown setpriority strerror syscall dnl
+ secure_getenv __secure_getenv)
+LIBS="$_SAVE_LIBS"
+
+dnl ========================================================
+dnl Check options
+dnl ========================================================
+
+dnl ======================================================
+dnl = Enable compiling with ccache
+dnl ======================================================
+AC_ARG_WITH(ccache,
+[  --with-ccache[=path/to/ccache]
+                          Enable compiling with ccache],
+    CCACHE=$withval, CCACHE="no")
+
+if test "$CCACHE" != "no"; then
+    if test -n "$CCACHE"; then
+        if test "$CCACHE" = "yes"; then
+            CCACHE=
+        else
+            if test ! -e "$CCACHE"; then
+                AC_MSG_ERROR([$CCACHE not found])
+            fi
+        fi
+    fi
+    AC_PATH_PROGS(CCACHE, $CCACHE ccache)
+    if test -z "$CCACHE" -o "$CCACHE" = ":"; then
+        AC_MSG_ERROR([ccache not found])
+    elif test -x "$CCACHE"; then
+        CC="$CCACHE $CC"
+        CXX="$CCACHE $CXX"
+    else
+        AC_MSG_ERROR([$CCACHE is not executable])
+    fi
+fi
+
+dnl ========================================================
+dnl =
+dnl = --enable-strip
+dnl = 
+dnl = Enable stripping of libs and executables
+dnl = 
+dnl ========================================================
+AC_ARG_ENABLE(strip,
+    [  --enable-strip          Enable stripping of shared libs and programs],
+    [ if test "$enableval" = "yes"; then
+	    ENABLE_STRIP=1
+      fi ])
+
+dnl Check for hpux options
+case "${target_os}" in
+hpux*)
+if test -z "$GNU_CC"; then
+
+    AC_CACHE_CHECK(for +Olit support,
+        ac_cv_hpux_usable_olit_option,
+        dnl since aCC doesn't throw an error on invalid options,
+        dnl we have to test this the hard way
+        [ac_cv_hpux_usable_olit_option=no
+        rm -f conftest*
+        echo 'int main() { return 0; }' | cat > conftest.c
+        ${CC-cc} ${CFLAGS} +Olit=all -o conftest conftest.c > conftest.out 2>&1
+        if test $? -eq 0; then
+            if test -z "`egrep -i '(unrecognize|unknown)' conftest.out`"; then
+                ac_cv_hpux_usable_olit_option=yes
+            fi
+        fi
+        rm -f conftest*
+        ])
+
+    if test "$ac_cv_hpux_usable_olit_option" = "yes"; then
+        CFLAGS="$CFLAGS +Olit=all"
+        CXXFLAGS="$CXXFLAGS +Olit=all"
+    else
+        CFLAGS="$CFLAGS +ESlit"
+        CXXFLAGS="$CXXFLAGS +ESlit"
+    fi
+fi
+;;
+esac
+
+case "$target_os" in
+darwin*)
+    _HAVE_PTHREADS=1
+    ;;
+*)
+    AC_CHECK_LIB(pthreads, pthread_create,
+        _HAVE_PTHREADS=1 _PTHREAD_LDFLAGS="-lpthreads",
+        AC_CHECK_LIB(pthread, pthread_create,
+            _HAVE_PTHREADS=1 _PTHREAD_LDFLAGS="-lpthread",
+            AC_CHECK_LIB(c_r, pthread_create,
+                _HAVE_PTHREADS=1 _PTHREAD_LDFLAGS="-lc_r",
+                AC_CHECK_LIB(c, pthread_create,
+                    _HAVE_PTHREADS=1
+                )
+            )
+        )
+    )
+    ;;
+esac
+
+AC_ARG_WITH(pthreads,
+    [  --with-pthreads         Use system pthreads library as thread subsystem],
+    [ if test "$withval" = "yes"; then
+	    if test -n "$_HAVE_PTHREADS"; then
+		    USE_PTHREADS=1 
+		    USE_USER_PTHREADS=
+		    USE_NSPR_THREADS=
+	    else
+		    AC_MSG_ERROR([ --with-pthreads specified for a system without pthread support ]);
+	    fi
+	  else
+	    USE_PTHREADS=
+	    _PTHREAD_LDFLAGS=
+	  fi],
+	[ if test -n "$_HAVE_PTHREADS" && test -z "$USE_USER_PTHREADS" && test -z "$USE_NSPR_THREADS"; then
+	    USE_PTHREADS=1
+	    USE_USER_PTHREADS=
+	    USE_NSPR_THREADS=
+	  fi])
+
+AC_ARG_ENABLE(user-pthreads,
+    [  --enable-user-pthreads  Build using userland pthreads],
+    [ if test "$enableval" = "yes"; then
+        if test -n "$_HAVE_PTHREADS"; then
+		    USE_PTHREADS=
+		    USE_USER_PTHREADS=1
+		    USE_NSPR_THREADS=
+	    else
+		    AC_MSG_ERROR([ --enable-user-pthreads specified for a system without pthread support ]);
+	    fi
+	  fi])
+
+AC_ARG_ENABLE(nspr-threads,
+    [  --enable-nspr-threads   Build using classic nspr threads],
+    [ if test "$enableval" = "yes"; then
+	    USE_PTHREADS=
+	    USE_USER_PTHREADS=
+	    USE_NSPR_THREADS=1
+	  fi])
+
+fi # SKIP_LIBRARY_CHECKS
+
+AC_ARG_ENABLE(ipv6,
+    [  --enable-ipv6           Compile ipv6 support],
+    [ if test "$enableval" = "yes"; then
+	    USE_IPV6=1
+      else
+	    USE_IPV6=
+      fi])
+
+if test -n "$USE_PTHREADS"; then
+   dnl See if -pthread is supported.
+   rm -f conftest*
+   ac_cv_have_dash_pthread=no
+   AC_MSG_CHECKING(whether ${CC-cc} accepts -pthread)
+   echo 'int main() { return 0; }' | cat > conftest.c
+   ${CC-cc} -pthread -o conftest conftest.c > conftest.out 2>&1
+   if test $? -eq 0; then
+	if test -z "`egrep -i '(unrecognize|unknown)' conftest.out | grep pthread`" && test -z "`egrep -i '(error|incorrect)' conftest.out`" ; then
+	    ac_cv_have_dash_pthread=yes
+		case "$target_os" in
+	    freebsd*)
+# Freebsd doesn't use -pthread for compiles, it uses them for linking
+            ;;
+	    *)
+            CFLAGS="$CFLAGS -pthread"
+            CXXFLAGS="$CXXFLAGS -pthread"
+            ;;
+        esac
+	fi
+    fi
+    rm -f conftest*
+    AC_MSG_RESULT($ac_cv_have_dash_pthread)
+
+	dnl
+	dnl See if -pthreads is supported.
+	dnl
+    ac_cv_have_dash_pthreads=no
+    if test "$ac_cv_have_dash_pthread" = "no"; then
+	    AC_MSG_CHECKING(whether ${CC-cc} accepts -pthreads)
+    	echo 'int main() { return 0; }' | cat > conftest.c
+	    ${CC-cc} -pthreads -o conftest conftest.c > conftest.out 2>&1
+    	if test $? -eq 0; then
+	    	if test -z "`egrep -i '(unrecognize|unknown)' conftest.out | grep pthreads`" && test -z "`egrep -i '(error|incorrect)' conftest.out`" ; then
+			    ac_cv_have_dash_pthreads=yes
+			    CFLAGS="$CFLAGS -pthreads"
+			    CXXFLAGS="$CXXFLAGS -pthreads"
+		    fi
+	    fi
+	    rm -f conftest*
+    	AC_MSG_RESULT($ac_cv_have_dash_pthreads)
+    fi
+
+    case "$target" in
+    *-solaris*)
+        if test "$ac_cv_have_dash_pthreads" = "yes"; then
+            _PTHREAD_LDFLAGS=
+        fi
+	    ;;
+    *-freebsd*)
+	    AC_DEFINE(_REENTRANT)
+	    AC_DEFINE(_THREAD_SAFE)
+	    dnl -pthread links in -lc_r, so don't specify it explicitly.
+	    if test "$ac_cv_have_dash_pthread" = "yes"; then
+	        _PTHREAD_LDFLAGS="-pthread"
+	    else
+	        _PTHREAD_LDFLAGS="-lc_r"
+	    fi
+	    ;;
+    *-netbsd*)
+	    if test "$ac_cv_have_dash_pthread" = "yes"; then
+	        _PTHREAD_LDFLAGS="-pthread"
+	    fi
+	    ;;
+    *-bsdi*)
+	    AC_DEFINE(_THREAD_SAFE)
+	    dnl -pthread links in -lc_r, so don't specify it explicitly.
+	    if test "$ac_cv_have_dash_pthread" = "yes"; then
+	        _PTHREAD_LDFLAGS=
+	    fi
+	    ;;
+    *-openbsd*)
+        if test "$ac_cv_have_dash_pthread" = "yes"; then
+            _PTHREAD_LDFLAGS=-pthread
+        fi
+        ;;
+    *-linux*|*-gnu*|*-k*bsd*-gnu)
+        AC_DEFINE(_REENTRANT)
+        ;;
+    esac
+
+else 
+    if test -n "$USE_USER_PTHREADS"; then
+	    USE_PTHREADS=
+	    USE_NSPR_THREADS=
+    else
+        _PTHREAD_LDFLAGS=
+    fi
+fi
+dnl Special thread exceptions
+
+case "$target" in
+*-aix*)
+    if test -n "$USE_NSPR_THREADS"; then
+        AC_DEFINE(_PR_LOCAL_THREADS_ONLY)
+    fi
+    case "$target_os" in
+    aix4.1*)
+        if test -z "$USE_PTHREADS"; then
+            AC_DEFINE(AIX_RENAME_SELECT)
+        fi
+        ;;
+    aix4.2*)
+        if test -z "$USE_NSPR_THREADS"; then
+            AC_DEFINE(HAVE_POINTER_LOCALTIME_R)
+        fi
+        ;;
+    aix4.3*)
+        if test -z "$USE_NSPR_THREADS"; then
+            AC_DEFINE(HAVE_POINTER_LOCALTIME_R)
+        fi
+        if test -n "$USE_PTHREADS"; then
+            AC_DEFINE(_PR_HAVE_THREADSAFE_GETHOST)
+        fi
+        ;;
+    *)
+        if test -z "$USE_NSPR_THREADS"; then
+            AC_DEFINE(HAVE_POINTER_LOCALTIME_R)
+        fi
+        if test -n "$USE_PTHREADS"; then
+            AC_DEFINE(_PR_HAVE_THREADSAFE_GETHOST)
+        fi
+        ;;
+    esac
+    ;;
+*-bsdi*)
+    if test -n "$USE_PTHREADS"; then
+        AC_DEFINE(_PR_NEED_PTHREAD_INIT)
+    fi
+    ;;
+*-freebsd*)
+    if test -n "$USE_NSPR_THREADS"; then
+        AC_DEFINE(_PR_LOCAL_THREADS_ONLY)
+    fi
+    ;;
+*-hpux*)
+    if test -n "$USE_NSPR_THREADS"; then
+        AC_DEFINE(_PR_LOCAL_THREADS_ONLY)
+    fi 
+    if test "$USE_PTHREADS"; then
+        AC_DEFINE_UNQUOTED(_POSIX_C_SOURCE,199506L)
+        AC_DEFINE(_PR_HAVE_THREADSAFE_GETHOST)
+    fi
+    if test "$USE_USER_PTHREADS"; then
+        AC_DEFINE_UNQUOTED(_POSIX_C_SOURCE,199506L)
+    fi
+    ;;
+*-linux*|*-gnu*|*-k*bsd*-gnu)
+    if test -n "$USE_NSPR_THREADS"; then
+        AC_DEFINE(_PR_LOCAL_THREADS_ONLY)
+    fi
+    ;;
+*-mingw*|*-msys*|*-cygwin*|*-mks*|*-os2*)
+    dnl win32, os2 cannot use pthreads
+    USE_PTHREADS=
+    _PTHREAD_LDFLAGS=
+    USE_USER_PTHREADS=
+    ;;
+*-netbsd*|*-openbsd*)
+    if test -n "$USE_NSPR_THREADS"; then
+        AC_DEFINE(_PR_LOCAL_THREADS_ONLY)
+    fi
+    ;;
+*-solaris*)
+    if test -n "$USE_NSPR_THREADS"; then
+        AC_DEFINE(_PR_LOCAL_THREADS_ONLY)
+    fi
+    if test -n "$USE_PTHREADS"; then
+        AC_DEFINE(_REENTRANT)
+        AC_DEFINE(HAVE_POINTER_LOCALTIME_R)
+        if test "$OS_TEST" = "i86pc"; then
+            if test -n "$USE_64"; then
+               PR_MD_ASFILES=os_SunOS_x86_64.s
+            else
+               PR_MD_ASFILES=os_SunOS_x86.s
+            fi
+        else
+            if test -n "$USE_64"; then
+                PR_MD_ASFILES=os_SunOS_sparcv9.s
+            fi
+        fi
+    fi
+    ;;
+*-nto*)
+    if test -n "$USE_PTHREADS"; then
+        AC_DEFINE(_PR_HAVE_GETHOST_R)
+        AC_DEFINE(_PR_HAVE_GETHOST_R_POINTER)
+    fi
+    ;;
+esac
+
+OS_LIBS="$_PTHREAD_LDFLAGS $OS_LIBS"
+
+dnl If the user passed in arg to --enable-optimize or --enable-debug,
+dnl make sure that we use it.
+if test -n "$_SAVE_OPTIMIZE_FLAGS"; then
+    _OPTIMIZE_FLAGS="$_SAVE_OPTIMIZE_FLAGS"
+fi
+
+if test -n "$_SAVE_DEBUG_FLAGS"; then
+    _DEBUG_FLAGS="$_SAVE_DEBUG_FLAGS"
+fi
+
+if test -n "$MOZ_OPTIMIZE"; then
+    CFLAGS="$CFLAGS $_OPTIMIZE_FLAGS"
+    CXXFLAGS="$CXXFLAGS $_OPTIMIZE_FLAGS"
+fi
+
+if test -n "$MOZ_DEBUG_SYMBOLS"; then
+    CFLAGS="$CFLAGS $_DEBUG_FLAGS"
+    CXXFLAGS="$CXXFLAGS $_DEBUG_FLAGS"
+fi
+
+if test -n "$MOZ_OPTIMIZE"; then
+    OBJDIR_TAG=_OPT
+else
+    OBJDIR_TAG=_DBG
+fi
+
+if test -n "$USE_64"; then
+    COMPILER_TAG=_64
+fi
+
+RELEASE_OBJDIR_NAME="${OS_CONFIG}${CPU_ARCH_TAG}${COMPILER_TAG}${IMPL_STRATEGY}${OBJDIR_TAG}.${OBJDIR_SUFFIX}"
+
+dnl ========================================================
+dnl Use cygwin wrapper for win32 builds, except MSYS/MinGW
+dnl ========================================================
+case "$target_os" in
+cygwin*|mks*)
+    CC="\$(CYGWIN_WRAPPER) $CC"
+    CXX="\$(CYGWIN_WRAPPER) $CXX"
+    RC="\$(CYGWIN_WRAPPER) $RC"
+    ;;
+esac
+
+dnl ========================================================
+dnl = Use malloc wrapper lib
+dnl ========================================================
+AC_ARG_ENABLE(wrap-malloc,
+[  --enable-wrap-malloc    Wrap malloc calls (gnu linker only)],
+[     if test "$enableval" = "yes"; then
+	    _WRAP_MALLOC=1
+      fi ])
+
+if test -n "$_WRAP_MALLOC"; then
+    if test -n "$GNU_CC"; then
+        WRAP_LDFLAGS="${WRAP_LDFLAGS} -Wl,--wrap=malloc,--wrap=calloc,--wrap=valloc,--wrap=free,--wrap=realloc,--wrap=memalign"
+        WRAP_LDFLAGS="${WRAP_LDFLAGS} -Wl,--wrap=__builtin_new,--wrap=__builtin_vec_new,--wrap=__builtin_delete,--wrap=__builtin_vec_delete"
+        WRAP_LDFLAGS="${WRAP_LDFLAGS} -Wl,--wrap=strdup,--wrap=strndup"
+        WRAP_LDFLAGS="${WRAP_LDFLAGS} -Wl,--wrap=posix_memalign,--wrap=malloc_usable_size"
+    else
+        AC_MSG_ERROR([--enable-wrap-malloc is not supported for non-GNU toolchains])
+    fi
+fi
+
+dnl ========================================================
+dnl = Location of malloc wrapper lib
+dnl ========================================================
+AC_ARG_WITH(wrap-malloc,
+[  --with-wrap-malloc=SHAREDLIB  Location of malloc wrapper library],
+    WRAP_LDFLAGS="${WRAP_LDFLAGS} $withval")
+
+dnl ========================================================
+dnl Substitution of found variables.
+dnl ========================================================
+AC_SUBST(SHELL_OVERRIDE)
+
+AC_SUBST(MOZILLA_CLIENT)
+AC_SUBST(CC)
+AC_SUBST(CXX)
+AC_SUBST(CFLAGS)
+AC_SUBST(CXXFLAGS)
+AC_SUBST(CPPFLAGS)
+AC_SUBST(HOST_CC)
+AC_SUBST(HOST_CFLAGS)
+AC_SUBST(LDFLAGS)
+AC_SUBST(HOST_LDFLAGS)
+AC_SUBST(GNU_CC)
+AC_SUBST(GCC_USE_GNU_LD)
+AC_SUBST(MSC_VER)
+AC_SUBST(CROSS_COMPILE)
+
+AC_SUBST(MOZ_OPTIMIZE)
+AC_SUBST(MOZ_DEBUG)
+AC_SUBST(MOZ_DEBUG_SYMBOLS)
+
+AC_SUBST(USE_CPLUS)
+AC_SUBST(USE_IPV6)
+AC_SUBST(USE_N32)
+AC_SUBST(USE_X32)
+AC_SUBST(USE_64)
+AC_SUBST(OBJECT_MODE)
+AC_SUBST(ENABLE_STRIP)
+
+AC_SUBST(USE_PTHREADS)
+AC_SUBST(USE_BTHREADS)
+AC_SUBST(USE_USER_PTHREADS)
+AC_SUBST(USE_NSPR_THREADS)
+
+AC_SUBST(LIBNSPR)
+AC_SUBST(LIBPLC)
+
+AC_SUBST(MOD_MAJOR_VERSION)
+AC_SUBST(MOD_MINOR_VERSION)
+AC_SUBST(MOD_PATCH_VERSION)
+AC_SUBST(NSPR_MODNAME)
+AC_SUBST(MDCPUCFG_H)
+AC_SUBST(PR_MD_CSRCS)
+AC_SUBST(PR_MD_ASFILES)
+AC_SUBST(PR_MD_ARCH_DIR)
+AC_SUBST(CPU_ARCH)
+
+AC_SUBST(OBJ_SUFFIX)
+AC_SUBST(LIB_SUFFIX)
+AC_SUBST(DLL_SUFFIX)
+AC_SUBST(ASM_SUFFIX)
+AC_SUBST(WRAP_LDFLAGS)
+AC_SUBST(MKSHLIB)
+AC_SUBST(DSO_CFLAGS)
+AC_SUBST(DSO_LDOPTS)
+
+AC_SUBST(OS_TARGET)
+AC_SUBST(OS_ARCH)
+AC_SUBST(OS_RELEASE)
+AC_SUBST(OS_TEST)
+AC_SUBST(MACOSX_DEPLOYMENT_TARGET)
+
+AC_SUBST(DEFINES)
+AC_SUBST(DEFS)
+AC_SUBST(AR)
+AC_SUBST(AR_FLAGS)
+AC_SUBST(AS)
+AC_SUBST(ASFLAGS)
+AC_SUBST(LD)
+AC_SUBST(RANLIB)
+AC_SUBST(PERL)
+AC_SUBST(STRIP)
+AC_SUBST(FILTER)
+AC_SUBST(IMPLIB)
+
+AC_SUBST(PROFILE_GEN_CFLAGS)
+AC_SUBST(PROFILE_GEN_LDFLAGS)
+AC_SUBST(PROFILE_USE_CFLAGS)
+AC_SUBST(PROFILE_USE_LDFLAGS)
+
+AC_SUBST(OS_LIBS)
+AC_SUBST(RESOLVE_LINK_SYMBOLS)
+AC_SUBST(AIX_LINK_OPTS)
+AC_SUBST(NOSUCHFILE)
+AC_SUBST(MOZ_OBJFORMAT)
+AC_SUBST(ULTRASPARC_LIBRARY)
+
+AC_SUBST(OBJDIR)
+AC_SUBST(OBJDIR_NAME)
+AC_SUBST(RELEASE_OBJDIR_NAME)
+AC_SUBST(NSINSTALL)
+AC_SUBST(OPTIMIZER)
+AC_SUBST(RC)
+AC_SUBST(RCFLAGS)
+AC_SUBST(DLLFLAGS)
+AC_SUBST(EXEFLAGS)
+AC_SUBST(OS_DLLFLAGS)
+AC_SUBST(CYGWIN_WRAPPER)
+AC_SUBST(VISIBILITY_FLAGS)
+AC_SUBST(WRAP_SYSTEM_INCLUDES)
+AC_SUBST(MACOS_SDK_DIR)
+AC_SUBST(NEXT_ROOT)
+AC_SUBST(MT)
+
+dnl ========================================================
+dnl Generate output files.
+dnl ========================================================
+MAKEFILES="
+    Makefile
+    config/Makefile
+    config/autoconf.mk
+    config/nsprincl.mk
+    config/nsprincl.sh
+    config/nspr-config
+    config/nspr.pc
+    lib/Makefile
+    lib/ds/Makefile
+    lib/libc/Makefile
+    lib/libc/include/Makefile
+    lib/libc/src/Makefile
+    lib/tests/Makefile
+    pkg/Makefile
+    pr/Makefile
+    pr/include/Makefile
+    pr/include/md/Makefile
+    pr/include/obsolete/Makefile
+    pr/include/private/Makefile
+    pr/src/Makefile
+    pr/src/io/Makefile
+    pr/src/linking/Makefile
+    pr/src/malloc/Makefile
+    pr/src/md/Makefile
+    pr/src/md/${PR_MD_ARCH_DIR}/Makefile
+    pr/src/memory/Makefile
+    pr/src/misc/Makefile
+    pr/src/threads/Makefile
+    pr/tests/Makefile
+    pr/tests/dll/Makefile
+"
+
+if test "$OS_TARGET" = "Linux"; then
+    MAKEFILES="$MAKEFILES
+        pkg/linux/Makefile
+    "
+elif test "$OS_TARGET" = "SunOS"; then
+    MAKEFILES="$MAKEFILES
+        pkg/solaris/Makefile
+        pkg/solaris/SUNWpr/Makefile
+        pkg/solaris/SUNWprd/Makefile
+    "
+fi
+
+if test -z "$USE_PTHREADS" && test -z "$USE_BTHREADS"; then
+    MAKEFILES="$MAKEFILES
+        pr/src/threads/combined/Makefile
+    "
+elif test -n "$USE_PTHREADS"; then
+    MAKEFILES="$MAKEFILES
+        pr/src/pthreads/Makefile
+    "
+elif test -n "$USE_BTHREADS"; then
+    MAKEFILES="$MAKEFILES
+        pr/src/bthreads/Makefile
+    "
+fi
+
+if test -n "$USE_CPLUS"; then
+    MAKEFILES="$MAKEFILES
+        pr/src/cplus/Makefile
+        pr/src/cplus/tests/Makefile
+    "
+fi
+
+echo $MAKEFILES > unallmakefiles
+
+AC_CONFIG_FILES([$MAKEFILES])
+AC_CONFIG_COMMANDS([default], [chmod +x config/nspr-config])
+AC_OUTPUT