1 # Process this file with autoconf to produce a configure script.
2 # Copyright (C) 1995, 1997, 1998 Free Software Foundation, Inc.
3 # Contributed by Dave Love (d.love@dl.ac.uk).
5 #This file is part of GNU CC.
7 #GNU CHILL is free software; you can redistribute it and/or modify
8 #it under the terms of the GNU General Public License as published by
9 #the Free Software Foundation; either version 2, or (at your option)
12 #GNU CHILL is distributed in the hope that it will be useful,
13 #but WITHOUT ANY WARRANTY; without even the implied warranty of
14 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 #GNU General Public License for more details.
17 #You should have received a copy of the GNU General Public License
18 #along with GNU CHILL; see the file COPYING. If not, write to
19 #the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 if test "${srcdir}" = "." ; then
25 if test "${with_target_subdir}" != "." ; then
26 topsrcdir=${with_multisrctop}../..
28 topsrcdir=${with_multisrctop}..
31 topsrcdir=${srcdir}/..
33 dnl This is needed for a multilibbed build in the source tree so
34 dnl that install-sh and config.sub get found.
35 AC_CONFIG_AUX_DIR($topsrcdir)
37 dnl Checks for programs.
38 # For chill we'll set CC to point at the built gcc, but this will get it into
46 dnl Checks for libraries.
48 dnl Checks for header files.
49 # Sanity check for the cross-compilation case:
50 AC_CHECK_HEADER(stdio.h,:,
51 [AC_MSG_ERROR([Can't find stdio.h.
52 You must have a usable C system for the target already installed, at least
53 including headers and, preferably, the library, before you can configure
54 the Chill runtime system. If necessary, install gcc now with \`LANGUAGES=c',
55 then the target library, then build with \`LANGUAGES=chill'.])])
59 AC_MSG_CHECKING(for posix)
60 AC_CACHE_VAL(chill_cv_header_posix,
62 [#include <sys/types.h>
68 chill_cv_header_posix=yes,
69 chill_cv_header_posix=no))
70 AC_MSG_RESULT($chill_cv_header_posix)
72 # We can rely on the GNU library being posix-ish. I guess checking the
73 # header isn't actually like checking the functions, though...
74 AC_MSG_CHECKING(for GNU library)
75 AC_CACHE_VAL(chill_cv_lib_gnu,
78 #ifdef __GNU_LIBRARY__
82 chill_cv_lib_gnu=yes, chill_cv_lib_gnu=no))
83 AC_MSG_RESULT($chill_cv_lib_gnu)
85 dnl Checks for library functions.
87 # we'll get atexit by default
88 if test $ac_cv_header_stdc != yes; then
90 AC_DEFINE(onexit,atexit),dnl just in case
92 AC_CHECK_FUNC(onexit,,
93 [AC_CHECK_FUNC(on_exit,
94 AC_DEFINE(onexit,on_exit),)])])
98 # We need multilib support, but only if configuring for the target.
100 [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
101 if test -n "$CONFIG_FILES"; then
102 if test -n "${with_target_subdir}"; then
103 # FIXME: We shouldn't need to set ac_file
105 . ${topsrcdir}/config-ml.in
111 with_target_subdir=${with_target_subdir}
112 with_multisubdir=${with_multisubdir}
113 ac_configure_args="--enable-multilib ${ac_configure_args}"
114 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
115 topsrcdir=${topsrcdir}
121 dnl comment-start: "dnl "
123 dnl comment-start-skip: "\\bdnl\\b\\s *"