Adding upstream version 1.7.2.upstream/1.7.2

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

1 files changed, 522 insertions, 0 deletions

diff --git a/build/apr_hints.m4 b/build/apr_hints.m4
new file mode 100644
index 0000000..fd3d33d
--- /dev/null
+++ b/build/apr_hints.m4
@@ -0,0 +1,522 @@
+dnl -------------------------------------------------------- -*- autoconf -*-
+dnl Licensed to the Apache Software Foundation (ASF) under one or more
+dnl contributor license agreements.  See the NOTICE file distributed with
+dnl this work for additional information regarding copyright ownership.
+dnl The ASF licenses this file to You under the Apache License, Version 2.0
+dnl (the "License"); you may not use this file except in compliance with
+dnl the License.  You may obtain a copy of the License at
+dnl
+dnl     http://www.apache.org/licenses/LICENSE-2.0
+dnl
+dnl Unless required by applicable law or agreed to in writing, software
+dnl distributed under the License is distributed on an "AS IS" BASIS,
+dnl WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+dnl See the License for the specific language governing permissions and
+dnl limitations under the License.
+
+dnl -----------------------------------------------------------------
+dnl apr_hints.m4: APR's autoconf macros for platform-specific hints
+dnl
+dnl  We preload various configure settings depending
+dnl  on previously obtained platform knowledge.
+dnl  We allow all settings to be overridden from
+dnl  the command-line.
+dnl
+dnl  We maintain the "format" that we've used
+dnl  under 1.3.x, so we don't exactly follow
+dnl  what is "recommended" by autoconf.
+
+dnl
+dnl APR_PRELOAD
+dnl
+dnl  Preload various ENV/makefile params such as CC, CFLAGS, etc
+dnl  based on outside knowledge
+dnl
+dnl  Generally, we force the setting of CC, and add flags
+dnl  to CFLAGS, CPPFLAGS, LIBS and LDFLAGS. 
+dnl
+AC_DEFUN(APR_PRELOAD, [
+if test "x$apr_preload_done" != "xyes" ; then
+
+  apr_preload_done="yes"
+
+  echo "Applying APR hints file rules for $host"
+
+  case "$host" in
+    *mint)
+	APR_ADDTO(CPPFLAGS, [-DMINT -D_GNU_SOURCE])
+	;;
+    *MPE/iX*)
+	APR_ADDTO(CPPFLAGS, [-DMPE -D_POSIX_SOURCE -D_SOCKET_SOURCE])
+	APR_ADDTO(LIBS, [-lsvipc -lcurses])
+	APR_ADDTO(LDFLAGS, [-Xlinker \"-WL,cap=ia,ba,ph;nmstack=1024000\"])
+	;;
+    *-apple-aux3*)
+	APR_ADDTO(CPPFLAGS, [-DAUX3 -D_POSIX_SOURCE])
+	APR_ADDTO(LIBS, [-lposix -lbsd])
+	APR_ADDTO(LDFLAGS, [-s])
+	APR_SETVAR(SHELL, [/bin/ksh])
+	;;
+    *-ibm-aix*)
+	APR_ADDTO(CPPFLAGS, [-U__STR__ -D_THREAD_SAFE])
+        dnl _USR_IRS gets us the hstrerror() proto in netdb.h
+        case $host in
+            *-ibm-aix4.3)
+	        APR_ADDTO(CPPFLAGS, [-D_USE_IRS])
+	        ;;
+            *-ibm-aix5*)
+	        APR_ADDTO(CPPFLAGS, [-D_USE_IRS])
+	        ;;
+            *-ibm-aix4.3.*)
+                APR_ADDTO(CPPFLAGS, [-D_USE_IRS])
+                ;;
+        esac
+        dnl If using xlc, remember it, and give it the right options.
+        if $CC 2>&1 | grep 'xlc' > /dev/null; then
+          APR_SETIFNULL(AIX_XLC, [yes])
+          APR_ADDTO(CFLAGS, [-qHALT=E])
+        fi
+	APR_SETIFNULL(apr_sysvsem_is_global, [yes])
+	APR_SETIFNULL(apr_lock_method, [USE_SYSVSEM_SERIALIZE])
+        case $host in
+            *-ibm-aix3* | *-ibm-aix4.1.*)
+                ;;
+            *)
+                APR_ADDTO(LDFLAGS, [-Wl,-brtl])
+                ;;
+	esac
+        ;;
+    *-apollo-*)
+	APR_ADDTO(CPPFLAGS, [-DAPOLLO])
+	;;
+    *-dg-dgux*)
+	APR_ADDTO(CPPFLAGS, [-DDGUX])
+	;;
+    *-os2*)
+	APR_SETVAR(SHELL, [sh])
+	APR_SETIFNULL(apr_gethostbyname_is_thread_safe, [yes])
+	APR_SETIFNULL(apr_gethostbyaddr_is_thread_safe, [yes])
+	APR_SETIFNULL(apr_getservbyname_is_thread_safe, [yes])
+	;;
+    *-hi-hiux)
+	APR_ADDTO(CPPFLAGS, [-DHIUX])
+	;;
+    *-hp-hpux11.*)
+	APR_ADDTO(CPPFLAGS, [-DHPUX11 -D_REENTRANT -D_HPUX_SOURCE])
+	;;
+    *-hp-hpux10.*)
+ 	case $host in
+ 	  *-hp-hpux10.01)
+dnl	       # We know this is a problem in 10.01.
+dnl	       # Not a problem in 10.20.  Otherwise, who knows?
+	       APR_ADDTO(CPPFLAGS, [-DSELECT_NEEDS_CAST])
+	       ;;	     
+ 	esac
+	APR_ADDTO(CPPFLAGS, [-D_REENTRANT])
+	;;
+    *-hp-hpux*)
+	APR_ADDTO(CPPFLAGS, [-DHPUX -D_REENTRANT])
+	;;
+    *-linux*)
+	APR_ADDTO(CPPFLAGS, [-DLINUX -D_REENTRANT -D_GNU_SOURCE])
+	;;
+    *-lynx-lynxos)
+	APR_ADDTO(CPPFLAGS, [-D__NO_INCLUDE_WARN__ -DLYNXOS])
+	APR_ADDTO(LIBS, [-lbsd])
+	;;
+    *486-*-bsdi*)
+	APR_ADDTO(CFLAGS, [-m486])
+	;;
+    *-*-bsdi*)
+        case $host in
+            *bsdi4.1)
+                APR_ADDTO(CFLAGS, [-D_REENTRANT])
+                ;;
+        esac
+        ;;
+    *-openbsd*)
+	APR_ADDTO(CPPFLAGS, [-D_POSIX_THREADS])
+        # binding to an ephemeral port fails on OpenBSD so override
+        # the test for O_NONBLOCK inheritance across accept().
+        APR_SETIFNULL(ac_cv_o_nonblock_inherited, [yes])
+	;;
+    *-netbsd*)
+	APR_ADDTO(CPPFLAGS, [-DNETBSD])
+        # fcntl() lies about O_NONBLOCK on an accept()ed socket (PR kern/26950)
+        APR_SETIFNULL(ac_cv_o_nonblock_inherited, [yes])
+	;;
+    *-freebsd*)
+        APR_SETIFNULL(apr_lock_method, [USE_FLOCK_SERIALIZE])
+        if test -x /sbin/sysctl; then
+            os_version=`/sbin/sysctl -n kern.osreldate`
+        else
+            os_version=000000
+        fi
+        # 502102 is when libc_r switched to libpthread (aka libkse).
+        if test $os_version -ge "502102"; then
+          apr_cv_pthreads_cflags="none"
+          apr_cv_pthreads_lib="-lpthread"
+        else
+          APR_ADDTO(CPPFLAGS, [-D_THREAD_SAFE -D_REENTRANT])
+          APR_SETIFNULL(enable_threads, [no])
+        fi
+        # prevent use of KQueue before FreeBSD 4.8
+        if test $os_version -lt "480000"; then
+          APR_SETIFNULL(ac_cv_func_kqueue, no)
+        fi
+	;;
+    *-k*bsd*-gnu)
+        APR_ADDTO(CPPFLAGS, [-D_REENTRANT -D_GNU_SOURCE])
+        ;;
+    *-gnu*|*-GNU*)
+        APR_ADDTO(CPPFLAGS, [-D_REENTRANT -D_GNU_SOURCE -DHURD])
+        ;;
+    *-next-nextstep*)
+	APR_SETIFNULL(CFLAGS, [-O])
+	APR_ADDTO(CPPFLAGS, [-DNEXT])
+	;;
+    *-next-openstep*)
+	APR_SETIFNULL(CFLAGS, [-O])
+	APR_ADDTO(CPPFLAGS, [-DNEXT])
+	;;
+    *-apple-rhapsody*)
+	APR_ADDTO(CPPFLAGS, [-DRHAPSODY])
+	;;
+    *-apple-darwin*)
+        APR_ADDTO(CPPFLAGS, [-DDARWIN -DSIGPROCMASK_SETS_THREAD_MASK])
+        APR_SETIFNULL(apr_posixsem_is_global, [yes])
+        case $host in
+            *-apple-darwin[[1-9]].*)
+                # APR's use of kqueue has triggered kernel panics for some
+                # 10.5.x (Darwin 9.x) users when running the entire test suite.
+                # In 10.4.x, use of kqueue would cause the socket tests to hang.
+                # 10.6+ (Darwin 10.x is supposed to fix the KQueue issues
+                APR_SETIFNULL(ac_cv_func_kqueue, [no]) 
+                APR_SETIFNULL(ac_cv_func_poll, [no]) # See issue 34332
+            ;;
+            *-apple-darwin1?.*)
+                APR_ADDTO(CPPFLAGS, [-DDARWIN_10])
+            ;;
+        esac
+	;;
+    *-dec-osf*)
+	APR_ADDTO(CPPFLAGS, [-DOSF1])
+        # process-shared mutexes don't seem to work in Tru64 5.0
+        APR_SETIFNULL(apr_cv_process_shared_works, [no])
+	;;
+    *-nto-qnx*)
+	;;
+    *-qnx)
+	APR_ADDTO(CPPFLAGS, [-DQNX])
+	APR_ADDTO(LIBS, [-N128k -lunix])
+	;;
+    *-qnx32)
+	APR_ADDTO(CPPFLAGS, [-DQNX])
+	APR_ADDTO(CFLAGS, [-mf -3])
+	APR_ADDTO(LIBS, [-N128k -lunix])
+	;;
+    *-isc4*)
+	APR_ADDTO(CPPFLAGS, [-posix -DISC])
+	APR_ADDTO(LDFLAGS, [-posix])
+	APR_ADDTO(LIBS, [-linet])
+	;;
+    *-sco3.2v[[234]]*)
+	APR_ADDTO(CPPFLAGS, [-DSCO -D_REENTRANT])
+	if test "$GCC" = "no"; then
+	    APR_ADDTO(CFLAGS, [-Oacgiltz])
+	fi
+	APR_ADDTO(LIBS, [-lPW -lmalloc])
+	;;
+    *-sco3.2v5*)
+	APR_ADDTO(CPPFLAGS, [-DSCO5 -D_REENTRANT])
+	;;
+    *-sco_sv*|*-SCO_SV*)
+	APR_ADDTO(CPPFLAGS, [-DSCO -D_REENTRANT])
+	APR_ADDTO(LIBS, [-lPW -lmalloc])
+	;;
+    *-solaris2*)
+    	PLATOSVERS=`echo $host | sed 's/^.*solaris2.//'`
+	APR_ADDTO(CPPFLAGS, [-DSOLARIS2=$PLATOSVERS -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT])
+        if test $PLATOSVERS -eq 10; then
+            # pthread_mutex_timedlock is broken on Solaris 10.
+            # It can block without timeout in case of EDEADLK.
+            APR_SETIFNULL(ac_cv_func_pthread_mutex_timedlock, [no])
+        fi
+        if test $PLATOSVERS -ge 10; then
+            APR_SETIFNULL(apr_lock_method, [USE_PROC_PTHREAD_SERIALIZE])
+        else
+            APR_SETIFNULL(apr_lock_method, [USE_FCNTL_SERIALIZE])
+        fi
+        # readdir64_r error handling seems broken on Solaris (at least
+        # up till 2.8) -- it will return -1 at end-of-directory.
+        APR_SETIFNULL(ac_cv_func_readdir64_r, [no])
+	;;
+    *-sunos4*)
+	APR_ADDTO(CPPFLAGS, [-DSUNOS4])
+	;;
+    *-unixware1)
+	APR_ADDTO(CPPFLAGS, [-DUW=100])
+	;;
+    *-unixware2)
+	APR_ADDTO(CPPFLAGS, [-DUW=200])
+	APR_ADDTO(LIBS, [-lgen])
+	;;
+    *-unixware211)
+	APR_ADDTO(CPPFLAGS, [-DUW=211])
+	APR_ADDTO(LIBS, [-lgen])
+	;;
+    *-unixware212)
+	APR_ADDTO(CPPFLAGS, [-DUW=212])
+	APR_ADDTO(LIBS, [-lgen])
+	;;
+    *-unixware7)
+	APR_ADDTO(CPPFLAGS, [-DUW=700])
+	APR_ADDTO(LIBS, [-lgen])
+	;;
+    maxion-*-sysv4*)
+	APR_ADDTO(CPPFLAGS, [-DSVR4])
+	APR_ADDTO(LIBS, [-lc -lgen])
+	;;
+    *-*-powermax*)
+	APR_ADDTO(CPPFLAGS, [-DSVR4])
+	APR_ADDTO(LIBS, [-lgen])
+	;;
+    TPF)
+       APR_ADDTO(CPPFLAGS, [-DTPF -D_POSIX_SOURCE])
+       ;;
+    bs2000*-siemens-sysv*)
+	APR_SETIFNULL(CFLAGS, [-O])
+	APR_ADDTO(CPPFLAGS, [-DSVR4 -D_XPG_IV -D_KMEMUSER])
+	APR_ADDTO(LIBS, [-lsocket])
+	APR_SETIFNULL(enable_threads, [no])
+	;;
+    *-siemens-sysv4*)
+	APR_ADDTO(CPPFLAGS, [-DSVR4 -D_XPG_IV -DHAS_DLFCN -DUSE_MMAP_FILES -DUSE_SYSVSEM_SERIALIZED_ACCEPT])
+	APR_ADDTO(LIBS, [-lc])
+	;;
+    pyramid-pyramid-svr4)
+	APR_ADDTO(CPPFLAGS, [-DSVR4 -DNO_LONG_DOUBLE])
+	APR_ADDTO(LIBS, [-lc])
+	;;
+    DS/90\ 7000-*-sysv4*)
+	APR_ADDTO(CPPFLAGS, [-DUXPDS])
+	;;
+    *-tandem-sysv4*)
+	APR_ADDTO(CPPFLAGS, [-DSVR4])
+	;;
+    *-ncr-sysv4)
+	APR_ADDTO(CPPFLAGS, [-DSVR4 -DMPRAS])
+	APR_ADDTO(LIBS, [-lc -L/usr/ucblib -lucb])
+	;;
+    *-sysv4*)
+	APR_ADDTO(CPPFLAGS, [-DSVR4])
+	APR_ADDTO(LIBS, [-lc])
+	;;
+    88k-encore-sysv4)
+	APR_ADDTO(CPPFLAGS, [-DSVR4 -DENCORE])
+	APR_ADDTO(LIBS, [-lPW])
+	;;
+    *-uts*)
+	PLATOSVERS=`echo $host | sed 's/^.*,//'`
+	case $PLATOSVERS in
+	    2*) APR_ADDTO(CPPFLAGS, [-DUTS21])
+	        APR_ADDTO(CFLAGS, [-Xa -eft])
+	        APR_ADDTO(LIBS, [-lbsd -la])
+	        ;;
+	    *)  APR_ADDTO(CPPFLAGS, [-DSVR4])
+	        APR_ADDTO(CFLAGS, [-Xa])
+	        ;;
+	esac
+	;;
+    *-ultrix)
+	APR_ADDTO(CPPFLAGS, [-DULTRIX])
+	APR_SETVAR(SHELL, [/bin/sh5])
+	;;
+    *powerpc-tenon-machten*)
+	APR_ADDTO(LDFLAGS, [-Xlstack=0x14000 -Xldelcsect])
+	;;
+    *-machten*)
+	APR_ADDTO(LDFLAGS, [-stack 0x14000])
+	;;
+    *convex-v11*)
+	APR_ADDTO(CPPFLAGS, [-DCONVEXOS11])
+	APR_SETIFNULL(CFLAGS, [-O1])
+	APR_ADDTO(CFLAGS, [-ext])
+	;;
+    i860-intel-osf1)
+	APR_ADDTO(CPPFLAGS, [-DPARAGON])
+	;;
+    *-sequent-ptx2.*.*)
+	APR_ADDTO(CPPFLAGS, [-DSEQUENT=20])
+	APR_ADDTO(CFLAGS, [-Wc,-pw])
+	APR_ADDTO(LIBS, [-linet -lc -lseq])
+	;;
+    *-sequent-ptx4.0.*)
+	APR_ADDTO(CPPFLAGS, [-DSEQUENT=40])
+	APR_ADDTO(CFLAGS, [-Wc,-pw])
+	APR_ADDTO(LIBS, [-linet -lc])
+	;;
+    *-sequent-ptx4.[[123]].*)
+	APR_ADDTO(CPPFLAGS, [-DSEQUENT=41])
+	APR_ADDTO(CFLAGS, [-Wc,-pw])
+	APR_ADDTO(LIBS, [-lc])
+	;;
+    *-sequent-ptx4.4.*)
+	APR_ADDTO(CPPFLAGS, [-DSEQUENT=44])
+	APR_ADDTO(CFLAGS, [-Wc,-pw])
+	APR_ADDTO(LIBS, [-lc])
+	;;
+    *-sequent-ptx4.5.*)
+	APR_ADDTO(CPPFLAGS, [-DSEQUENT=45])
+	APR_ADDTO(CFLAGS, [-Wc,-pw])
+	APR_ADDTO(LIBS, [-lc])
+	;;
+    *-sequent-ptx5.0.*)
+	APR_ADDTO(CPPFLAGS, [-DSEQUENT=50])
+	APR_ADDTO(CFLAGS, [-Wc,-pw])
+	APR_ADDTO(LIBS, [-lc])
+	;;
+    *NEWS-OS*)
+	APR_ADDTO(CPPFLAGS, [-DNEWSOS])
+	;;
+    *-riscix)
+	APR_ADDTO(CPPFLAGS, [-DRISCIX])
+	APR_SETIFNULL(CFLAGS, [-O])
+	;;
+    *-irix*)
+	APR_ADDTO(CPPFLAGS, [-D_POSIX_THREAD_SAFE_FUNCTIONS])
+	;;
+    *beos*)
+        APR_ADDTO(CPPFLAGS, [-DBEOS])
+        PLATOSVERS=`uname -r`
+        APR_SETIFNULL(apr_process_lock_is_global, [yes])
+        case $PLATOSVERS in
+            5.0.4)
+                APR_ADDTO(LDFLAGS, [-L/boot/beos/system/lib])
+                APR_ADDTO(LIBS, [-lbind -lsocket])
+                APR_ADDTO(CPPFLAGS,[-DBONE7])
+                ;;
+            5.1)
+                APR_ADDTO(LDFLAGS, [-L/boot/beos/system/lib])
+                APR_ADDTO(LIBS, [-lbind -lsocket])
+                ;;
+	esac
+	APR_ADDTO(CPPFLAGS, [-DSIGPROCMASK_SETS_THREAD_MASK])
+        ;;
+    4850-*.*)
+	APR_ADDTO(CPPFLAGS, [-DSVR4 -DMPRAS])
+	APR_ADDTO(LIBS, [-lc -L/usr/ucblib -lucb])
+	;;
+    drs6000*)
+	APR_ADDTO(CPPFLAGS, [-DSVR4])
+	APR_ADDTO(LIBS, [-lc -L/usr/ucblib -lucb])
+	;;
+    m88k-*-CX/SX|CYBER)
+	APR_ADDTO(CPPFLAGS, [-D_CX_SX])
+	APR_ADDTO(CFLAGS, [-Xa])
+	;;
+    *-tandem-oss)
+	APR_ADDTO(CPPFLAGS, [-D_TANDEM_SOURCE -D_XOPEN_SOURCE_EXTENDED=1])
+	;;
+    *-ibm-os390)
+        APR_SETIFNULL(apr_lock_method, [USE_SYSVSEM_SERIALIZE])
+        APR_SETIFNULL(apr_sysvsem_is_global, [yes])
+        APR_SETIFNULL(apr_gethostbyname_is_thread_safe, [yes])
+        APR_SETIFNULL(apr_gethostbyaddr_is_thread_safe, [yes])
+        APR_SETIFNULL(apr_getservbyname_is_thread_safe, [yes])
+        AC_DEFINE(HAVE_ZOS_PTHREADS, 1, [Define for z/OS pthread API nuances])
+        APR_ADDTO(CPPFLAGS, [-U_NO_PROTO -DSIGPROCMASK_SETS_THREAD_MASK -DTCP_NODELAY=1])
+        ;;
+    *-ibm-as400)
+        APR_SETIFNULL(apr_lock_method, [USE_SYSVSEM_SERIALIZE])
+        APR_SETIFNULL(apr_process_lock_is_global, [yes])
+        APR_SETIFNULL(apr_gethostbyname_is_thread_safe, [yes])
+        APR_SETIFNULL(apr_gethostbyaddr_is_thread_safe, [yes])
+        APR_SETIFNULL(apr_getservbyname_is_thread_safe, [yes])
+        ;;
+    *mingw*)
+        APR_ADDTO(INTERNAL_CPPFLAGS, -DBINPATH=$apr_builddir/test/.libs)
+        APR_ADDTO(CPPFLAGS, [-DWIN32 -D__MSVCRT__])
+        APR_ADDTO(LDFLAGS, [-Wl,--enable-auto-import,--subsystem,console])
+        APR_SETIFNULL(have_unicode_fs, [1])
+        APR_SETIFNULL(have_proc_invoked, [1])
+        APR_SETIFNULL(apr_lock_method, [win32])
+        APR_SETIFNULL(apr_process_lock_is_global, [yes])
+        APR_SETIFNULL(apr_cv_use_lfs64, [yes])
+        APR_SETIFNULL(apr_cv_osuuid, [yes])
+        APR_SETIFNULL(apr_cv_tcp_nodelay_with_cork, [no])
+        APR_SETIFNULL(apr_thread_func, [__stdcall])
+        APR_SETIFNULL(ac_cv_o_nonblock_inherited, [yes])
+        APR_SETIFNULL(ac_cv_tcp_nodelay_inherited, [yes])
+        APR_SETIFNULL(ac_cv_file__dev_zero, [no])
+        APR_SETIFNULL(ac_cv_func_setpgrp_void, [no])
+        APR_SETIFNULL(ac_cv_func_mmap, [yes])
+        APR_SETIFNULL(ac_cv_define_sockaddr_in6, [yes])
+        APR_SETIFNULL(ac_cv_working_getaddrinfo, [yes])
+        APR_SETIFNULL(ac_cv_working_getnameinfo, [yes])
+        APR_SETIFNULL(ac_cv_func_gai_strerror, [yes])
+        case $host in
+            *mingw32*)
+                APR_SETIFNULL(apr_has_xthread_files, [1])
+                APR_SETIFNULL(apr_has_user, [1])
+                APR_SETIFNULL(apr_procattr_user_set_requires_password, [1])
+                dnl The real function is TransmitFile(), not sendfile(), but
+                dnl this bypasses the Linux/Solaris/AIX/etc. test and enables
+                dnl the TransmitFile() implementation.
+                APR_SETIFNULL(ac_cv_func_sendfile, [yes])
+                ;;
+            *mingwce)
+                APR_SETIFNULL(apr_has_xthread_files, [0])
+                APR_SETIFNULL(apr_has_user, [0])
+                APR_SETIFNULL(apr_procattr_user_set_requires_password, [0])
+                APR_SETIFNULL(ac_cv_func_sendfile, [no])
+                ;;
+        esac
+        ;;
+  esac
+
+fi
+])
+
+dnl
+dnl APR_CC_HINTS
+dnl
+dnl  Allows us to provide a default choice of compiler which
+dnl  the user can override.
+AC_DEFUN(APR_CC_HINTS, [
+case "$host" in
+  *-apple-aux3*)
+      APR_SETIFNULL(CC, [gcc])
+      ;;
+  bs2000*-siemens-sysv*)
+      APR_SETIFNULL(CC, [c89 -XLLML -XLLMK -XL -Kno_integer_overflow])
+      ;;
+  *convex-v11*)
+      APR_SETIFNULL(CC, [cc])
+      ;;
+  *-ibm-os390)
+      APR_SETIFNULL(CC, [cc])
+      ;;
+  *-ibm-as400)
+      APR_SETIFNULL(CC, [icc])
+      ;;
+  *-isc4*)
+      APR_SETIFNULL(CC, [gcc])
+      ;;
+  m88k-*-CX/SX|CYBER)
+      APR_SETIFNULL(CC, [cc])
+      ;;
+  *-next-openstep*)
+      APR_SETIFNULL(CC, [cc])
+      ;;
+  *-qnx32)
+      APR_SETIFNULL(CC, [cc -F])
+      ;;
+  *-tandem-oss)
+      APR_SETIFNULL(CC, [c89])
+      ;;
+  TPF)
+      APR_SETIFNULL(CC, [c89])
+      ;;
+esac
+])