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
25 if test "${srcdir}" = "." ; then
26 if test "${with_target_subdir}" != "." ; then
27 topsrcdir=${with_multisrctop}../..
29 topsrcdir=${with_multisrctop}..
32 topsrcdir=${srcdir}/..
34 dnl This is needed for a multilibbed build in the source tree so
35 dnl that install-sh and config.sub get found.
36 AC_CONFIG_AUX_DIR($topsrcdir)
38 # If the language specific compiler does not exist, but the "gcc" directory does,
39 # we do not build anything. Note, $r is set by the top-level Makefile.
40 compiler_name=cc1chill
42 AC_MSG_CHECKING(if compiler $compiler_name has been built)
43 AC_CACHE_VAL(chill_cv_compiler_exists,
44 [chill_cv_compiler_exists=yes
46 if test -d "$r"/gcc; then
47 if test -f "$r"/gcc/$compiler_name; then
50 chill_cv_compiler_exists=no
51 echo "rm -f config.cache config.log multilib.out" > skip-this-dir
56 AC_MSG_RESULT($chill_cv_compiler_exists)
57 if test x$chill_cv_compiler_exists = xno
59 rm -f Makefile conftest* confdefs* core
63 dnl Checks for programs.
64 # For chill we'll set CC to point at the built gcc, but this will get it into
72 dnl Checks for libraries.
74 dnl Checks for header files.
75 # Sanity check for the cross-compilation case:
76 AC_CHECK_HEADER(stdio.h,:,
77 [AC_MSG_ERROR([Can't find stdio.h.
78 You must have a usable C system for the target already installed, at least
79 including headers and, preferably, the library, before you can configure
80 the Chill runtime system. If necessary, install gcc now with \`LANGUAGES=c',
81 then the target library, then build with \`LANGUAGES=chill'.])])
85 AC_MSG_CHECKING(for posix)
86 AC_CACHE_VAL(chill_cv_header_posix,
88 [#include <sys/types.h>
94 chill_cv_header_posix=yes,
95 chill_cv_header_posix=no))
96 AC_MSG_RESULT($chill_cv_header_posix)
98 # We can rely on the GNU library being posix-ish. I guess checking the
99 # header isn't actually like checking the functions, though...
100 AC_MSG_CHECKING(for GNU library)
101 AC_CACHE_VAL(chill_cv_lib_gnu,
104 #ifdef __GNU_LIBRARY__
108 chill_cv_lib_gnu=yes, chill_cv_lib_gnu=no))
109 AC_MSG_RESULT($chill_cv_lib_gnu)
111 dnl Checks for library functions.
113 # we'll get atexit by default
114 if test $ac_cv_header_stdc != yes; then
115 AC_CHECK_FUNC(atexit,
116 AC_DEFINE(onexit,atexit),dnl just in case
117 [AC_DEFINE(NO_ONEXIT)
118 AC_CHECK_FUNC(onexit,,
119 [AC_CHECK_FUNC(on_exit,
120 AC_DEFINE(onexit,on_exit),)])])
124 # We need multilib support, but only if configuring for the target.
126 [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
127 if test -n "$CONFIG_FILES"; then
128 if test -n "${with_target_subdir}"; then
129 # FIXME: We shouldn't need to set ac_file
131 . ${topsrcdir}/config-ml.in
137 with_target_subdir=${with_target_subdir}
138 with_multisubdir=${with_multisubdir}
139 ac_configure_args="--enable-multilib ${ac_configure_args}"
140 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
141 topsrcdir=${topsrcdir}
147 dnl comment-start: "dnl "
149 dnl comment-start-skip: "\\bdnl\\b\\s *"