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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:51:56 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 14:51:56 +0000
commitc77311c90aa045796b3adcd021e69901022f4649 (patch)
tree3a6c4cc9271c6f7f7c24feff0d1aea286eed0a06 /examples/rlfe
parentInitial commit. (diff)
downloadreadline-c77311c90aa045796b3adcd021e69901022f4649.tar.xz
readline-c77311c90aa045796b3adcd021e69901022f4649.zip
Adding upstream version 8.2.upstream/8.2upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--examples/rlfe/ChangeLog37
-rw-r--r--examples/rlfe/Makefile.in184
-rw-r--r--examples/rlfe/README78
-rw-r--r--examples/rlfe/config.h.in383
-rwxr-xr-xexamples/rlfe/configure5637
-rw-r--r--examples/rlfe/configure.in442
-rw-r--r--examples/rlfe/extern.h40
-rw-r--r--examples/rlfe/os.h531
-rw-r--r--examples/rlfe/pty.c388
-rw-r--r--examples/rlfe/rlfe.c792
-rw-r--r--examples/rlfe/screen.h2
11 files changed, 8514 insertions, 0 deletions
diff --git a/examples/rlfe/ChangeLog b/examples/rlfe/ChangeLog
new file mode 100644
index 0000000..ba41b2b
--- /dev/null
+++ b/examples/rlfe/ChangeLog
@@ -0,0 +1,37 @@
+2004-11-04 Per Bothner <per@bothner.com>
+
+ * pty.c: Import from screen-4.0.2.
+ * configure.in, Makefile.in, config.h.in: Set up autoconf handling,
+ copying a bunk of stuff over from screen.
+ * rlfe.c: Use OpenPTY from pty.c instead of get_master_pty.
+
+2004-11-03 Per Bothner <per@bothner.com>
+
+ * rlfe.c: Get input emphasis (boldening) more robust.
+
+ * rlfe.c: Various cleanups on comments and names.
+
+2003-11-07 Wolfgang Taeuber <wolfgang_taeuber@agilent.com>
+
+ * Specify a history file and the size of the history file with command
+ * line options; use EDITOR/VISUAL to set vi/emacs preference.
+
+1999-09-03 Chet Ramey <chet@nike.ins.cwru.edu>
+
+ * fep.c: Memmove is not universally available. This patch assumes
+ that an autoconf test has been performed, and that memcpy is
+ available without checking.
+
+ * fep.c: VDISCARD is not universally available, even when termios is.
+
+ * fep.c: If a system doesn't have TIOCSCTTY, the first `open'
+ performed after setsid allocates a controlling terminal. The
+ original code would leave the child process running on the slave pty
+ without a controlling tty if TIOCSCTTY was not available.
+
+ * fep.c: Most versions of SVR4, including solaris, don't allow
+ terminal ioctl calls on the master side of the pty.
+
+1999-08-28 Per Bothner <per@bothner.com>
+
+ * fep.c: Initial release.
diff --git a/examples/rlfe/Makefile.in b/examples/rlfe/Makefile.in
new file mode 100644
index 0000000..7d6fd53
--- /dev/null
+++ b/examples/rlfe/Makefile.in
@@ -0,0 +1,184 @@
+#
+# Makefile template for rlfe
+#
+# See machine dependant config.h for more configuration options.
+#
+
+srcdir = @srcdir@
+VPATH = @srcdir@
+
+DESTDIR =
+
+# Where to install screen.
+
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+# don't forget to change mandir and infodir in doc/Makefile.
+bindir = $(exec_prefix)/bin
+
+VERSION = @VERSION@
+SCREEN = screen-$(VERSION)
+
+CC = @CC@
+CFLAGS = @CFLAGS@
+CPPFLAGS = @CPPFLAGS@
+#LDFLAGS = -L$(READLINE_DIR)
+LDFLAGS = @LDFLAGS@
+LIBS = -lreadline -lhistory @LIBS@
+
+CPP=@CPP@
+CPP_DEPEND=$(CC) -MM
+
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+
+AWK = @AWK@
+
+OPTIONS=
+#OPTIONS= -DDEBUG
+
+SHELL=/bin/sh
+
+CFILES= rlfe.c pty.c
+HFILES= extern.h os.h screen.h
+EXTRA_DIST=configure.in configure Makefile.in config.h.in ChangeLog README
+OFILES= rlfe.o pty.o
+
+all: rlfe
+
+rlfe: $(OFILES)
+ $(CC) $(LDFLAGS) -o $@ $(OFILES) $(LIBS)
+
+rlfe-$(VERSION).tar.gz:
+ tar czf $@ $(CFILES) $(HFILES) $(EXTRA_DIST)
+
+.c.o:
+ $(CC) -c -I. -I$(srcdir) $(CPPFLAGS) $(M_CFLAGS) $(DEFS) $(OPTIONS) $(CFLAGS) $<
+
+install_bin: .version screen
+ -if [ -f $(DESTDIR)$(bindir)/$(SCREEN) ] && [ ! -f $(DESTDIR)$(bindir)/$(SCREEN).old ]; \
+ then mv $(DESTDIR)$(bindir)/$(SCREEN) $(DESTDIR)$(bindir)/$(SCREEN).old; fi
+ $(INSTALL_PROGRAM) screen $(DESTDIR)$(bindir)/$(SCREEN)
+ -chown root $(DESTDIR)$(bindir)/$(SCREEN) && chmod 4755 $(DESTDIR)$(bindir)/$(SCREEN)
+# This doesn't work if $(bindir)/screen is a symlink
+ -if [ -f $(DESTDIR)$(bindir)/screen ] && [ ! -f $(DESTDIR)$(bindir)/screen.old ]; then mv $(DESTDIR)$(bindir)/screen $(DESTDIR)$(bindir)/screen.old; fi
+ rm -f $(DESTDIR)$(bindir)/screen
+ (cd $(DESTDIR)$(bindir) && ln -sf $(SCREEN) screen)
+ cp $(srcdir)/utf8encodings/?? $(DESTDIR)$(SCREENENCODINGS)
+
+uninstall: .version
+ rm -f $(DESTDIR)$(bindir)/$(SCREEN)
+ rm -f $(DESTDIR)$(bindir)/screen
+ -mv $(DESTDIR)$(bindir)/screen.old $(DESTDIR)$(bindir)/screen
+ rm -f $(DESTDIR)$(ETCSCREENRC)
+ cd doc; $(MAKE) uninstall
+
+shadow:
+ mkdir shadow;
+ cd shadow; ln -s ../*.[ch] ../*.in ../*.sh ../configure ../doc ../terminfo ../etc .
+ rm -f shadow/term.h shadow/tty.c shadow/comm.h shadow/osdef.h
+ echo "install all Makefiles and config:" > shadow/Makefile
+ echo " rm -f config.cache" >> shadow/Makefile
+ echo " sh ./configure" >> shadow/Makefile
+
+term.h: term.c term.sh
+ AWK=$(AWK) srcdir=$(srcdir) sh $(srcdir)/term.sh
+
+kmapdef.c: term.h
+
+tty.c: tty.sh
+ sh $(srcdir)/tty.sh tty.c
+
+mostlyclean:
+ rm -f $(OFILES) rlfe *.o
+
+clean celan: mostlyclean
+ rm -f tty.c term.h comm.h osdef.h kmapdef.c core
+
+# Delete all files from the current directory that are created by
+# configuring or building the program.
+# building of term.h/comm.h requires awk. Keep it in the distribution
+# we keep config.h, as this file knows where 'make dist' finds the ETCSCREENRC.
+#distclean: mostlyclean
+# rm -f $(SCREEN).tar $(SCREEN).tar.gz
+# rm -f config.status Makefile
+# rm -f osdef.h doc/Makefile
+
+maintainer-clean:
+ @echo "This command is not even intended for maintainers to use;"
+ @echo "it deletes files that may require special tools to rebuild."
+
+
+# Delete everything from the current directory that can be
+# reconstructed with this Makefile.
+realclean: .version mostlyclean
+ rm -f $(SCREEN).tar $(SCREEN).tar.gz
+ rm -f config.status Makefile doc/Makefile
+ rm -f tty.c term.h comm.h osdef.h kmapdef.c
+ rm -f config.h
+ echo "install all Makefiles and config:" > Makefile
+ echo " sh ./configure" >> Makefile
+
+tags TAGS: $(CFILES)
+ -ctags *.sh $(CFILES) *.h
+ -ctags -e *.sh $(CFILES) *.h
+
+dist: .version $(SCREEN).tar.gz
+
+
+# Perform self-tests (if any).
+check:
+
+config:
+ rm -f config.cache
+ sh ./configure
+
+
+###############################################################################
+
+.version:
+ @rev=`sed < $(srcdir)/patchlevel.h -n -e '/#define REV/s/#define REV *//p'`; \
+ vers=`sed < $(srcdir)/patchlevel.h -n -e '/#define VERS/s/#define VERS *//p'`; \
+ pat=`sed < $(srcdir)/patchlevel.h -n -e '/#define PATCHLEVEL/s/#define PATCHLEVEL *//p'`; \
+ if [ "$${rev}.$${vers}.$${pat}" != "$(VERSION)" ]; then \
+ echo "This distribution is screen-$${rev}.$${vers}.$${pat}, but"; \
+ echo "the Makefile is from $(VERSION). Please update!"; exit 1; fi
+
+###############################################################################
+
+mdepend: $(CFILES) term.h
+ @rm -f DEPEND ; \
+ for i in ${CFILES} ; do \
+ echo "$$i" ; \
+ echo `echo "$$i" | sed -e 's/.c$$/.o/'`": $$i" `\
+ cc -E $$i |\
+ grep '^# .*"\./.*\.h"' |\
+ (sort -t'"' -u -k 2,2 2>/dev/null || sort -t'"' -u +1 -2) |\
+ sed -e 's/.*"\.\/\(.*\)".*/\1/'\
+ ` >> DEPEND ; \
+ done
+
+depend: depend.in
+ ./config.status || ./configure
+
+depend.in: $(CFILES) term.h
+ cp Makefile.in Makefile.in~
+ sed -e '/\#\#\# Dependencies/q' < Makefile.in > tmp_make
+ for i in $(CFILES); do echo $$i; $(CPP_DEPEND) $$i >> tmp_make; done
+ mv tmp_make Makefile.in
+
+Makefile makefile: config.status $(srcdir)/Makefile.in
+ CONFIG_FILES=Makefile CONFIG_HEADERS= $(SHELL) ./config.status
+
+config.status: $(srcdir)/configure
+ $(SHELL) ./config.status --recheck
+
+$(srcdir)/configure: $(srcdir)/configure.in
+ cd $(srcdir) && autoconf
+
+###############################################################################
+
+### Dependencies:
+pty.o: pty.c config.h
diff --git a/examples/rlfe/README b/examples/rlfe/README
new file mode 100644
index 0000000..9e1f689
--- /dev/null
+++ b/examples/rlfe/README
@@ -0,0 +1,78 @@
+rlfe (ReadLine Front-End) is a "universal wrapper" around readline.
+You specify an interactive program to run (typically a shell), and
+readline is used to edit input lines.
+
+There are other such front-ends; what distinguishes this one is that
+it monitors the state of the inferior pty, and if the inferior program
+switches its terminal to raw mode, then rlfe passes your characters
+through directly. This basically means you can run your entire
+session (including bash and terminal-mode emacs) under rlfe.
+
+FEATURES
+
+* Can use all readline commands (and history) in commands that
+read input lines in "canonical mode" - even 'cat'!
+
+* Automatically switches between "readline-editing mode" and "raw mode"
+depending on the terminal mode. If the inferior program invokes
+readline itself, it will do its own line editing. (The inferior
+readline will not know about rlfe, and it will have its own history.)
+You can even run programs like 'emavs -nw' and 'vi' under rlfe.
+The goal is you could leave rlfe always on without even knowing
+about it. (We're not quite there, but it works tolerably well.)
+
+* The input line (after any prompt) is changed to bold-face.
+
+INSTALL
+
+The usual: ./configure && make && make install
+
+Note so far rlfe has only been tested on GNU Linux (Fedora Core 2)
+and Mac OS X (10.3).
+
+This assumes readline header files and libraries are in the default
+places. If not, you can create a link named readline pointing to the
+readline sources. To link with libreadline.a and libhistory.a
+you can copy or link them, or add LDFLAGS='-/path/to/readline' to
+the make command-line.
+
+USAGE
+
+Just run it. That by default runs bash. You can run some other
+command by giving it as command-line arguments.
+
+There are a few tweaks: -h allows you to name the history file,
+and -s allows you to specify its size. It default to "emacs" mode,
+but if the the environment variable EDITOR is set to "vi" that
+mode is chosen.
+
+ISSUES
+
+* The mode switching depends on the terminal mode set by the inferior
+program. Thus ssh/telnet/screen-type programs will typically be in
+raw mode, so rlfe won't be much use, even if remote programs run in
+canonical mode. The work-around is to run rlfe on the remote end.
+
+* Echo supression and prompt recognition are somewhat fragile.
+(A protocol so that the o/s tty code can reliably communicate its
+state to rlfe could solve this problem, and the previous one.)
+
+* See the intro to rlfe.c for more notes.
+
+* Assumes a VT100-compatible terminal, though that could be generalized
+if anybody cares.
+
+* Requires ncurses.
+
+* It would be useful to integrate rlfe's logic in a terminal emulator.
+That would make it easier to reposition the edit position with a mouse,
+integrate cut-and-paste with the system clipboard, and more robustly
+handle escape sequence and multi-byte characters more robustly.
+
+AUTHOR
+
+Per Bothner <per@bothner.com>
+
+LICENSE
+
+GPL.
diff --git a/examples/rlfe/config.h.in b/examples/rlfe/config.h.in
new file mode 100644
index 0000000..a843fec
--- /dev/null
+++ b/examples/rlfe/config.h.in
@@ -0,0 +1,383 @@
+/* Copyright 2004 Per Bothner <per@bothner.com>
+ * Based on config.h from screen-4.0.2.
+ * Copyright (c) 1993-2000
+ * Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
+ * Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
+ * Copyright (c) 1987 Oliver Laumann
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING); if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ ****************************************************************
+ * $Id: config.h.in,v 1.12 1994/05/31 12:31:36 mlschroe Exp $ FAU
+ */
+
+
+
+
+
+/**********************************************************************
+ *
+ * User Configuration Section
+ */
+
+
+/*
+ * define PTYMODE if you do not like the default of 0622, which allows
+ * public write to your pty.
+ * define PTYGROUP to some numerical group-id if you do not want the
+ * tty to be in "your" group.
+ * Note, screen is unable to change mode or group of the pty if it
+ * is not installed with sufficient privilege. (e.g. set-uid-root)
+ * define PTYROFS if the /dev/pty devices are mounted on a read-only
+ * filesystem so screen should not even attempt to set mode or group
+ * even if running as root (e.g. on TiVo).
+ */
+#undef PTYMODE
+#undef PTYGROUP
+#undef PTYROFS
+
+/*
+ * If screen is NOT installed set-uid root, screen can provide tty
+ * security by exclusively locking the ptys. While this keeps other
+ * users from opening your ptys, it also keeps your own subprocesses
+ * from being able to open /dev/tty. Define LOCKPTY to add this
+ * exclusive locking.
+ */
+#undef LOCKPTY
+
+
+/**********************************************************************
+ *
+ * End of User Configuration Section
+ *
+ * Rest of this file is modified by 'configure'
+ * Change at your own risk!
+ *
+ */
+
+/*
+ * Some defines to identify special unix variants
+ */
+#ifndef SVR4
+#undef SVR4
+#endif
+
+#ifndef _POSIX_SOURCE
+#undef _POSIX_SOURCE
+#endif
+
+/*
+ * Define POSIX if your system supports IEEE Std 1003.1-1988 (POSIX).
+ */
+#undef POSIX
+
+/*
+ * Define TERMIO if you have struct termio instead of struct sgttyb.
+ * This is usually the case for SVID systems, where BSD uses sgttyb.
+ * POSIX systems should define this anyway, even though they use
+ * struct termios.
+ */
+#undef TERMIO
+
+/*
+ * Define CYTERMIO if you have cyrillic termio modes.
+ */
+#undef CYTERMIO
+
+/*
+ * Define TERMINFO if your machine emulates the termcap routines
+ * with the terminfo database.
+ * Thus the .screenrc file is parsed for
+ * the command 'terminfo' and not 'termcap'.
+ */
+#undef TERMINFO
+
+/*
+ * If your library does not define ospeed, define this.
+ */
+#undef NEED_OSPEED
+
+/*
+ * Define SYSV if your machine is SYSV complient (Sys V, HPUX, A/UX)
+ */
+#ifndef SYSV
+#undef SYSV
+#endif
+
+/*
+ * Define SIGVOID if your signal handlers return void. On older
+ * systems, signal returns int, but on newer ones, it returns void.
+ */
+#undef SIGVOID
+
+/*
+ * Define USESIGSET if you have sigset for BSD 4.1 reliable signals.
+ */
+#undef USESIGSET
+
+/*
+ * Define SYSVSIGS if signal handlers must be reinstalled after
+ * they have been called.
+ */
+#undef SYSVSIGS
+
+/*
+ * Define BSDWAIT if your system defines a 'union wait' in <sys/wait.h>
+ *
+ * Only allow BSDWAIT i.e. wait3 on nonposix systems, since
+ * posix implies wait(3) and waitpid(3). vdlinden@fwi.uva.nl
+ *
+ */
+#ifndef POSIX
+#undef BSDWAIT
+#endif
+
+/*
+ * On RISCOS we prefer wait2() over wait3(). rouilj@sni-usa.com
+ */
+#ifdef BSDWAIT
+#undef USE_WAIT2
+#endif
+
+/*
+ * Define if you have the utempter utmp helper program
+ */
+#undef HAVE_UTEMPTER
+
+/*
+ * If ttyslot() breaks getlogin() by returning indexes to utmp entries
+ * of type DEAD_PROCESS, then our getlogin() replacement should be
+ * selected by defining BUGGYGETLOGIN.
+ */
+#undef BUGGYGETLOGIN
+
+/*
+ * If your system has the calls setreuid() and setregid(),
+ * define HAVE_SETREUID. Otherwise screen will use a forked process to
+ * safely create output files without retaining any special privileges.
+ */
+#undef HAVE_SETREUID
+
+/*
+ * If your system supports BSD4.4's seteuid() and setegid(), define
+ * HAVE_SETEUID.
+ */
+#undef HAVE_SETEUID
+
+/*
+ * If you want the "time" command to display the current load average
+ * define LOADAV. Maybe you must install screen with the needed
+ * privileges to read /dev/kmem.
+ * Note that NLIST_ stuff is only checked, when getloadavg() is not available.
+ */
+#undef LOADAV
+
+#undef LOADAV_NUM
+#undef LOADAV_TYPE
+#undef LOADAV_SCALE
+#undef LOADAV_GETLOADAVG
+#undef LOADAV_UNIX
+#undef LOADAV_AVENRUN
+#undef LOADAV_USE_NLIST64
+
+#undef NLIST_DECLARED
+#undef NLIST_STRUCT
+#undef NLIST_NAME_UNION
+
+/*
+ * If your system has the new format /etc/ttys (like 4.3 BSD) and the
+ * getttyent(3) library functions, define GETTTYENT.
+ */
+#undef GETTTYENT
+
+/*
+ * Define USEBCOPY if the bcopy/memcpy from your system's C library
+ * supports the overlapping of source and destination blocks. When
+ * undefined, screen uses its own (probably slower) version of bcopy().
+ *
+ * SYSV machines may have a working memcpy() -- Oh, this is
+ * quite unlikely. Tell me if you see one.
+ * "But then, memmove() should work, if at all available" he thought...
+ * Boing, never say "works everywhere" unless you checked SCO UNIX.
+ * Their memove fails the test in the configure script. Sigh. (Juergen)
+ */
+#undef USEBCOPY
+#undef USEMEMCPY
+#undef USEMEMMOVE
+
+/*
+ * If your system has vsprintf() and requires the use of the macros in
+ * "varargs.h" to use functions with variable arguments,
+ * define USEVARARGS.
+ */
+#undef USEVARARGS
+
+/*
+ * If your system has strerror() define this.
+ */
+#undef HAVE_STRERROR
+
+/*
+ * If the select return value doesn't treat a descriptor that is
+ * usable for reading and writing as two hits, define SELECT_BROKEN.
+ */
+#undef SELECT_BROKEN
+
+/*
+ * Define this if your system supports named pipes.
+ */
+#undef NAMEDPIPE
+
+/*
+ * Define this if your system exits select() immediatly if a pipe is
+ * opened read-only and no writer has opened it.
+ */
+#undef BROKEN_PIPE
+
+/*
+ * Define this if the unix-domain socket implementation doesn't
+ * create a socket in the filesystem.
+ */
+#undef SOCK_NOT_IN_FS
+
+/*
+ * If your system has setenv() and unsetenv() define USESETENV
+ */
+#undef USESETENV
+
+/*
+ * If your system does not come with a setenv()/putenv()/getenv()
+ * functions, you may bring in our own code by defining NEEDPUTENV.
+ */
+#undef NEEDPUTENV
+
+/*
+ * If the passwords are stored in a shadow file and you want the
+ * builtin lock to work properly, define SHADOWPW.
+ */
+#undef SHADOWPW
+
+/*
+ * If you are on a SYS V machine that restricts filename length to 14
+ * characters, you may need to enforce that by setting NAME_MAX to 14
+ */
+#undef NAME_MAX /* KEEP_UNDEF_HERE override system value */
+#undef NAME_MAX
+
+/*
+ * define HAVE_RENAME if your system has a rename() function
+ */
+#undef HAVE_RENAME
+
+/*
+ * define HAVE__EXIT if your system has the _exit() call.
+ */
+#undef HAVE__EXIT
+
+/*
+ * define HAVE_LSTAT if your system has symlinks and the lstat() call.
+ */
+#undef HAVE_LSTAT
+
+/*
+ * define HAVE_UTIMES if your system has the utimes() call.
+ */
+#undef HAVE_UTIMES
+
+/*
+ * define HAVE_FCHOWN if your system has the fchown() call.
+ */
+#undef HAVE_FCHOWN
+
+/*
+ * define HAVE_FCHMOD if your system has the fchmod() call.
+ */
+#undef HAVE_FCHMOD
+
+/*
+ * define HAVE_VSNPRINTF if your system has vsnprintf() (GNU lib).
+ */
+#undef HAVE_VSNPRINTF
+
+/*
+ * define HAVE_GETCWD if your system has the getcwd() call.
+ */
+#undef HAVE_GETCWD
+
+/*
+ * define HAVE_SETLOCALE if your system has the setlocale() call.
+ */
+#undef HAVE_SETLOCALE
+
+/*
+ * define HAVE_STRFTIME if your system has the strftime() call.
+ */
+#undef HAVE_STRFTIME
+
+/*
+ * define HAVE_NL_LANGINFO if your system has the nl_langinfo() call
+ * and <langinfo.h> defines CODESET.
+ */
+#undef HAVE_NL_LANGINFO
+
+/*
+ * Newer versions of Solaris include fdwalk, which can greatly improve
+ * the startup time of screen; otherwise screen spends a lot of time
+ * closing file descriptors.
+ */
+#undef HAVE_FDWALK
+
+/*
+ * define HAVE_DEV_PTC if you have a /dev/ptc character special
+ * device.
+ */
+#undef HAVE_DEV_PTC
+
+/*
+ * define HAVE_SVR4_PTYS if you have a /dev/ptmx character special
+ * device and support the ptsname(), grantpt(), unlockpt() functions.
+ */
+#undef HAVE_SVR4_PTYS
+
+/*
+ * define HAVE_GETPT if you have the getpt() function.
+ */
+#undef HAVE_GETPT
+
+/*
+ * define HAVE_OPENPTY if your system has the openpty() call.
+ */
+#undef HAVE_OPENPTY
+
+/*
+ * define PTYRANGE0 and or PTYRANGE1 if you want to adapt screen
+ * to unusual environments. E.g. For SunOs the defaults are "qpr" and
+ * "0123456789abcdef". For SunOs 4.1.2
+ * #define PTYRANGE0 "pqrstuvwxyzPQRST"
+ * is recommended by Dan Jacobson.
+ */
+#undef PTYRANGE0
+#undef PTYRANGE1
+
+#define USEVARARGS
+
+#undef HAVE_SYS_STROPTS_H
+
+#undef HAVE_SYS_WAIT_H
+
+#undef HAVE_SGTTY_H
+
+#undef HAVE_SYS_SELECT_H
diff --git a/examples/rlfe/configure b/examples/rlfe/configure
new file mode 100755
index 0000000..3928331
--- /dev/null
+++ b/examples/rlfe/configure
@@ -0,0 +1,5637 @@
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.68.
+#
+#
+# Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
+# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 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
+
+if test "x$CONFIG_SHELL" = x; then
+ as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+ emulate sh
+ NULLCMD=:
+ # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+ # is contrary to our usage. Disable this feature.
+ alias -g '\${1+\"\$@\"}'='\"\$@\"'
+ setopt NO_GLOB_SUBST
+else
+ case \`(set -o) 2>/dev/null\` in #(
+ *posix*) :
+ set -o posix ;; #(
+ *) :
+ ;;
+esac
+fi
+"
+ as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
+
+exitcode=0
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+
+else
+ exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1"
+ as_suggested=" as_lineno_1=";as_suggested=$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 :
+ # 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
+ export CONFIG_SHELL
+ 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" ${1+"$@"}
+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_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; }
+
+ # 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$$ 2>/dev/null; then
+ as_ln_s='ln -s'
+ # ... but there are two gotchas:
+ # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+ # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+ # In both cases, we have to default to `cp -p'.
+ ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+ as_ln_s='cp -p'
+ elif ln conf$$.file conf$$ 2>/dev/null; then
+ as_ln_s=ln
+ else
+ as_ln_s='cp -p'
+ fi
+else
+ as_ln_s='cp -p'
+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
+
+if test -x / >/dev/null 2>&1; then
+ as_test_x='test -x'
+else
+ if ls -dL / >/dev/null 2>&1; then
+ as_ls_L_option=L
+ else
+ as_ls_L_option=
+ fi
+ as_test_x='
+ eval sh -c '\''
+ if test -d "$1"; then
+ test -d "$1/.";
+ else
+ case $1 in #(
+ -*)set "./$1";;
+ esac;
+ case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
+ ???[sx]*):;;*)false;;esac;fi
+ '\'' sh
+ '
+fi
+as_executable_p=$as_test_x
+
+# 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="rlfe.c"
+# 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
+XTERMPATH
+WRITEPATH
+AWK
+EGREP
+GREP
+CPP
+OBJEXT
+EXEEXT
+ac_ct_CC
+CPPFLAGS
+LDFLAGS
+CFLAGS
+CC
+VERSION
+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
+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_pty_mode
+with_pty_group
+'
+ ac_precious_vars='build_alias
+host_alias
+target_alias
+CC
+CFLAGS
+LDFLAGS
+LIBS
+CPPFLAGS
+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
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+ -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
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+ -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
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+ exec_prefix=$ac_optarg ;;
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+ -host | --host | --hos | --ho)
+ ac_prev=host_alias ;;
+ -host=* | --host=* | --hos=* | --ho=*)
+ host_alias=$ac_optarg ;;
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+ -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
+ ac_prev=htmldir ;;
+ -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
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+ htmldir=$ac_optarg ;;
+
+ -includedir | --includedir | --includedi | --included | --include \
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+ includedir=$ac_optarg ;;
+
+ -infodir | --infodir | --infodi | --infod | --info | --inf)
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+ -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
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+ -libdir | --libdir | --libdi | --libd)
+ ac_prev=libdir ;;
+ -libdir=* | --libdir=* | --libdi=* | --libd=*)
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+ -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
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+ -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
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+ libexecdir=$ac_optarg ;;
+
+ -localedir | --localedir | --localedi | --localed | --locale)
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+ -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
+ localedir=$ac_optarg ;;
+
+ -localstatedir | --localstatedir | --localstatedi | --localstated \
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+ -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
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+ localstatedir=$ac_optarg ;;
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+ -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
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+ mandir=$ac_optarg ;;
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+
+ -no-recursion | --no-recursion | --no-recursio | --no-recursi \
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+ no_recursion=yes ;;
+
+ -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+ | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+ | --oldin | --oldi | --old | --ol | --o)
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+ -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
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+ oldincludedir=$ac_optarg ;;
+
+ -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
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+
+ -program-prefix | --program-prefix | --program-prefi | --program-pref \
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+ program_prefix=$ac_optarg ;;
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+ -program-suffix | --program-suffix | --program-suffi | --program-suff \
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+ program_suffix=$ac_optarg ;;
+
+ -program-transform-name | --program-transform-name \
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+
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+ -q | -quiet | --quiet | --quie | --qui | --qu | --q \
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+ sbindir=$ac_optarg ;;
+
+ -sharedstatedir | --sharedstatedir | --sharedstatedi \
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+Usage: $0 [OPTION]... [VAR=VALUE]...
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+To assign environment variables (e.g., CC, CFLAGS...), specify them as
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+Defaults for the options are specified in brackets.
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+Configuration:
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+Fine tuning of the installation directories:
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+ --sbindir=DIR system admin executables [EPREFIX/sbin]
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+ --localstatedir=DIR modifiable single-machine data [PREFIX/var]
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+ --infodir=DIR info documentation [DATAROOTDIR/info]
+ --localedir=DIR locale-dependent data [DATAROOTDIR/locale]
+ --mandir=DIR man documentation [DATAROOTDIR/man]
+ --docdir=DIR documentation root [DATAROOTDIR/doc/PACKAGE]
+ --htmldir=DIR html documentation [DOCDIR]
+ --dvidir=DIR dvi documentation [DOCDIR]
+ --pdfdir=DIR pdf documentation [DOCDIR]
+ --psdir=DIR ps documentation [DOCDIR]
+_ACEOF
+
+ cat <<\_ACEOF
+_ACEOF
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+
+if test -n "$ac_init_help"; then
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+ cat <<\_ACEOF
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+ CFLAGS C compiler flags
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+ LIBS libraries to pass to the linker, e.g. -l<library>
+ CPPFLAGS (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
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+ CPP C preprocessor
+
+Use these variables to override the choices made by `configure' or to help
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+
+Report bugs to the package provider.
+_ACEOF
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+Copyright (C) 2010 Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
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+_ACEOF
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+} # ac_fn_c_try_run
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+
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+} # ac_fn_c_check_func
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+# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
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+#include <$2>
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+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
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+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
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+} # ac_fn_c_check_header_mongrel
+
+# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
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+} # ac_fn_c_check_header_compile
+cat >config.log <<_ACEOF
+This file contains any messages produced by compilers while
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+cat >&5 <<_ACEOF
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+_ACEOF
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+ | -silent | --silent | --silen | --sile | --sil)
+ continue ;;
+ *\'*)
+ ac_arg=`$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_config_headers="$ac_config_headers config.h"
+
+VERSION=0.4
+
+
+
+old_CFLAGS="$CFLAGS"
+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 '' $ac_executable_extensions; do
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$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 '' $ac_executable_extensions; do
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$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 '' $ac_executable_extensions; do
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$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 '' $ac_executable_extensions; do
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$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 '' $ac_executable_extensions; do
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$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 '' $ac_executable_extensions; do
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$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.$ac_ext
+/* end confdefs.h. */
+#include <stdarg.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+ char **p;
+ int i;
+{
+ return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+ char *s;
+ va_list v;
+ va_start (v,p);
+ s = g (p, va_arg (v,int));
+ va_end (v);
+ return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has
+ function prototypes and stuff, but not '\xHH' hex character constants.
+ These don't provoke an error unfortunately, instead are silently treated
+ as 'x'. The following induces an error, until -std is added to get
+ proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an
+ array size at least. It's necessary to write '\x00'==0 to get something
+ that's true only with -std. */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+ inside strings and character constants. */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
+ ;
+ return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+ -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+ CC="$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
+
+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
+
+
+
+{ $as_echo "$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"
+ { test -f "$ac_path_GREP" && $as_test_x "$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"
+ { test -f "$ac_path_EGREP" && $as_test_x "$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"
+
+
+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
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing strerror" >&5
+$as_echo_n "checking for library containing strerror... " >&6; }
+if ${ac_cv_search_strerror+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char strerror ();
+int
+main ()
+{
+return strerror ();
+ ;
+ return 0;
+}
+_ACEOF
+for ac_lib in '' cposix; do
+ if test -z "$ac_lib"; then
+ ac_res="none required"
+ else
+ ac_res=-l$ac_lib
+ LIBS="-l$ac_lib $ac_func_search_save_LIBS"
+ fi
+ if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_search_strerror=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext
+ if ${ac_cv_search_strerror+:} false; then :
+ break
+fi
+done
+if ${ac_cv_search_strerror+:} false; then :
+
+else
+ ac_cv_search_strerror=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_strerror" >&5
+$as_echo "$ac_cv_search_strerror" >&6; }
+ac_res=$ac_cv_search_strerror
+if test "$ac_res" != no; then :
+ test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+
+if test "$cross_compiling" = yes; then :
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+main(){exit(0);}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+else
+
+if test $CC != cc ; then
+echo "Your $CC failed - restarting with CC=cc" 1>&6
+
+echo "" 1>&6
+
+CC=cc
+export CC
+exec $0 $configure_args
+fi
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+
+if test "$cross_compiling" = yes; then :
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+main(){exit(0);}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+else
+ exec 5>&2
+eval $ac_link
+echo "CC=$CC; CFLAGS=$CFLAGS; LIBS=$LIBS;" 1>&6
+
+echo "$ac_compile" 1>&6
+
+as_fn_error $? "Can't run the compiler - sorry" "$LINENO" 5
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+
+if test "$cross_compiling" = yes; then :
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+main()
+{
+ int __something_strange_();
+ __something_strange_(0);
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+ as_fn_error $? "Your compiler does not set the exit status - sorry" "$LINENO" 5
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+
+for ac_prog in gawk mawk nawk awk
+do
+ # Extract the first word of "$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_AWK+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$AWK"; then
+ ac_cv_prog_AWK="$AWK" # Let the user override the test.
+else
+as_save_IFS=$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 '' $ac_executable_extensions; do
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+ ac_cv_prog_AWK="$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
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
+$as_echo "$AWK" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ test -n "$AWK" && break
+done
+
+
+if test -f etc/toolcheck; then
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for buggy tools..." >&5
+$as_echo "$as_me: checking for buggy tools..." >&6;}
+sh etc/toolcheck 1>&6
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for System V..." >&5
+$as_echo "$as_me: checking for System V..." >&6;}
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <sys/types.h>
+#include <signal.h>
+#include <fcntl.h>
+int
+main ()
+{
+int x = SIGCHLD | FNDELAY;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+ $as_echo "#define SYSV 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for Solaris 2.x..." >&5
+$as_echo "$as_me: checking for Solaris 2.x..." >&6;}
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#if defined(SVR4) && defined(sun)
+ yes
+#endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "yes" >/dev/null 2>&1; then :
+ LIBS="$LIBS -lsocket -lnsl -lkstat"
+fi
+rm -f conftest*
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking select..." >&5
+$as_echo "$as_me: checking select..." >&6;}
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+select(0, 0, 0, 0, 0);
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+else
+ LIBS="$LIBS -lnet -lnsl"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking select with $LIBS..." >&5
+$as_echo "$as_me: checking select with $LIBS..." >&6;}
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+select(0, 0, 0, 0, 0);
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+else
+ as_fn_error $? "!!! no select - no screen" "$LINENO" 5
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking select return value..." >&5
+$as_echo "$as_me: checking select return value..." >&6;}
+if test "$cross_compiling" = yes; then :
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+char *nam = "/tmp/conftest$$";
+
+#ifdef NAMEDPIPE
+
+#ifndef O_NONBLOCK
+#define O_NONBLOCK O_NDELAY
+#endif
+#ifndef S_IFIFO
+#define S_IFIFO 0010000
+#endif
+
+
+main()
+{
+#ifdef FD_SET
+ fd_set f;
+#else
+ int f;
+#endif
+
+#ifdef __FreeBSD__
+/* From Andrew A. Chernov (ache@astral.msk.su):
+ * opening RDWR fifo fails in BSD 4.4, but select return values are
+ * right.
+ */
+ exit(0);
+#endif
+ (void)alarm(5);
+#ifdef POSIX
+ if (mkfifo(nam, 0777))
+#else
+ if (mknod(nam, S_IFIFO|0777, 0))
+#endif
+ exit(1);
+ close(0);
+ if (open(nam, O_RDWR | O_NONBLOCK))
+ exit(1);
+ if (write(0, "TEST", 4) == -1)
+ exit(1);
+
+#else
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+main()
+{
+ int s1, s2, l;
+ struct sockaddr_un a;
+#ifdef FD_SET
+ fd_set f;
+#else
+ int f;
+#endif
+
+ (void)alarm(5);
+ if ((s1 = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
+ exit(1);
+ a.sun_family = AF_UNIX;
+ strcpy(a.sun_path, nam);
+ (void) unlink(nam);
+ if (bind(s1, (struct sockaddr *) &a, strlen(nam)+2) == -1)
+ exit(1);
+ if (listen(s1, 2))
+ exit(1);
+ if (fork() == 0)
+ {
+ if ((s2 = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
+ kill(getppid(), 3);
+ (void)connect(s2, (struct sockaddr *)&a, strlen(nam) + 2);
+ if (write(s2, "HELLO", 5) == -1)
+ kill(getppid(), 3);
+ exit(0);
+ }
+ l = sizeof(a);
+ close(0);
+ if (accept(s1, (struct sockaddr *)&a, &l))
+ exit(1);
+#endif
+
+
+#ifdef FD_SET
+ FD_SET(0, &f);
+#else
+ f = 1;
+#endif
+ if (select(1, &f, 0, 0, 0) == -1)
+ exit(1);
+ if (select(1, &f, &f, 0, 0) != 2)
+ exit(1);
+ exit(0);
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+ echo "- select is ok" 1>&6
+
+else
+ echo "- select can't count" 1>&6
+ $as_echo "#define SELECT_BROKEN 1" >>confdefs.h
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for tgetent..." >&5
+$as_echo "$as_me: checking for tgetent..." >&6;}
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+tgetent((char *)0, (char *)0);
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+else
+ olibs="$LIBS"
+LIBS="-lcurses $olibs"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking libcurses..." >&5
+$as_echo "$as_me: checking libcurses..." >&6;}
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+#ifdef __hpux
+__sorry_hpux_libcurses_is_totally_broken_in_10_10();
+#else
+tgetent((char *)0, (char *)0);
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+else
+ LIBS="-ltermcap $olibs"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking libtermcap..." >&5
+$as_echo "$as_me: checking libtermcap..." >&6;}
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+tgetent((char *)0, (char *)0);
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+else
+ LIBS="-ltermlib $olibs"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking libtermlib..." >&5
+$as_echo "$as_me: checking libtermlib..." >&6;}
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+tgetent((char *)0, (char *)0);
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+else
+ LIBS="-lncurses $olibs"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking libncurses..." >&5
+$as_echo "$as_me: checking libncurses..." >&6;}
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+tgetent((char *)0, (char *)0);
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+else
+ as_fn_error $? "!!! no tgetent - no screen" "$LINENO" 5
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+
+if test "$cross_compiling" = yes; then :
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+extern char *tgoto();
+main()
+{
+ exit(strcmp(tgoto("%p1%d", 0, 1), "1") ? 0 : 1);
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+ echo "- you use the termcap database" 1>&6
+
+else
+ echo "- you use the terminfo database" 1>&6
+ $as_echo "#define TERMINFO 1" >>confdefs.h
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking ospeed..." >&5
+$as_echo "$as_me: checking ospeed..." >&6;}
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+extern short ospeed;
+int
+main ()
+{
+ospeed=5;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+else
+ $as_echo "#define NEED_OSPEED 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for /dev/ptc..." >&5
+$as_echo "$as_me: checking for /dev/ptc..." >&6;}
+if test -r /dev/ptc; then
+$as_echo "#define HAVE_DEV_PTC 1" >>confdefs.h
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SVR4 ptys..." >&5
+$as_echo "$as_me: checking for SVR4 ptys..." >&6;}
+sysvr4ptys=
+if test -c /dev/ptmx ; then
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+ptsname(0);grantpt(0);unlockpt(0);
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ $as_echo "#define HAVE_SVR4_PTYS 1" >>confdefs.h
+
+sysvr4ptys=1
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+
+for ac_func in getpt
+do :
+ ac_fn_c_check_func "$LINENO" "getpt" "ac_cv_func_getpt"
+if test "x$ac_cv_func_getpt" = xyes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_GETPT 1
+_ACEOF
+
+fi
+done
+
+
+if test -z "$sysvr4ptys"; then
+for ac_func in openpty
+do :
+ ac_fn_c_check_func "$LINENO" "openpty" "ac_cv_func_openpty"
+if test "x$ac_cv_func_openpty" = xyes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_OPENPTY 1
+_ACEOF
+
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for openpty in -lutil" >&5
+$as_echo_n "checking for openpty in -lutil... " >&6; }
+if ${ac_cv_lib_util_openpty+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lutil $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$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 openpty ();
+int
+main ()
+{
+return openpty ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_util_openpty=yes
+else
+ ac_cv_lib_util_openpty=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_util_openpty" >&5
+$as_echo "$ac_cv_lib_util_openpty" >&6; }
+if test "x$ac_cv_lib_util_openpty" = xyes; then :
+ $as_echo "#define HAVE_OPENPTY 1" >>confdefs.h
+ LIBS="$LIBS -lutil"
+fi
+
+fi
+done
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ptyranges..." >&5
+$as_echo "$as_me: checking for ptyranges..." >&6;}
+if test -d /dev/ptym ; then
+pdir='/dev/ptym'
+else
+pdir='/dev'
+fi
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#ifdef M_UNIX
+ yes;
+#endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "yes" >/dev/null 2>&1; then :
+ ptys=`echo /dev/ptyp??`
+else
+ ptys=`echo $pdir/pty??`
+fi
+rm -f conftest*
+
+if test "$ptys" != "$pdir/pty??" ; then
+p0=`echo $ptys | tr ' ' '\012' | sed -e 's/^.*\(.\).$/\1/g' | sort -u | tr -d '\012'`
+p1=`echo $ptys | tr ' ' '\012' | sed -e 's/^.*\(.\)$/\1/g' | sort -u | tr -d '\012'`
+cat >>confdefs.h <<_ACEOF
+#define PTYRANGE0 "$p0"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PTYRANGE1 "$p1"
+_ACEOF
+
+fi
+
+
+# Check whether --with-pty-mode was given.
+if test "${with_pty_mode+set}" = set; then :
+ withval=$with_pty_mode; ptymode="${withval}"
+fi
+
+
+# Check whether --with-pty-group was given.
+if test "${with_pty_group+set}" = set; then :
+ withval=$with_pty_group; ptygrp="${withval}"
+fi
+
+test -n "$ptymode" || ptymode=0620
+if test -n "$ptygrp" ; then
+cat >>confdefs.h <<_ACEOF
+#define PTYMODE $ptymode
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PTYGROUP $ptygrp
+_ACEOF
+
+else
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking default tty permissions/group..." >&5
+$as_echo "$as_me: checking default tty permissions/group..." >&6;}
+rm -f conftest_grp
+if test "$cross_compiling" = yes; then :
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdio.h>
+main()
+{
+ struct stat sb;
+ char *x,*ttyname();
+ int om, m;
+ FILE *fp;
+
+ if (!(x = ttyname(0))) exit(1);
+ if (stat(x, &sb)) exit(1);
+ om = sb.st_mode;
+ if (om & 002) exit(0);
+ m = system("mesg y");
+ if (m == -1 || m == 127) exit(1);
+ if (stat(x, &sb)) exit(1);
+ m = sb.st_mode;
+ if (chmod(x, om)) exit(1);
+ if (m & 002) exit(0);
+ if (sb.st_gid == getgid()) exit(1);
+ if (!(fp=fopen("conftest_grp", "w")))
+ exit(1);
+ fprintf(fp, "%d\n", sb.st_gid);
+ fclose(fp);
+ exit(0);
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+ if test -f conftest_grp; then
+ ptygrp=`cat conftest_grp`
+ echo "- pty mode: $ptymode, group: $ptygrp" 1>&6
+
+ cat >>confdefs.h <<_ACEOF
+#define PTYMODE $ptymode
+_ACEOF
+
+ cat >>confdefs.h <<_ACEOF
+#define PTYGROUP $ptygrp
+_ACEOF
+
+ else
+ echo "- ptys are world accessable" 1>&6
+
+ fi
+
+else
+
+ WRITEPATH=''
+ XTERMPATH=''
+ # Extract the first word of "write", so it can be a program name with args.
+set dummy write; 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_WRITEPATH+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ case $WRITEPATH in
+ [\\/]* | ?:[\\/]*)
+ ac_cv_path_WRITEPATH="$WRITEPATH" # 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 '' $ac_executable_extensions; do
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+ ac_cv_path_WRITEPATH="$as_dir/$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
+WRITEPATH=$ac_cv_path_WRITEPATH
+if test -n "$WRITEPATH"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $WRITEPATH" >&5
+$as_echo "$WRITEPATH" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ # Extract the first word of "xterm", so it can be a program name with args.
+set dummy xterm; 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_XTERMPATH+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ case $XTERMPATH in
+ [\\/]* | ?:[\\/]*)
+ ac_cv_path_XTERMPATH="$XTERMPATH" # 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 '' $ac_executable_extensions; do
+ if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+ ac_cv_path_XTERMPATH="$as_dir/$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
+XTERMPATH=$ac_cv_path_XTERMPATH
+if test -n "$XTERMPATH"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $XTERMPATH" >&5
+$as_echo "$XTERMPATH" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ found=
+ if test -n "$WRITEPATH$XTERMPATH"; then
+ findfollow=
+ lsfollow=
+ found=`find $WRITEPATH $XTERMPATH -follow -print 2>/dev/null`
+ if test -n "$found"; then
+ findfollow=-follow
+ lsfollow=L
+ fi
+ if test -n "$XTERMPATH"; then
+ ptygrpn=`ls -l$lsfollow $XTERMPATH | sed -n -e 1p | $AWK '{print $4}'`
+ if test tty != "$ptygrpn"; then
+ XTERMPATH=
+ fi
+ fi
+ fi
+ if test -n "$WRITEPATH$XTERMPATH"; then
+ found=`find $WRITEPATH $XTERMPATH $findfollow -perm -2000 -print`
+ if test -n "$found"; then
+ ptygrp=`ls -ln$lsfollow $found | sed -n -e 1p | $AWK '{print $4}'`
+ echo "- pty mode: $ptymode, group: $ptygrp" 1>&6
+
+ cat >>confdefs.h <<_ACEOF
+#define PTYMODE $ptymode
+_ACEOF
+
+ cat >>confdefs.h <<_ACEOF
+#define PTYGROUP $ptygrp
+_ACEOF
+
+ else
+ echo "- ptys are world accessable" 1>&6
+
+ fi
+ else
+ echo "- can't determine - assume ptys are world accessable" 1>&6
+
+ fi
+
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+rm -f conftest_grp
+fi
+
+if test -n "$posix" ; then
+
+echo "assuming posix signal definition" 1>&6
+
+$as_echo "#define SIGVOID 1" >>confdefs.h
+
+
+else
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking return type of signal handlers..." >&5
+$as_echo "$as_me: checking return type of signal handlers..." >&6;}
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <sys/types.h>
+#include <signal.h>
+#ifdef signal
+#undef signal
+#endif
+extern void (*signal ()) ();
+int
+main ()
+{
+int i;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ $as_echo "#define SIGVOID 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking sigset..." >&5
+$as_echo "$as_me: checking sigset..." >&6;}
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+#include <sys/types.h>
+#include <signal.h>
+
+int
+main ()
+{
+
+#ifdef SIGVOID
+sigset(0, (void (*)())0);
+#else
+sigset(0, (int (*)())0);
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ $as_echo "#define USESIGSET 1" >>confdefs.h
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking signal implementation..." >&5
+$as_echo "$as_me: checking signal implementation..." >&6;}
+if test "$cross_compiling" = yes; then :
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run test program while cross compiling
+See \`config.log' for more details" "$LINENO" 5; }
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+#include <sys/types.h>
+#include <signal.h>
+
+#ifndef SIGCLD
+#define SIGCLD SIGCHLD
+#endif
+#ifdef USESIGSET
+#define signal sigset
+#endif
+
+int got;
+
+#ifdef SIGVOID
+void
+#endif
+hand()
+{
+ got++;
+}
+
+main()
+{
+ /* on hpux we use sigvec to get bsd signals */
+#ifdef __hpux
+ (void)signal(SIGCLD, hand);
+ kill(getpid(), SIGCLD);
+ kill(getpid(), SIGCLD);
+ if (got < 2)
+ exit(1);
+#endif
+ exit(0);
+}
+
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+else
+ $as_echo "#define SYSVSIGS 1" >>confdefs.h
+
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+
+fi
+
+{ $as_echo "$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" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+for ac_header in sys/stropts.h sys/wait.h sgtty.h sys/select.h
+do :
+ as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$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" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+for ac_header in term.h
+do :
+ ac_fn_c_check_header_mongrel "$LINENO" "term.h" "ac_cv_header_term_h" "$ac_includes_default"
+if test "x$ac_cv_header_term_h" = xyes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_TERM_H 1
+_ACEOF
+
+fi
+
+done
+
+
+ac_config_files="$ac_config_files Makefile"
+
+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}'
+
+DEFS=-DHAVE_CONFIG_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$$ 2>/dev/null; then
+ as_ln_s='ln -s'
+ # ... but there are two gotchas:
+ # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+ # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+ # In both cases, we have to default to `cp -p'.
+ ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+ as_ln_s='cp -p'
+ elif ln conf$$.file conf$$ 2>/dev/null; then
+ as_ln_s=ln
+ else
+ as_ln_s='cp -p'
+ fi
+else
+ as_ln_s='cp -p'
+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
+
+if test -x / >/dev/null 2>&1; then
+ as_test_x='test -x'
+else
+ if ls -dL / >/dev/null 2>&1; then
+ as_ls_L_option=L
+ else
+ as_ls_L_option=
+ fi
+ as_test_x='
+ eval sh -c '\''
+ if test -d "$1"; then
+ test -d "$1/.";
+ else
+ case $1 in #(
+ -*)set "./$1";;
+ esac;
+ case `ls -ld'$as_ls_L_option' "$1" 2>/dev/null` in #((
+ ???[sx]*):;;*)false;;esac;fi
+ '\'' sh
+ '
+fi
+as_executable_p=$as_test_x
+
+# 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 2.68. 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
+
+case $ac_config_headers in *"
+"*) set x $ac_config_headers; shift; ac_config_headers=$*;;
+esac
+
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+# Files that config.status was made for.
+config_files="$ac_config_files"
+config_headers="$ac_config_headers"
+
+_ACEOF
+
+cat >>$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 $as_me by reconfiguring in the same conditions
+ --file=FILE[:TEMPLATE]
+ instantiate the configuration file FILE
+ --header=FILE[:TEMPLATE]
+ instantiate the configuration header FILE
+
+Configuration files:
+$config_files
+
+Configuration headers:
+$config_headers
+
+Report bugs to the package provider."
+
+_ACEOF
+cat >>$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 $0, generated by GNU Autoconf 2.68,
+ with options \\"\$ac_cs_config\\"
+
+Copyright (C) 2010 Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+
+ac_pwd='$ac_pwd'
+srcdir='$srcdir'
+AWK='$AWK'
+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;;
+ --header | --heade | --head | --hea )
+ $ac_shift
+ case $ac_optarg in
+ *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+ esac
+ as_fn_append CONFIG_HEADERS " '$ac_optarg'"
+ ac_need_defaults=false;;
+ --he | --h)
+ # Conflict between --help and --header
+ as_fn_error $? "ambiguous option: \`$1'
+Try \`$0 --help' for more information.";;
+ --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 $ac_config_target in
+ "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
+ "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+
+ *) 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_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
+fi
+
+# Have a temporary directory for convenience. Make it in the build tree
+# simply because there is no reason against having it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Hook for its removal unless debugging.
+# Note that there is a small window in which the directory will not be cleaned:
+# after its creation but before its name has been assigned to `$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 "$CONFIG_FILES"
+
+# Set up the scripts for CONFIG_HEADERS section.
+# No need to generate them if there are no CONFIG_HEADERS.
+# This happens for instance with `./config.status Makefile'.
+if test -n "$CONFIG_HEADERS"; then
+cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
+BEGIN {
+_ACEOF
+
+# Transform confdefs.h into an awk script `defines.awk', embedded as
+# here-document in config.status, that substitutes the proper values into
+# config.h.in to produce config.h.
+
+# Create a delimiter string that does not exist in confdefs.h, to ease
+# handling of long lines.
+ac_delim='%!_!# '
+for ac_last_try in false false :; do
+ ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
+ if test -z "$ac_tt"; then
+ break
+ elif $ac_last_try; then
+ as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
+ else
+ ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+ fi
+done
+
+# For the awk script, D is an array of macro values keyed by name,
+# likewise P contains macro parameters if any. Preserve backslash
+# newline sequences.
+
+ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
+sed -n '
+s/.\{148\}/&'"$ac_delim"'/g
+t rset
+:rset
+s/^[ ]*#[ ]*define[ ][ ]*/ /
+t def
+d
+:def
+s/\\$//
+t bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3"/p
+s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2"/p
+d
+:bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3\\\\\\n"\\/p
+t cont
+s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p
+t cont
+d
+:cont
+n
+s/.\{148\}/&'"$ac_delim"'/g
+t clear
+:clear
+s/\\$//
+t bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/"/p
+d
+:bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
+b cont
+' <confdefs.h | sed '
+s/'"$ac_delim"'/"\\\
+"/g' >>$CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ for (key in D) D_is_set[key] = 1
+ FS = ""
+}
+/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ {
+ line = \$ 0
+ split(line, arg, " ")
+ if (arg[1] == "#") {
+ defundef = arg[2]
+ mac1 = arg[3]
+ } else {
+ defundef = substr(arg[1], 2)
+ mac1 = arg[2]
+ }
+ split(mac1, mac2, "(") #)
+ macro = mac2[1]
+ prefix = substr(line, 1, index(line, defundef) - 1)
+ if (D_is_set[macro]) {
+ # Preserve the white space surrounding the "#".
+ print prefix "define", macro P[macro] D[macro]
+ next
+ } else {
+ # Replace #undef with comments. This is necessary, for example,
+ # in the case of _POSIX_SOURCE, which is predefined and required
+ # on some systems where configure will not decide to define it.
+ if (defundef == "undef") {
+ print "/*", prefix defundef, macro, "*/"
+ next
+ }
+ }
+}
+{ print }
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+ as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
+fi # test -n "$CONFIG_HEADERS"
+
+
+eval set X " :F $CONFIG_FILES :H $CONFIG_HEADERS "
+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
+ ;;
+ :H)
+ #
+ # CONFIG_HEADER
+ #
+ if test x"$ac_file" != x-; then
+ {
+ $as_echo "/* $configure_input */" \
+ && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
+ } >"$ac_tmp/config.h" \
+ || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+ if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
+$as_echo "$as_me: $ac_file is unchanged" >&6;}
+ else
+ rm -f "$ac_file"
+ mv "$ac_tmp/config.h" "$ac_file" \
+ || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+ fi
+ else
+ $as_echo "/* $configure_input */" \
+ && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
+ || as_fn_error $? "could not create -" "$LINENO" 5
+ fi
+ ;;
+
+
+ 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/examples/rlfe/configure.in b/examples/rlfe/configure.in
new file mode 100644
index 0000000..ad7ce65
--- /dev/null
+++ b/examples/rlfe/configure.in
@@ -0,0 +1,442 @@
+dnl Process this file with autoconf to produce a configure script.
+
+AC_INIT(rlfe.c)
+AC_CONFIG_HEADER(config.h)
+VERSION=0.4
+AC_SUBST(VERSION)
+
+dnl
+dnl Define some useful macros
+dnl
+AC_DEFUN([AC_PROGRAM_SOURCE],
+[AC_REQUIRE([AC_PROG_CPP])AC_PROVIDE([$0])cat > conftest.c <<EOF
+#include "confdefs.h"
+[$1]
+_CUT_HERE_
+[$2]
+EOF
+eval "$ac_cpp conftest.c 2>&5 | sed -e '1,/_CUT_HERE_/d' -e 's/ //g' > conftest.out"
+. ./conftest.out
+rm -f conftest*
+])dnl
+dnl
+define(AC_NOTE,
+[echo "$1" 1>&AC_FD_MSG
+])dnl
+
+old_CFLAGS="$CFLAGS"
+AC_PROG_CC
+AC_PROG_CPP
+AC_PROG_GCC_TRADITIONAL
+AC_ISC_POSIX
+
+AC_TRY_RUN(main(){exit(0);},,[
+if test $CC != cc ; then
+AC_NOTE(Your $CC failed - restarting with CC=cc)
+AC_NOTE()
+CC=cc
+export CC
+exec $0 $configure_args
+fi
+])
+
+AC_TRY_RUN(main(){exit(0);},,
+exec 5>&2
+eval $ac_link
+AC_NOTE(CC=$CC; CFLAGS=$CFLAGS; LIBS=$LIBS;)
+AC_NOTE($ac_compile)
+AC_MSG_ERROR(Can't run the compiler - sorry))
+
+AC_TRY_RUN([
+main()
+{
+ int __something_strange_();
+ __something_strange_(0);
+}
+],AC_MSG_ERROR(Your compiler does not set the exit status - sorry))
+
+AC_PROG_AWK
+
+if test -f etc/toolcheck; then
+AC_CHECKING(for buggy tools)
+sh etc/toolcheck 1>&AC_FD_MSG
+fi
+
+dnl
+dnl **** special unix variants ****
+dnl
+
+AC_CHECKING(for System V)
+AC_TRY_COMPILE(
+[#include <sys/types.h>
+#include <signal.h>
+#include <fcntl.h>], [int x = SIGCHLD | FNDELAY;], , AC_DEFINE(SYSV))
+
+AC_CHECKING(for Solaris 2.x)
+AC_EGREP_CPP(yes,
+[#if defined(SVR4) && defined(sun)
+ yes
+#endif
+], LIBS="$LIBS -lsocket -lnsl -lkstat")
+
+dnl
+dnl **** select() ****
+dnl
+
+AC_CHECKING(select)
+AC_TRY_LINK(,[select(0, 0, 0, 0, 0);],,
+LIBS="$LIBS -lnet -lnsl"
+AC_CHECKING(select with $LIBS)
+AC_TRY_LINK(,[select(0, 0, 0, 0, 0);],,
+AC_MSG_ERROR(!!! no select - no screen))
+)
+dnl
+dnl **** check the select implementation ****
+dnl
+
+AC_CHECKING(select return value)
+AC_TRY_RUN([
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+char *nam = "/tmp/conftest$$";
+
+#ifdef NAMEDPIPE
+
+#ifndef O_NONBLOCK
+#define O_NONBLOCK O_NDELAY
+#endif
+#ifndef S_IFIFO
+#define S_IFIFO 0010000
+#endif
+
+
+main()
+{
+#ifdef FD_SET
+ fd_set f;
+#else
+ int f;
+#endif
+
+#ifdef __FreeBSD__
+/* From Andrew A. Chernov (ache@astral.msk.su):
+ * opening RDWR fifo fails in BSD 4.4, but select return values are
+ * right.
+ */
+ exit(0);
+#endif
+ (void)alarm(5);
+#ifdef POSIX
+ if (mkfifo(nam, 0777))
+#else
+ if (mknod(nam, S_IFIFO|0777, 0))
+#endif
+ exit(1);
+ close(0);
+ if (open(nam, O_RDWR | O_NONBLOCK))
+ exit(1);
+ if (write(0, "TEST", 4) == -1)
+ exit(1);
+
+#else
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+main()
+{
+ int s1, s2, l;
+ struct sockaddr_un a;
+#ifdef FD_SET
+ fd_set f;
+#else
+ int f;
+#endif
+
+ (void)alarm(5);
+ if ((s1 = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
+ exit(1);
+ a.sun_family = AF_UNIX;
+ strcpy(a.sun_path, nam);
+ (void) unlink(nam);
+ if (bind(s1, (struct sockaddr *) &a, strlen(nam)+2) == -1)
+ exit(1);
+ if (listen(s1, 2))
+ exit(1);
+ if (fork() == 0)
+ {
+ if ((s2 = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
+ kill(getppid(), 3);
+ (void)connect(s2, (struct sockaddr *)&a, strlen(nam) + 2);
+ if (write(s2, "HELLO", 5) == -1)
+ kill(getppid(), 3);
+ exit(0);
+ }
+ l = sizeof(a);
+ close(0);
+ if (accept(s1, (struct sockaddr *)&a, &l))
+ exit(1);
+#endif
+
+
+#ifdef FD_SET
+ FD_SET(0, &f);
+#else
+ f = 1;
+#endif
+ if (select(1, &f, 0, 0, 0) == -1)
+ exit(1);
+ if (select(1, &f, &f, 0, 0) != 2)
+ exit(1);
+ exit(0);
+}
+],AC_NOTE(- select is ok),
+AC_NOTE(- select can't count) AC_DEFINE(SELECT_BROKEN))
+
+dnl
+dnl **** termcap or terminfo ****
+dnl
+AC_CHECKING(for tgetent)
+AC_TRY_LINK(,tgetent((char *)0, (char *)0);,,
+olibs="$LIBS"
+LIBS="-lcurses $olibs"
+AC_CHECKING(libcurses)
+AC_TRY_LINK(,[
+#ifdef __hpux
+__sorry_hpux_libcurses_is_totally_broken_in_10_10();
+#else
+tgetent((char *)0, (char *)0);
+#endif
+],,
+LIBS="-ltermcap $olibs"
+AC_CHECKING(libtermcap)
+AC_TRY_LINK(,tgetent((char *)0, (char *)0);,,
+LIBS="-ltermlib $olibs"
+AC_CHECKING(libtermlib)
+AC_TRY_LINK(,tgetent((char *)0, (char *)0);,,
+LIBS="-lncurses $olibs"
+AC_CHECKING(libncurses)
+AC_TRY_LINK(,tgetent((char *)0, (char *)0);,,
+AC_MSG_ERROR(!!! no tgetent - no screen))))))
+
+AC_TRY_RUN([
+extern char *tgoto();
+main()
+{
+ exit(strcmp(tgoto("%p1%d", 0, 1), "1") ? 0 : 1);
+}], AC_NOTE(- you use the termcap database),
+AC_NOTE(- you use the terminfo database) AC_DEFINE(TERMINFO))
+AC_CHECKING(ospeed)
+AC_TRY_LINK(extern short ospeed;,ospeed=5;,,AC_DEFINE(NEED_OSPEED))
+
+dnl
+dnl **** PTY specific things ****
+dnl
+AC_CHECKING(for /dev/ptc)
+if test -r /dev/ptc; then
+AC_DEFINE(HAVE_DEV_PTC)
+fi
+
+AC_CHECKING(for SVR4 ptys)
+sysvr4ptys=
+if test -c /dev/ptmx ; then
+AC_TRY_LINK([],[ptsname(0);grantpt(0);unlockpt(0);],[AC_DEFINE(HAVE_SVR4_PTYS)
+sysvr4ptys=1])
+fi
+
+AC_CHECK_FUNCS(getpt)
+
+dnl check for openpty()
+if test -z "$sysvr4ptys"; then
+AC_CHECK_FUNCS(openpty,,
+[AC_CHECK_LIB(util,openpty, [AC_DEFINE(HAVE_OPENPTY)] [LIBS="$LIBS -lutil"])])
+fi
+
+AC_CHECKING(for ptyranges)
+if test -d /dev/ptym ; then
+pdir='/dev/ptym'
+else
+pdir='/dev'
+fi
+dnl SCO uses ptyp%d
+AC_EGREP_CPP(yes,
+[#ifdef M_UNIX
+ yes;
+#endif
+], ptys=`echo /dev/ptyp??`, ptys=`echo $pdir/pty??`)
+dnl if test -c /dev/ptyp19; then
+dnl ptys=`echo /dev/ptyp??`
+dnl else
+dnl ptys=`echo $pdir/pty??`
+dnl fi
+if test "$ptys" != "$pdir/pty??" ; then
+p0=`echo $ptys | tr ' ' '\012' | sed -e 's/^.*\(.\).$/\1/g' | sort -u | tr -d '\012'`
+p1=`echo $ptys | tr ' ' '\012' | sed -e 's/^.*\(.\)$/\1/g' | sort -u | tr -d '\012'`
+AC_DEFINE_UNQUOTED(PTYRANGE0,"$p0")
+AC_DEFINE_UNQUOTED(PTYRANGE1,"$p1")
+fi
+
+dnl **** pty mode/group handling ****
+dnl
+dnl support provided by Luke Mewburn <lm@rmit.edu.au>, 931222
+AC_ARG_WITH(pty-mode, [ --with-pty-mode=mode default mode for ptys], [ ptymode="${withval}" ])
+AC_ARG_WITH(pty-group, [ --with-pty-group=group default group for ptys], [ ptygrp="${withval}" ])
+test -n "$ptymode" || ptymode=0620
+if test -n "$ptygrp" ; then
+AC_DEFINE_UNQUOTED(PTYMODE, $ptymode)
+AC_DEFINE_UNQUOTED(PTYGROUP,$ptygrp)
+else
+
+AC_CHECKING(default tty permissions/group)
+rm -f conftest_grp
+AC_TRY_RUN([
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdio.h>
+main()
+{
+ struct stat sb;
+ char *x,*ttyname();
+ int om, m;
+ FILE *fp;
+
+ if (!(x = ttyname(0))) exit(1);
+ if (stat(x, &sb)) exit(1);
+ om = sb.st_mode;
+ if (om & 002) exit(0);
+ m = system("mesg y");
+ if (m == -1 || m == 127) exit(1);
+ if (stat(x, &sb)) exit(1);
+ m = sb.st_mode;
+ if (chmod(x, om)) exit(1);
+ if (m & 002) exit(0);
+ if (sb.st_gid == getgid()) exit(1);
+ if (!(fp=fopen("conftest_grp", "w")))
+ exit(1);
+ fprintf(fp, "%d\n", sb.st_gid);
+ fclose(fp);
+ exit(0);
+}
+],[
+ if test -f conftest_grp; then
+ ptygrp=`cat conftest_grp`
+ AC_NOTE([- pty mode: $ptymode, group: $ptygrp])
+ AC_DEFINE_UNQUOTED(PTYMODE, $ptymode)
+ AC_DEFINE_UNQUOTED(PTYGROUP,$ptygrp)
+ else
+ AC_NOTE(- ptys are world accessable)
+ fi
+],[
+ WRITEPATH=''
+ XTERMPATH=''
+ AC_PATH_PROG(WRITEPATH, write)
+ AC_PATH_PROG(XTERMPATH, xterm)
+ found=
+ if test -n "$WRITEPATH$XTERMPATH"; then
+ findfollow=
+ lsfollow=
+ found=`find $WRITEPATH $XTERMPATH -follow -print 2>/dev/null`
+ if test -n "$found"; then
+ findfollow=-follow
+ lsfollow=L
+ fi
+ if test -n "$XTERMPATH"; then
+ ptygrpn=`ls -l$lsfollow $XTERMPATH | sed -n -e 1p | $AWK '{print $4}'`
+ if test tty != "$ptygrpn"; then
+ XTERMPATH=
+ fi
+ fi
+ fi
+ if test -n "$WRITEPATH$XTERMPATH"; then
+ found=`find $WRITEPATH $XTERMPATH $findfollow -perm -2000 -print`
+ if test -n "$found"; then
+ ptygrp=`ls -ln$lsfollow $found | sed -n -e 1p | $AWK '{print $4}'`
+ AC_NOTE([- pty mode: $ptymode, group: $ptygrp])
+ AC_DEFINE_UNQUOTED(PTYMODE, $ptymode)
+ AC_DEFINE_UNQUOTED(PTYGROUP,$ptygrp)
+ else
+ AC_NOTE(- ptys are world accessable)
+ fi
+ else
+ AC_NOTE(- can't determine - assume ptys are world accessable)
+ fi
+ ]
+)
+rm -f conftest_grp
+fi
+
+dnl
+dnl **** signal handling ****
+dnl
+if test -n "$posix" ; then
+
+dnl POSIX has reliable signals with void return type.
+AC_NOTE(assuming posix signal definition)
+AC_DEFINE(SIGVOID)
+
+else
+
+AC_CHECKING(return type of signal handlers)
+AC_TRY_COMPILE(
+[#include <sys/types.h>
+#include <signal.h>
+#ifdef signal
+#undef signal
+#endif
+extern void (*signal ()) ();], [int i;], AC_DEFINE(SIGVOID))
+AC_CHECKING(sigset)
+AC_TRY_LINK([
+#include <sys/types.h>
+#include <signal.h>
+],[
+#ifdef SIGVOID
+sigset(0, (void (*)())0);
+#else
+sigset(0, (int (*)())0);
+#endif
+], AC_DEFINE(USESIGSET))
+AC_CHECKING(signal implementation)
+AC_TRY_RUN([
+#include <sys/types.h>
+#include <signal.h>
+
+#ifndef SIGCLD
+#define SIGCLD SIGCHLD
+#endif
+#ifdef USESIGSET
+#define signal sigset
+#endif
+
+int got;
+
+#ifdef SIGVOID
+void
+#endif
+hand()
+{
+ got++;
+}
+
+main()
+{
+ /* on hpux we use sigvec to get bsd signals */
+#ifdef __hpux
+ (void)signal(SIGCLD, hand);
+ kill(getpid(), SIGCLD);
+ kill(getpid(), SIGCLD);
+ if (got < 2)
+ exit(1);
+#endif
+ exit(0);
+}
+],,AC_DEFINE(SYSVSIGS))
+
+fi
+
+AC_CHECK_HEADERS(sys/stropts.h sys/wait.h sgtty.h sys/select.h)
+AC_CHECK_HEADERS(term.h)
+
+AC_OUTPUT(Makefile)
diff --git a/examples/rlfe/extern.h b/examples/rlfe/extern.h
new file mode 100644
index 0000000..2fe5025
--- /dev/null
+++ b/examples/rlfe/extern.h
@@ -0,0 +1,40 @@
+/* Copyright (c) 1993-2002
+ * Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
+ * Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
+ * Copyright (c) 1987 Oliver Laumann
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING); if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ ****************************************************************
+ * $Id: extern.h,v 1.18 1994/05/31 12:31:57 mlschroe Exp $ FAU
+ */
+
+#if !defined(__GNUC__) || __GNUC__ < 2
+#undef __attribute__
+#define __attribute__(x)
+#endif
+
+#if !defined (__P)
+# if defined (__STDC__) || defined (__GNUC__) || defined (__cplusplus)
+# define __P(protos) protos
+# else
+# define __P(protos) ()
+# endif
+#endif
+
+/* pty.c */
+extern int OpenPTY __P((char **));
+extern void InitPTY __P((int));
diff --git a/examples/rlfe/os.h b/examples/rlfe/os.h
new file mode 100644
index 0000000..df06c75
--- /dev/null
+++ b/examples/rlfe/os.h
@@ -0,0 +1,531 @@
+/* Copyright (c) 1993-2002
+ * Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
+ * Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
+ * Copyright (c) 1987 Oliver Laumann
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING); if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ ****************************************************************
+ * $Id: os.h,v 1.10 1994/05/31 12:32:22 mlschroe Exp $ FAU
+ */
+
+#include <stdio.h>
+#include <errno.h>
+
+#include <sys/param.h>
+
+/* In strict ANSI mode, HP-UX machines define __hpux but not hpux */
+#if defined(__hpux) && !defined(hpux)
+# define hpux
+#endif
+
+#if defined(__bsdi__) || defined(__386BSD__) || defined(_CX_UX) || defined(hpux) || defined(_IBMR2) || defined(linux)
+# include <signal.h>
+#endif /* __bsdi__ || __386BSD__ || _CX_UX || hpux || _IBMR2 || linux */
+
+#ifdef ISC
+# ifdef ENAMETOOLONG
+# undef ENAMETOOLONG
+# endif
+# ifdef ENOTEMPTY
+# undef ENOTEMPTY
+# endif
+# include <sys/bsdtypes.h>
+# include <net/errno.h>
+#endif
+
+#ifdef sun
+# define getpgrp __getpgrp
+# define exit __exit
+#endif
+#ifdef POSIX
+# include <unistd.h>
+# if defined(__STDC__)
+# include <stdlib.h>
+# endif /* __STDC__ */
+#endif /* POSIX */
+#ifdef sun
+# undef getpgrp
+# undef exit
+#endif /* sun */
+
+#ifndef linux /* all done in <errno.h> */
+extern int errno;
+#endif /* linux */
+#ifndef HAVE_STRERROR
+/* No macros, please */
+#undef strerror
+#endif
+
+#if !defined(SYSV) && !defined(linux)
+# ifdef NEWSOS
+# define strlen ___strlen___
+# include <strings.h>
+# undef strlen
+# else /* NEWSOS */
+# include <strings.h>
+# endif /* NEWSOS */
+#else /* SYSV */
+# if defined(SVR4) || defined(NEWSOS)
+# define strlen ___strlen___
+# include <string.h>
+# undef strlen
+# if !defined(NEWSOS) && !defined(__hpux)
+ extern size_t strlen(const char *);
+# endif
+# else /* SVR4 */
+# include <string.h>
+# endif /* SVR4 */
+#endif /* SYSV */
+
+#ifdef USEVARARGS
+# if defined(__STDC__)
+# include <stdarg.h>
+# define VA_LIST(var) va_list var;
+# define VA_DOTS ...
+# define VA_DECL
+# define VA_START(ap, fmt) va_start(ap, fmt)
+# define VA_ARGS(ap) ap
+# define VA_END(ap) va_end(ap)
+# else
+# include <varargs.h>
+# define VA_LIST(var) va_list var;
+# define VA_DOTS va_alist
+# define VA_DECL va_dcl
+# define VA_START(ap, fmt) va_start(ap)
+# define VA_ARGS(ap) ap
+# define VA_END(ap) va_end(ap)
+# endif
+#else
+# define VA_LIST(var)
+# define VA_DOTS p1, p2, p3, p4, p5, p6
+# define VA_DECL unsigned long VA_DOTS;
+# define VA_START(ap, fmt)
+# define VA_ARGS(ap) VA_DOTS
+# define VA_END(ap)
+# undef vsnprintf
+# define vsnprintf xsnprintf
+#endif
+
+#if !defined(sun) && !defined(B43) && !defined(ISC) && !defined(pyr) && !defined(_CX_UX)
+# include <time.h>
+#endif
+#include <sys/time.h>
+
+#ifdef M_UNIX /* SCO */
+# include <sys/stream.h>
+# include <sys/ptem.h>
+# define ftruncate(fd, s) chsize(fd, s)
+#endif
+
+#ifdef SYSV
+# define index strchr
+# define rindex strrchr
+# define bzero(poi,len) memset(poi,0,len)
+# define bcmp memcmp
+# define killpg(pgrp,sig) kill( -(pgrp), sig)
+#endif
+
+#ifndef HAVE_GETCWD
+# define getcwd(b,l) getwd(b)
+#endif
+
+#ifndef USEBCOPY
+# ifdef USEMEMMOVE
+# define bcopy(s,d,len) memmove(d,s,len)
+# else
+# ifdef USEMEMCPY
+# define bcopy(s,d,len) memcpy(d,s,len)
+# else
+# define NEED_OWN_BCOPY
+# define bcopy xbcopy
+# endif
+# endif
+#endif
+
+#ifdef hpux
+# define setreuid(ruid, euid) setresuid(ruid, euid, -1)
+# define setregid(rgid, egid) setresgid(rgid, egid, -1)
+#endif
+
+#if defined(HAVE_SETEUID) || defined(HAVE_SETREUID)
+# define USE_SETEUID
+#endif
+
+#if !defined(HAVE__EXIT) && !defined(_exit)
+#define _exit(x) exit(x)
+#endif
+
+#ifndef HAVE_UTIMES
+# define utimes utime
+#endif
+
+#ifdef BUILTIN_TELNET
+# include <netinet/in.h>
+# include <arpa/inet.h>
+#endif
+
+#if defined(USE_LOCALE) && (!defined(HAVE_SETLOCALE) || !defined(HAVE_STRFTIME))
+# undef USE_LOCALE
+#endif
+
+/*****************************************************************
+ * terminal handling
+ */
+
+#if defined (POSIX) || defined (__FreeBSD__)
+# include <termios.h>
+# ifdef hpux
+# include <bsdtty.h>
+# endif /* hpux */
+# ifdef NCCS
+# define MAXCC NCCS
+# else
+# define MAXCC 256
+# endif
+#else /* POSIX */
+# ifdef TERMIO
+# include <termio.h>
+# ifdef NCC
+# define MAXCC NCC
+# else
+# define MAXCC 256
+# endif
+# ifdef CYTERMIO
+# include <cytermio.h>
+# endif
+# else /* TERMIO */
+# if defined (HAVE_SGTTY_H)
+# include <sgtty.h>
+# endif
+# endif /* TERMIO */
+#endif /* POSIX */
+
+#ifndef VDISABLE
+# ifdef _POSIX_VDISABLE
+# define VDISABLE _POSIX_VDISABLE
+# else
+# define VDISABLE 0377
+# endif /* _POSIX_VDISABLE */
+#endif /* !VDISABLE */
+
+
+/* on sgi, regardless of the stream head's read mode (RNORM/RMSGN/RMSGD)
+ * TIOCPKT mode causes data loss if our buffer is too small (IOSIZE)
+ * to hold the whole packet at first read().
+ * (Marc Boucher)
+ *
+ * matthew green:
+ * TIOCPKT is broken on dgux 5.4.1 generic AViiON mc88100
+ *
+ * Joe Traister: On AIX4, programs like irc won't work if screen
+ * uses TIOCPKT (select fails to return on pty read).
+ */
+#if defined(sgi) || defined(DGUX) || defined(_IBMR2)
+# undef TIOCPKT
+#endif
+
+/* linux ncurses is broken, we have to use our own tputs */
+#if defined(linux) && defined(TERMINFO)
+# define tputs xtputs
+#endif
+
+/* Alexandre Oliva: SVR4 style ptys don't work with osf */
+#ifdef __osf__
+# undef HAVE_SVR4_PTYS
+#endif
+
+/*****************************************************************
+ * utmp handling
+ */
+
+#ifdef GETUTENT
+ typedef char *slot_t;
+#else
+ typedef int slot_t;
+#endif
+
+#if defined(UTMPOK) || defined(BUGGYGETLOGIN)
+# if defined(SVR4) && !defined(DGUX) && !defined(__hpux) && !defined(linux)
+# include <utmpx.h>
+# define UTMPFILE UTMPX_FILE
+# define utmp utmpx
+# define getutent getutxent
+# define getutid getutxid
+# define getutline getutxline
+# define pututline pututxline
+# define setutent setutxent
+# define endutent endutxent
+# define ut_time ut_xtime
+# else /* SVR4 */
+# include <utmp.h>
+# endif /* SVR4 */
+# ifdef apollo
+ /*
+ * We don't have GETUTENT, so we dig into utmp ourselves.
+ * But we save the permanent filedescriptor and
+ * open utmp just when we need to.
+ * This code supports an unsorted utmp. jw.
+ */
+# define UTNOKEEP
+# endif /* apollo */
+
+# ifndef UTMPFILE
+# ifdef UTMP_FILE
+# define UTMPFILE UTMP_FILE
+# else
+# ifdef _PATH_UTMP
+# define UTMPFILE _PATH_UTMP
+# else
+# define UTMPFILE "/etc/utmp"
+# endif /* _PATH_UTMP */
+# endif
+# endif
+
+#endif /* UTMPOK || BUGGYGETLOGIN */
+
+#if !defined(UTMPOK) && defined(USRLIMIT)
+# undef USRLIMIT
+#endif
+
+#ifdef LOGOUTOK
+# ifndef LOGINDEFAULT
+# define LOGINDEFAULT 0
+# endif
+#else
+# ifdef LOGINDEFAULT
+# undef LOGINDEFAULT
+# endif
+# define LOGINDEFAULT 1
+#endif
+
+
+/*****************************************************************
+ * file stuff
+ */
+
+#ifndef F_OK
+#define F_OK 0
+#endif
+#ifndef X_OK
+#define X_OK 1
+#endif
+#ifndef W_OK
+#define W_OK 2
+#endif
+#ifndef R_OK
+#define R_OK 4
+#endif
+
+#ifndef S_IFIFO
+#define S_IFIFO 0010000
+#endif
+#ifndef S_IREAD
+#define S_IREAD 0000400
+#endif
+#ifndef S_IWRITE
+#define S_IWRITE 0000200
+#endif
+#ifndef S_IEXEC
+#define S_IEXEC 0000100
+#endif
+
+#if defined(S_IFIFO) && defined(S_IFMT) && !defined(S_ISFIFO)
+#define S_ISFIFO(mode) (((mode) & S_IFMT) == S_IFIFO)
+#endif
+#if defined(S_IFSOCK) && defined(S_IFMT) && !defined(S_ISSOCK)
+#define S_ISSOCK(mode) (((mode) & S_IFMT) == S_IFSOCK)
+#endif
+#if defined(S_IFCHR) && defined(S_IFMT) && !defined(S_ISCHR)
+#define S_ISCHR(mode) (((mode) & S_IFMT) == S_IFCHR)
+#endif
+#if defined(S_IFDIR) && defined(S_IFMT) && !defined(S_ISDIR)
+#define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR)
+#endif
+#if defined(S_IFLNK) && defined(S_IFMT) && !defined(S_ISLNK)
+#define S_ISLNK(mode) (((mode) & S_IFMT) == S_IFLNK)
+#endif
+
+/*
+ * SunOS 4.1.3: `man 2V open' has only one line that mentions O_NOBLOCK:
+ *
+ * O_NONBLOCK Same as O_NDELAY above.
+ *
+ * on the very same SunOS 4.1.3, I traced the open system call and found
+ * that an open("/dev/ttyy08", O_RDWR|O_NONBLOCK|O_NOCTTY) was blocked,
+ * whereas open("/dev/ttyy08", O_RDWR|O_NDELAY |O_NOCTTY) went through.
+ *
+ * For this simple reason I now favour O_NDELAY. jw. 4.5.95
+ */
+#if defined(sun) && !defined(SVR4)
+# undef O_NONBLOCK
+#endif
+
+#if !defined(O_NONBLOCK) && defined(O_NDELAY)
+# define O_NONBLOCK O_NDELAY
+#endif
+
+#if !defined(FNBLOCK) && defined(FNONBLOCK)
+# define FNBLOCK FNONBLOCK
+#endif
+#if !defined(FNBLOCK) && defined(FNDELAY)
+# define FNBLOCK FNDELAY
+#endif
+#if !defined(FNBLOCK) && defined(O_NONBLOCK)
+# define FNBLOCK O_NONBLOCK
+#endif
+
+#ifndef POSIX
+#undef mkfifo
+#define mkfifo(n,m) mknod(n,S_IFIFO|(m),0)
+#endif
+
+#if !defined(HAVE_LSTAT) && !defined(lstat)
+# define lstat stat
+#endif
+
+/*****************************************************************
+ * signal handling
+ */
+
+#ifdef SIGVOID
+# define SIGRETURN
+# define sigret_t void
+#else
+# define SIGRETURN return 0;
+# define sigret_t int
+#endif
+
+/* Geeeee, reverse it? */
+#if defined(SVR4) || (defined(SYSV) && defined(ISC)) || defined(_AIX) || defined(linux) || defined(ultrix) || defined(__386BSD__) || defined(__bsdi__) || defined(POSIX) || defined(NeXT)
+# define SIGHASARG
+#endif
+
+#ifdef SIGHASARG
+# define SIGPROTOARG (int)
+# define SIGDEFARG (sigsig) int sigsig;
+# define SIGARG 0
+#else
+# define SIGPROTOARG (void)
+# define SIGDEFARG ()
+# define SIGARG
+#endif
+
+#ifndef SIGCHLD
+#define SIGCHLD SIGCLD
+#endif
+
+#if defined(POSIX) || defined(hpux)
+# define signal xsignal
+#else
+# ifdef USESIGSET
+# define signal sigset
+# endif /* USESIGSET */
+#endif
+
+/* used in screen.c and attacher.c */
+#ifndef NSIG /* kbeal needs these w/o SYSV */
+# define NSIG 32
+#endif /* !NSIG */
+
+
+/*****************************************************************
+ * Wait stuff
+ */
+
+#if (!defined(sysV68) && !defined(M_XENIX)) || defined(NeXT) || defined(M_UNIX)
+# include <sys/wait.h>
+#endif
+
+#ifndef WTERMSIG
+# ifndef BSDWAIT /* if wait is NOT a union: */
+# define WTERMSIG(status) (status & 0177)
+# else
+# define WTERMSIG(status) status.w_T.w_Termsig
+# endif
+#endif
+
+#ifndef WSTOPSIG
+# ifndef BSDWAIT /* if wait is NOT a union: */
+# define WSTOPSIG(status) ((status >> 8) & 0377)
+# else
+# define WSTOPSIG(status) status.w_S.w_Stopsig
+# endif
+#endif
+
+/* NET-2 uses WCOREDUMP */
+#if defined(WCOREDUMP) && !defined(WIFCORESIG)
+# define WIFCORESIG(status) WCOREDUMP(status)
+#endif
+
+#ifndef WIFCORESIG
+# ifndef BSDWAIT /* if wait is NOT a union: */
+# define WIFCORESIG(status) (status & 0200)
+# else
+# define WIFCORESIG(status) status.w_T.w_Coredump
+# endif
+#endif
+
+#ifndef WEXITSTATUS
+# ifndef BSDWAIT /* if wait is NOT a union: */
+# define WEXITSTATUS(status) ((status >> 8) & 0377)
+# else
+# define WEXITSTATUS(status) status.w_T.w_Retcode
+# endif
+#endif
+
+
+/*****************************************************************
+ * select stuff
+ */
+
+#if defined(M_XENIX) || defined(M_UNIX) || defined(_SEQUENT_) || defined (__INTERIX)
+#include <sys/select.h> /* for timeval + FD... */
+#endif
+
+/*
+ * SunOS 3.5 - Tom Schmidt - Micron Semiconductor, Inc - 27-Jul-93
+ * tschmidt@vax.micron.com
+ */
+#ifndef FD_SET
+# ifndef SUNOS3
+typedef struct fd_set { int fds_bits[1]; } fd_set;
+# endif
+# define FD_ZERO(fd) ((fd)->fds_bits[0] = 0)
+# define FD_SET(b, fd) ((fd)->fds_bits[0] |= 1 << (b))
+# define FD_ISSET(b, fd) ((fd)->fds_bits[0] & 1 << (b))
+# define FD_SETSIZE 32
+#endif
+
+
+/*****************************************************************
+ * user defineable stuff
+ */
+
+#ifndef TERMCAP_BUFSIZE
+# define TERMCAP_BUFSIZE 2048
+#endif
+
+#ifndef MAXPATHLEN
+# define MAXPATHLEN 1024
+#endif
+
+/*
+ * you may try to vary this value. Use low values if your (VMS) system
+ * tends to choke when pasting. Use high values if you want to test
+ * how many characters your pty's can buffer.
+ */
+#define IOSIZE 4096
diff --git a/examples/rlfe/pty.c b/examples/rlfe/pty.c
new file mode 100644
index 0000000..5562720
--- /dev/null
+++ b/examples/rlfe/pty.c
@@ -0,0 +1,388 @@
+/* Copyright (c) 1993-2002
+ * Juergen Weigert (jnweiger@immd4.informatik.uni-erlangen.de)
+ * Michael Schroeder (mlschroe@immd4.informatik.uni-erlangen.de)
+ * Copyright (c) 1987 Oliver Laumann
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program (see the file COPYING); if not, write to the
+ * Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ ****************************************************************
+ */
+#include "config.h"
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <signal.h>
+
+#include <unistd.h>
+
+#include "screen.h"
+
+#ifndef sun
+# include <sys/ioctl.h>
+#endif
+
+/* for solaris 2.1, Unixware (SVR4.2) and possibly others */
+#if defined (HAVE_SVR4_PTYS) && defined (HAVE_SYS_STROPTS_H)
+# include <sys/stropts.h>
+#endif
+
+#if defined(sun) && defined(LOCKPTY) && !defined(TIOCEXCL)
+# include <sys/ttold.h>
+#endif
+
+#ifdef ISC
+# include <sys/tty.h>
+# include <sys/sioctl.h>
+# include <sys/pty.h>
+#endif
+
+#ifdef sgi
+# include <sys/sysmacros.h>
+#endif /* sgi */
+
+#include "extern.h"
+
+/*
+ * if no PTYRANGE[01] is in the config file, we pick a default
+ */
+#ifndef PTYRANGE0
+# define PTYRANGE0 "qpr"
+#endif
+#ifndef PTYRANGE1
+# define PTYRANGE1 "0123456789abcdef"
+#endif
+
+/* SVR4 pseudo ttys don't seem to work with SCO-5 */
+#ifdef M_UNIX
+# undef HAVE_SVR4_PTYS
+#endif
+
+extern int eff_uid;
+
+/* used for opening a new pty-pair: */
+static char PtyName[32], TtyName[32];
+
+#if !(defined(sequent) || defined(_SEQUENT_) || defined(HAVE_SVR4_PTYS))
+# ifdef hpux
+static char PtyProto[] = "/dev/ptym/ptyXY";
+static char TtyProto[] = "/dev/pty/ttyXY";
+# else
+# ifdef M_UNIX
+static char PtyProto[] = "/dev/ptypXY";
+static char TtyProto[] = "/dev/ttypXY";
+# else
+static char PtyProto[] = "/dev/ptyXY";
+static char TtyProto[] = "/dev/ttyXY";
+# endif
+# endif /* hpux */
+#endif
+
+static void initmaster __P((int));
+
+#if defined(sun)
+/* sun's utmp_update program opens the salve side, thus corrupting
+ */
+int pty_preopen = 1;
+#else
+int pty_preopen = 0;
+#endif
+
+/*
+ * Open all ptys with O_NOCTTY, just to be on the safe side
+ * (RISCos mips breaks otherwise)
+ */
+#ifndef O_NOCTTY
+# define O_NOCTTY 0
+#endif
+
+/***************************************************************/
+
+static void
+initmaster(f)
+int f;
+{
+#ifdef POSIX
+ tcflush(f, TCIOFLUSH);
+#else
+# ifdef TIOCFLUSH
+ (void) ioctl(f, TIOCFLUSH, (char *) 0);
+# endif
+#endif
+#ifdef LOCKPTY
+ (void) ioctl(f, TIOCEXCL, (char *) 0);
+#endif
+}
+
+void
+InitPTY(f)
+int f;
+{
+ if (f < 0)
+ return;
+#if defined(I_PUSH) && defined(HAVE_SVR4_PTYS) && !defined(sgi) && !defined(linux) && !defined(__osf__) && !defined(M_UNIX)
+ if (ioctl(f, I_PUSH, "ptem"))
+ Panic(errno, "InitPTY: cannot I_PUSH ptem");
+ if (ioctl(f, I_PUSH, "ldterm"))
+ Panic(errno, "InitPTY: cannot I_PUSH ldterm");
+# ifdef sun
+ if (ioctl(f, I_PUSH, "ttcompat"))
+ Panic(errno, "InitPTY: cannot I_PUSH ttcompat");
+# endif
+#endif
+}
+
+/***************************************************************/
+
+#if defined(OSX) && !defined(PTY_DONE)
+#define PTY_DONE
+int
+OpenPTY(ttyn)
+char **ttyn;
+{
+ register int f;
+ if ((f = open_controlling_pty(TtyName)) < 0)
+ return -1;
+ initmaster(f);
+ *ttyn = TtyName;
+ return f;
+}
+#endif
+
+/***************************************************************/
+
+#if (defined(sequent) || defined(_SEQUENT_)) && !defined(PTY_DONE)
+#define PTY_DONE
+int
+OpenPTY(ttyn)
+char **ttyn;
+{
+ char *m, *s;
+ register int f;
+
+ if ((f = getpseudotty(&s, &m)) < 0)
+ return -1;
+#ifdef _SEQUENT_
+ fvhangup(s);
+#endif
+ strncpy(PtyName, m, sizeof(PtyName));
+ strncpy(TtyName, s, sizeof(TtyName));
+ initmaster(f);
+ *ttyn = TtyName;
+ return f;
+}
+#endif
+
+/***************************************************************/
+
+#if defined(__sgi) && !defined(PTY_DONE)
+#define PTY_DONE
+int
+OpenPTY(ttyn)
+char **ttyn;
+{
+ int f;
+ char *name, *_getpty();
+ sigret_t (*sigcld)__P(SIGPROTOARG);
+
+ /*
+ * SIGCHLD set to SIG_DFL for _getpty() because it may fork() and
+ * exec() /usr/adm/mkpts
+ */
+ sigcld = signal(SIGCHLD, SIG_DFL);
+ name = _getpty(&f, O_RDWR | O_NONBLOCK, 0600, 0);
+ signal(SIGCHLD, sigcld);
+
+ if (name == 0)
+ return -1;
+ initmaster(f);
+ *ttyn = name;
+ return f;
+}
+#endif
+
+/***************************************************************/
+
+#if defined(MIPS) && defined(HAVE_DEV_PTC) && !defined(PTY_DONE)
+#define PTY_DONE
+int
+OpenPTY(ttyn)
+char **ttyn;
+{
+ register int f;
+ struct stat buf;
+
+ strcpy(PtyName, "/dev/ptc");
+ if ((f = open(PtyName, O_RDWR | O_NOCTTY | O_NONBLOCK)) < 0)
+ return -1;
+ if (fstat(f, &buf) < 0)
+ {
+ close(f);
+ return -1;
+ }
+ sprintf(TtyName, "/dev/ttyq%d", minor(buf.st_rdev));
+ initmaster(f);
+ *ttyn = TtyName;
+ return f;
+}
+#endif
+
+/***************************************************************/
+
+#if defined(HAVE_SVR4_PTYS) && !defined(PTY_DONE)
+#define PTY_DONE
+int
+OpenPTY(ttyn)
+char **ttyn;
+{
+ register int f;
+ char *m, *ptsname();
+ int unlockpt __P((int)), grantpt __P((int));
+#if defined(HAVE_GETPT) && defined(linux)
+ int getpt __P((void));
+#endif
+ sigret_t (*sigcld)__P(SIGPROTOARG);
+
+ strcpy(PtyName, "/dev/ptmx");
+#if defined(HAVE_GETPT) && defined(linux)
+ if ((f = getpt()) == -1)
+#else
+ if ((f = open(PtyName, O_RDWR | O_NOCTTY)) == -1)
+#endif
+ return -1;
+
+ /*
+ * SIGCHLD set to SIG_DFL for grantpt() because it fork()s and
+ * exec()s pt_chmod
+ */
+ sigcld = signal(SIGCHLD, SIG_DFL);
+ if ((m = ptsname(f)) == NULL || grantpt(f) || unlockpt(f))
+ {
+ signal(SIGCHLD, sigcld);
+ close(f);
+ return -1;
+ }
+ signal(SIGCHLD, sigcld);
+ strncpy(TtyName, m, sizeof(TtyName));
+ initmaster(f);
+ *ttyn = TtyName;
+ return f;
+}
+#endif
+
+/***************************************************************/
+
+#if defined(_AIX) && defined(HAVE_DEV_PTC) && !defined(PTY_DONE)
+#define PTY_DONE
+
+int
+OpenPTY(ttyn)
+char **ttyn;
+{
+ register int f;
+
+ /* a dumb looking loop replaced by mycrofts code: */
+ strcpy (PtyName, "/dev/ptc");
+ if ((f = open (PtyName, O_RDWR | O_NOCTTY)) < 0)
+ return -1;
+ strncpy(TtyName, ttyname(f), sizeof(TtyName));
+ if (eff_uid && access(TtyName, R_OK | W_OK))
+ {
+ close(f);
+ return -1;
+ }
+ initmaster(f);
+# ifdef _IBMR2
+ pty_preopen = 1;
+# endif
+ *ttyn = TtyName;
+ return f;
+}
+#endif
+
+/***************************************************************/
+
+#if defined(HAVE_OPENPTY) && !defined(PTY_DONE)
+#define PTY_DONE
+int
+OpenPTY(ttyn)
+char **ttyn;
+{
+ int f, s;
+ if (openpty(&f, &s, TtyName, NULL, NULL) != 0)
+ return -1;
+ close(s);
+ initmaster(f);
+ pty_preopen = 1;
+ *ttyn = TtyName;
+ return f;
+}
+#endif
+
+/***************************************************************/
+
+#ifndef PTY_DONE
+int
+OpenPTY(ttyn)
+char **ttyn;
+{
+ register char *p, *q, *l, *d;
+ register int f;
+
+ debug("OpenPTY: Using BSD style ptys.\n");
+ strcpy(PtyName, PtyProto);
+ strcpy(TtyName, TtyProto);
+ for (p = PtyName; *p != 'X'; p++)
+ ;
+ for (q = TtyName; *q != 'X'; q++)
+ ;
+ for (l = PTYRANGE0; (*p = *l) != '\0'; l++)
+ {
+ for (d = PTYRANGE1; (p[1] = *d) != '\0'; d++)
+ {
+ debug1("OpenPTY tries '%s'\n", PtyName);
+ if ((f = open(PtyName, O_RDWR | O_NOCTTY)) == -1)
+ continue;
+ q[0] = *l;
+ q[1] = *d;
+ if (eff_uid && access(TtyName, R_OK | W_OK))
+ {
+ close(f);
+ continue;
+ }
+#if defined(sun) && defined(TIOCGPGRP) && !defined(SUNOS3)
+ /* Hack to ensure that the slave side of the pty is
+ * unused. May not work in anything other than SunOS4.1
+ */
+ {
+ int pgrp;
+
+ /* tcgetpgrp does not work (uses TIOCGETPGRP)! */
+ if (ioctl(f, TIOCGPGRP, (char *)&pgrp) != -1 || errno != EIO)
+ {
+ close(f);
+ continue;
+ }
+ }
+#endif
+ initmaster(f);
+ *ttyn = TtyName;
+ return f;
+ }
+ }
+ return -1;
+}
+#endif
diff --git a/examples/rlfe/rlfe.c b/examples/rlfe/rlfe.c
new file mode 100644
index 0000000..f40b2dd
--- /dev/null
+++ b/examples/rlfe/rlfe.c
@@ -0,0 +1,792 @@
+/* A front-end using readline to "cook" input lines.
+ *
+ * Copyright (C) 2004, 1999 Per Bothner
+ *
+ * This front-end program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as published
+ * by the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * Some code from Johnson & Troan: "Linux Application Development"
+ * (Addison-Wesley, 1998) was used directly or for inspiration.
+ *
+ * 2003-11-07 Wolfgang Taeuber <wolfgang_taeuber@agilent.com>
+ * Specify a history file and the size of the history file with command
+ * line options; use EDITOR/VISUAL to set vi/emacs preference.
+ */
+
+/* PROBLEMS/TODO:
+ *
+ * Only tested under GNU/Linux and Mac OS 10.x; needs to be ported.
+ *
+ * Switching between line-editing-mode vs raw-char-mode depending on
+ * what tcgetattr returns is inherently not robust, plus it doesn't
+ * work when ssh/telnetting in. A better solution is possible if the
+ * tty system can send in-line escape sequences indicating the current
+ * mode, echo'd input, etc. That would also allow a user preference
+ * to set different colors for prompt, input, stdout, and stderr.
+ *
+ * When running mc -c under the Linux console, mc does not recognize
+ * mouse clicks, which mc does when not running under rlfe.
+ *
+ * Pasting selected text containing tabs is like hitting the tab character,
+ * which invokes readline completion. We don't want this. I don't know
+ * if this is fixable without integrating rlfe into a terminal emulator.
+ *
+ * Echo suppression is a kludge, but can only be avoided with better kernel
+ * support: We need a tty mode to disable "real" echoing, while still
+ * letting the inferior think its tty driver to doing echoing.
+ * Stevens's book claims SCR$ and BSD4.3+ have TIOCREMOTE.
+ *
+ * The latest readline may have some hooks we can use to avoid having
+ * to back up the prompt. (See HAVE_ALREADY_PROMPTED.)
+ *
+ * Desirable readline feature: When in cooked no-echo mode (e.g. password),
+ * echo characters are they are types with '*', but remove them when done.
+ *
+ * Asynchronous output while we're editing an input line should be
+ * inserted in the output view *before* the input line, so that the
+ * lines being edited (with the prompt) float at the end of the input.
+ *
+ * A "page mode" option to emulate more/less behavior: At each page of
+ * output, pause for a user command. This required parsing the output
+ * to keep track of line lengths. It also requires remembering the
+ * output, if we want an option to scroll back, which suggests that
+ * this should be integrated with a terminal emulator like xterm.
+ */
+
+#include <stdio.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <signal.h>
+#include <netdb.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <grp.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include <termios.h>
+
+#include "config.h"
+#include "extern.h"
+
+#if defined (HAVE_SYS_WAIT_H)
+# include <sys/wait.h>
+#endif
+
+#ifdef READLINE_LIBRARY
+# include "readline.h"
+# include "history.h"
+#else
+# include <readline/readline.h>
+# include <readline/history.h>
+#endif
+
+#ifndef COMMAND
+#define COMMAND "/bin/bash"
+#endif
+#ifndef COMMAND_ARGS
+#define COMMAND_ARGS COMMAND
+#endif
+
+#ifndef ALT_COMMAND
+#define ALT_COMMAND "/bin/sh"
+#endif
+#ifndef ALT_COMMAND_ARGS
+#define ALT_COMMAND_ARGS ALT_COMMAND
+#endif
+
+#ifndef HAVE_MEMMOVE
+# if __GNUC__ > 1
+# define memmove(d, s, n) __builtin_memcpy(d, s, n)
+# else
+# define memmove(d, s, n) memcpy(d, s, n)
+# endif
+#else
+# define memmove(d, s, n) memcpy(d, s, n)
+#endif
+
+#define APPLICATION_NAME "rlfe"
+
+static int in_from_inferior_fd;
+static int out_to_inferior_fd;
+static void set_edit_mode ();
+static void usage_exit ();
+static char *hist_file = 0;
+static int hist_size = 0;
+
+/* Unfortunately, we cannot safely display echo from the inferior process.
+ The reason is that the echo bit in the pty is "owned" by the inferior,
+ and if we try to turn it off, we could confuse the inferior.
+ Thus, when echoing, we get echo twice: First readline echoes while
+ we're actually editing. Then we send the line to the inferior, and the
+ terminal driver send back an extra echo.
+ The work-around is to remember the input lines, and when we see that
+ line come back, we supress the output.
+ A better solution (supposedly available on SVR4) would be a smarter
+ terminal driver, with more flags ... */
+#define ECHO_SUPPRESS_MAX 1024
+char echo_suppress_buffer[ECHO_SUPPRESS_MAX];
+int echo_suppress_start = 0;
+int echo_suppress_limit = 0;
+
+/*#define DEBUG*/
+
+#ifdef DEBUG
+FILE *logfile = NULL;
+#define DPRINT0(FMT) (fprintf(logfile, FMT), fflush(logfile))
+#define DPRINT1(FMT, V1) (fprintf(logfile, FMT, V1), fflush(logfile))
+#define DPRINT2(FMT, V1, V2) (fprintf(logfile, FMT, V1, V2), fflush(logfile))
+#else
+#define DPRINT0(FMT) ((void) 0) /* Do nothing */
+#define DPRINT1(FMT, V1) ((void) 0) /* Do nothing */
+#define DPRINT2(FMT, V1, V2) ((void) 0) /* Do nothing */
+#endif
+
+struct termios orig_term;
+
+/* Pid of child process. */
+static pid_t child = -1;
+
+static void
+sig_child (int signo)
+{
+ int status;
+ wait (&status);
+ if (hist_file != 0)
+ {
+ write_history (hist_file);
+ if (hist_size)
+ history_truncate_file (hist_file, hist_size);
+ }
+ DPRINT0 ("(Child process died.)\n");
+ tcsetattr(STDIN_FILENO, TCSANOW, &orig_term);
+ exit (0);
+}
+
+volatile int propagate_sigwinch = 0;
+
+/* sigwinch_handler
+ * propagate window size changes from input file descriptor to
+ * master side of pty.
+ */
+void sigwinch_handler(int signal) {
+ propagate_sigwinch = 1;
+}
+
+
+/* get_slave_pty() returns an integer file descriptor.
+ * If it returns < 0, an error has occurred.
+ * Otherwise, it has returned the slave file descriptor.
+ */
+
+int get_slave_pty(char *name) {
+ struct group *gptr;
+ gid_t gid;
+ int slave = -1;
+
+ /* chown/chmod the corresponding pty, if possible.
+ * This will only work if the process has root permissions.
+ * Alternatively, write and exec a small setuid program that
+ * does just this.
+ */
+ if ((gptr = getgrnam("tty")) != 0) {
+ gid = gptr->gr_gid;
+ } else {
+ /* if the tty group does not exist, don't change the
+ * group on the slave pty, only the owner
+ */
+ gid = -1;
+ }
+
+ /* Note that we do not check for errors here. If this is code
+ * where these actions are critical, check for errors!
+ */
+ chown(name, getuid(), gid);
+ /* This code only makes the slave read/writeable for the user.
+ * If this is for an interactive shell that will want to
+ * receive "write" and "wall" messages, OR S_IWGRP into the
+ * second argument below.
+ */
+ chmod(name, S_IRUSR|S_IWUSR);
+
+ /* open the corresponding slave pty */
+ slave = open(name, O_RDWR);
+ return (slave);
+}
+
+/* Certain special characters, such as ctrl/C, we want to pass directly
+ to the inferior, rather than letting readline handle them. */
+
+static char special_chars[20];
+static int special_chars_count;
+
+static void
+add_special_char(int ch)
+{
+ if (ch != 0)
+ special_chars[special_chars_count++] = ch;
+}
+
+static int eof_char;
+
+static int
+is_special_char(int ch)
+{
+ int i;
+#if 0
+ if (ch == eof_char && rl_point == rl_end)
+ return 1;
+#endif
+ for (i = special_chars_count; --i >= 0; )
+ if (special_chars[i] == ch)
+ return 1;
+ return 0;
+}
+
+static char buf[1024];
+/* buf[0 .. buf_count-1] is the what has been emitted on the current line.
+ It is used as the readline prompt. */
+static int buf_count = 0;
+
+int do_emphasize_input = 1;
+int current_emphasize_input;
+
+char *start_input_mode = "\033[1m";
+char *end_input_mode = "\033[0m";
+
+int num_keys = 0;
+
+static void maybe_emphasize_input (int on)
+{
+ if (on == current_emphasize_input
+ || (on && ! do_emphasize_input))
+ return;
+ fprintf (rl_outstream, on ? start_input_mode : end_input_mode);
+ fflush (rl_outstream);
+ current_emphasize_input = on;
+}
+
+static void
+null_prep_terminal (int meta)
+{
+}
+
+static void
+null_deprep_terminal ()
+{
+ maybe_emphasize_input (0);
+}
+
+static int
+pre_input_change_mode (void)
+{
+ return 0;
+}
+
+char pending_special_char;
+
+static void
+line_handler (char *line)
+{
+ if (line == NULL)
+ {
+ char buf[1];
+ DPRINT0("saw eof!\n");
+ buf[0] = '\004'; /* ctrl/d */
+ write (out_to_inferior_fd, buf, 1);
+ }
+ else
+ {
+ static char enter[] = "\r";
+ /* Send line to inferior: */
+ int length = strlen (line);
+ if (length > ECHO_SUPPRESS_MAX-2)
+ {
+ echo_suppress_start = 0;
+ echo_suppress_limit = 0;
+ }
+ else
+ {
+ if (echo_suppress_limit + length > ECHO_SUPPRESS_MAX - 2)
+ {
+ if (echo_suppress_limit - echo_suppress_start + length
+ <= ECHO_SUPPRESS_MAX - 2)
+ {
+ memmove (echo_suppress_buffer,
+ echo_suppress_buffer + echo_suppress_start,
+ echo_suppress_limit - echo_suppress_start);
+ echo_suppress_limit -= echo_suppress_start;
+ echo_suppress_start = 0;
+ }
+ else
+ {
+ echo_suppress_limit = 0;
+ }
+ echo_suppress_start = 0;
+ }
+ memcpy (echo_suppress_buffer + echo_suppress_limit,
+ line, length);
+ echo_suppress_limit += length;
+ echo_suppress_buffer[echo_suppress_limit++] = '\r';
+ echo_suppress_buffer[echo_suppress_limit++] = '\n';
+ }
+ write (out_to_inferior_fd, line, length);
+ if (pending_special_char == 0)
+ {
+ write (out_to_inferior_fd, enter, sizeof(enter)-1);
+ if (*line)
+ add_history (line);
+ }
+ free (line);
+ }
+ rl_callback_handler_remove ();
+ buf_count = 0;
+ num_keys = 0;
+ if (pending_special_char != 0)
+ {
+ write (out_to_inferior_fd, &pending_special_char, 1);
+ pending_special_char = 0;
+ }
+}
+
+/* Value of rl_getc_function.
+ Use this because readline should read from stdin, not rl_instream,
+ points to the pty (so readline has monitor its terminal modes). */
+
+int
+my_rl_getc (FILE *dummy)
+{
+ int ch = rl_getc (stdin);
+ if (is_special_char (ch))
+ {
+ pending_special_char = ch;
+ return '\r';
+ }
+ return ch;
+}
+
+int
+main(int argc, char** argv)
+{
+ char *path;
+ int i;
+ int master;
+ char *name;
+ int in_from_tty_fd;
+ struct sigaction act;
+ struct winsize ws;
+ struct termios t;
+ int maxfd;
+ fd_set in_set;
+ static char empty_string[1] = "";
+ char *prompt = empty_string;
+ int ioctl_err = 0;
+ int arg_base = 1;
+
+#ifdef DEBUG
+ logfile = fopen("/tmp/rlfe.log", "w");
+#endif
+
+ while (arg_base<argc)
+ {
+ if (argv[arg_base][0] != '-')
+ break;
+ if (arg_base+1 >= argc )
+ usage_exit();
+ switch(argv[arg_base][1])
+ {
+ case 'h':
+ arg_base++;
+ hist_file = argv[arg_base];
+ break;
+ case 's':
+ arg_base++;
+ hist_size = atoi(argv[arg_base]);
+ if (hist_size<0)
+ usage_exit();
+ break;
+ default:
+ usage_exit();
+ }
+ arg_base++;
+ }
+ if (hist_file)
+ read_history (hist_file);
+
+ set_edit_mode ();
+
+ rl_readline_name = APPLICATION_NAME;
+
+ if ((master = OpenPTY (&name)) < 0)
+ {
+ perror("ptypair: could not open master pty");
+ exit(1);
+ }
+
+ DPRINT1("pty name: '%s'\n", name);
+
+ /* set up SIGWINCH handler */
+ act.sa_handler = sigwinch_handler;
+ sigemptyset(&(act.sa_mask));
+ act.sa_flags = 0;
+ if (sigaction(SIGWINCH, &act, NULL) < 0)
+ {
+ perror("ptypair: could not handle SIGWINCH ");
+ exit(1);
+ }
+
+ if (ioctl(STDIN_FILENO, TIOCGWINSZ, &ws) < 0)
+ {
+ perror("ptypair: could not get window size");
+ exit(1);
+ }
+
+ if ((child = fork()) < 0)
+ {
+ perror("cannot fork");
+ exit(1);
+ }
+
+ if (child == 0)
+ {
+ int slave; /* file descriptor for slave pty */
+
+ /* We are in the child process */
+ close(master);
+
+#ifdef TIOCSCTTY
+ if ((slave = get_slave_pty(name)) < 0)
+ {
+ perror("ptypair: could not open slave pty");
+ exit(1);
+ }
+#endif
+
+ /* We need to make this process a session group leader, because
+ * it is on a new PTY, and things like job control simply will
+ * not work correctly unless there is a session group leader
+ * and process group leader (which a session group leader
+ * automatically is). This also disassociates us from our old
+ * controlling tty.
+ */
+ if (setsid() < 0)
+ {
+ perror("could not set session leader");
+ }
+
+ /* Tie us to our new controlling tty. */
+#ifdef TIOCSCTTY
+ if (ioctl(slave, TIOCSCTTY, NULL))
+ {
+ perror("could not set new controlling tty");
+ }
+#else
+ if ((slave = get_slave_pty(name)) < 0)
+ {
+ perror("ptypair: could not open slave pty");
+ exit(1);
+ }
+#endif
+
+ /* make slave pty be standard in, out, and error */
+ dup2(slave, STDIN_FILENO);
+ dup2(slave, STDOUT_FILENO);
+ dup2(slave, STDERR_FILENO);
+
+ /* at this point the slave pty should be standard input */
+ if (slave > 2)
+ {
+ close(slave);
+ }
+
+ /* Try to restore window size; failure isn't critical */
+ if (ioctl(STDOUT_FILENO, TIOCSWINSZ, &ws) < 0)
+ {
+ perror("could not restore window size");
+ }
+
+ /* now start the shell */
+ {
+ static char* command_args[] = { COMMAND_ARGS, NULL };
+ static char* alt_command_args[] = { ALT_COMMAND_ARGS, NULL };
+ if (argc <= 1)
+ {
+ execvp (COMMAND, command_args);
+ execvp (ALT_COMMAND, alt_command_args);
+ }
+ else
+ execvp (argv[arg_base], &argv[arg_base]);
+ }
+
+ /* should never be reached */
+ exit(1);
+ }
+
+ /* parent */
+ signal (SIGCHLD, sig_child);
+
+ /* Note that we only set termios settings for standard input;
+ * the master side of a pty is NOT a tty.
+ */
+ tcgetattr(STDIN_FILENO, &orig_term);
+
+ t = orig_term;
+ eof_char = t.c_cc[VEOF];
+ /* add_special_char(t.c_cc[VEOF]);*/
+ add_special_char(t.c_cc[VINTR]);
+ add_special_char(t.c_cc[VQUIT]);
+ add_special_char(t.c_cc[VSUSP]);
+#if defined (VDISCARD)
+ add_special_char(t.c_cc[VDISCARD]);
+#endif
+
+ t.c_lflag &= ~(ICANON | ISIG | ECHO | ECHOCTL | ECHOE | \
+ ECHOK | ECHONL
+#if defined (ECHOKE)
+ | ECHOKE
+#endif
+#if defined (ECHOPRT)
+ | ECHOPRT
+#endif
+ );
+ t.c_iflag &= ~ICRNL;
+ t.c_iflag |= IGNBRK;
+ t.c_cc[VMIN] = 1;
+ t.c_cc[VTIME] = 0;
+ tcsetattr(STDIN_FILENO, TCSANOW, &t);
+ in_from_inferior_fd = master;
+ out_to_inferior_fd = master;
+ rl_instream = fdopen (master, "r");
+ rl_getc_function = my_rl_getc;
+
+ rl_prep_term_function = null_prep_terminal;
+ rl_deprep_term_function = null_deprep_terminal;
+ rl_pre_input_hook = pre_input_change_mode;
+ rl_callback_handler_install (prompt, line_handler);
+
+ in_from_tty_fd = STDIN_FILENO;
+ FD_ZERO (&in_set);
+ maxfd = in_from_inferior_fd > in_from_tty_fd ? in_from_inferior_fd
+ : in_from_tty_fd;
+ for (;;)
+ {
+ int num;
+ FD_SET (in_from_inferior_fd, &in_set);
+ FD_SET (in_from_tty_fd, &in_set);
+
+ num = select(maxfd+1, &in_set, NULL, NULL, NULL);
+
+ if (propagate_sigwinch)
+ {
+ struct winsize ws;
+ if (ioctl (STDIN_FILENO, TIOCGWINSZ, &ws) >= 0)
+ {
+ ioctl (master, TIOCSWINSZ, &ws);
+ }
+ propagate_sigwinch = 0;
+ continue;
+ }
+
+ if (num <= 0)
+ {
+ perror ("select");
+ exit (-1);
+ }
+ if (FD_ISSET (in_from_tty_fd, &in_set))
+ {
+ extern int _rl_echoing_p;
+ struct termios term_master;
+ int do_canon = 1;
+ int do_icrnl = 1;
+ int ioctl_ret;
+
+ DPRINT1("[tty avail num_keys:%d]\n", num_keys);
+
+ /* If we can't get tty modes for the master side of the pty, we
+ can't handle non-canonical-mode programs. Always assume the
+ master is in canonical echo mode if we can't tell. */
+ ioctl_ret = tcgetattr(master, &term_master);
+
+ if (ioctl_ret >= 0)
+ {
+ do_canon = (term_master.c_lflag & ICANON) != 0;
+ do_icrnl = (term_master.c_lflag & ICRNL) != 0;
+ _rl_echoing_p = (term_master.c_lflag & ECHO) != 0;
+ DPRINT1 ("echo,canon,crnl:%03d\n",
+ 100 * _rl_echoing_p
+ + 10 * do_canon
+ + 1 * do_icrnl);
+ }
+ else
+ {
+ if (ioctl_err == 0)
+ DPRINT1("tcgetattr on master fd failed: errno = %d\n", errno);
+ ioctl_err = 1;
+ }
+
+ if (do_canon == 0 && num_keys == 0)
+ {
+ char ch[10];
+ int count = read (STDIN_FILENO, ch, sizeof(ch));
+ DPRINT1("[read %d chars from stdin: ", count);
+ DPRINT2(" \"%.*s\"]\n", count, ch);
+ if (do_icrnl)
+ {
+ int i = count;
+ while (--i >= 0)
+ {
+ if (ch[i] == '\r')
+ ch[i] = '\n';
+ }
+ }
+ maybe_emphasize_input (1);
+ write (out_to_inferior_fd, ch, count);
+ }
+ else
+ {
+ if (num_keys == 0)
+ {
+ int i;
+ /* Re-install callback handler for new prompt. */
+ if (prompt != empty_string)
+ free (prompt);
+ if (prompt == NULL)
+ {
+ DPRINT0("New empty prompt\n");
+ prompt = empty_string;
+ }
+ else
+ {
+ if (do_emphasize_input && buf_count > 0)
+ {
+ prompt = malloc (buf_count + strlen (end_input_mode)
+ + strlen (start_input_mode) + 5);
+ sprintf (prompt, "\001%s\002%.*s\001%s\002",
+ end_input_mode,
+ buf_count, buf,
+ start_input_mode);
+ }
+ else
+ {
+ prompt = malloc (buf_count + 1);
+ memcpy (prompt, buf, buf_count);
+ prompt[buf_count] = '\0';
+ }
+ DPRINT1("New prompt '%s'\n", prompt);
+#if 0 /* ifdef HAVE_RL_ALREADY_PROMPTED */
+ /* Doesn't quite work when do_emphasize_input is 1. */
+ rl_already_prompted = buf_count > 0;
+#else
+ if (buf_count > 0)
+ write (1, "\r", 1);
+#endif
+ }
+
+ rl_callback_handler_install (prompt, line_handler);
+ }
+ num_keys++;
+ maybe_emphasize_input (1);
+ rl_callback_read_char ();
+ }
+ }
+ else /* output from inferior. */
+ {
+ int i;
+ int count;
+ int old_count;
+ if (buf_count > (sizeof(buf) >> 2))
+ buf_count = 0;
+ count = read (in_from_inferior_fd, buf+buf_count,
+ sizeof(buf) - buf_count);
+ DPRINT2("read %d from inferior, buf_count=%d", count, buf_count);
+ DPRINT2(": \"%.*s\"", count, buf+buf_count);
+ maybe_emphasize_input (0);
+ if (count <= 0)
+ {
+ DPRINT0 ("(Connection closed by foreign host.)\n");
+ tcsetattr(STDIN_FILENO, TCSANOW, &orig_term);
+ exit (0);
+ }
+ old_count = buf_count;
+
+ /* Look for any pending echo that we need to suppress. */
+ while (echo_suppress_start < echo_suppress_limit
+ && count > 0
+ && buf[buf_count] == echo_suppress_buffer[echo_suppress_start])
+ {
+ count--;
+ buf_count++;
+ echo_suppress_start++;
+ }
+ DPRINT1("suppressed %d characters of echo.\n", buf_count-old_count);
+
+ /* Write to the terminal anything that was not suppressed. */
+ if (count > 0)
+ write (1, buf + buf_count, count);
+
+ /* Finally, look for a prompt candidate.
+ * When we get around to going input (from the keyboard),
+ * we will consider the prompt to be anything since the last
+ * line terminator. So we need to save that text in the
+ * initial part of buf. However, anything before the
+ * most recent end-of-line is not interesting. */
+ buf_count += count;
+#if 1
+ for (i = buf_count; --i >= old_count; )
+#else
+ for (i = buf_count - 1; i-- >= buf_count - count; )
+#endif
+ {
+ if (buf[i] == '\n' || buf[i] == '\r')
+ {
+ i++;
+ memmove (buf, buf+i, buf_count - i);
+ buf_count -= i;
+ break;
+ }
+ }
+ DPRINT2("-> i: %d, buf_count: %d\n", i, buf_count);
+ }
+ }
+}
+
+static void set_edit_mode ()
+{
+ int vi = 0;
+ char *shellopts;
+
+ shellopts = getenv ("SHELLOPTS");
+ while (shellopts != 0)
+ {
+ if (strncmp ("vi", shellopts, 2) == 0)
+ {
+ vi = 1;
+ break;
+ }
+ shellopts = strchr (shellopts + 1, ':');
+ }
+
+ if (!vi)
+ {
+ if (getenv ("EDITOR") != 0)
+ vi |= strcmp (getenv ("EDITOR"), "vi") == 0;
+ }
+
+ if (vi)
+ rl_variable_bind ("editing-mode", "vi");
+ else
+ rl_variable_bind ("editing-mode", "emacs");
+}
+
+
+static void usage_exit ()
+{
+ fprintf (stderr, "Usage: rlfe [-h histfile] [-s size] cmd [arg1] [arg2] ...\n\n");
+ exit (1);
+}
diff --git a/examples/rlfe/screen.h b/examples/rlfe/screen.h
new file mode 100644
index 0000000..5b040c3
--- /dev/null
+++ b/examples/rlfe/screen.h
@@ -0,0 +1,2 @@
+/* Dummy header to avoid modifying pty.c */
+#include "os.h"