154 lines
4.4 KiB
Plaintext
154 lines
4.4 KiB
Plaintext
# Process this file with autoconf to produce a configure script.
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# Copyright (C) 1995, 1997, 1998, 1999 Free Software Foundation, Inc.
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# Contributed by Dave Love (d.love@dl.ac.uk).
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#
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#This file is part of GNU CC.
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#
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#GNU CHILL is free software; you can redistribute it and/or modify
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#it under the terms of the GNU General Public License as published by
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#the Free Software Foundation; either version 2, or (at your option)
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#any later version.
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#
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#GNU CHILL is distributed in the hope that it will be useful,
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#but WITHOUT ANY WARRANTY; without even the implied warranty of
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#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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#GNU General Public License for more details.
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#
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#You should have received a copy of the GNU General Public License
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#along with GNU CHILL; see the file COPYING. If not, write to
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#the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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#02111-1307, USA.
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AC_PREREQ(2.13)
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AC_INIT(chillrt0.c)
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if test "${srcdir}" = "." ; then
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if test "${with_target_subdir}" != "." ; then
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topsrcdir=${with_multisrctop}../..
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else
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topsrcdir=${with_multisrctop}..
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fi
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else
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topsrcdir=${srcdir}/..
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fi
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dnl This is needed for a multilibbed build in the source tree so
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dnl that install-sh and config.sub get found.
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AC_CONFIG_AUX_DIR($topsrcdir)
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# If the language specific compiler does not exist, but the "gcc" directory
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# does, we do not build anything. Note, $r is set by the top-level Makefile.
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# Note that when we look for the compiler, we search both with and without
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# extension to handle cross and canadian cross builds.
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compiler_name=cc1chill
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rm -f skip-this-dir
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AC_MSG_CHECKING(if compiler $compiler_name has been built)
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AC_CACHE_VAL(chill_cv_compiler_exists,
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[chill_cv_compiler_exists=yes
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if test -n "$r"; then
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if test -d "$r"/gcc; then
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if test -f "$r"/gcc/$compiler_name \
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|| test -f "$r"/gcc/$compiler_name.exe; then
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true
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else
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chill_cv_compiler_exists=no
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echo "rm -f config.cache config.log multilib.out" > skip-this-dir
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fi
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fi
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fi
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])
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AC_MSG_RESULT($chill_cv_compiler_exists)
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if test x$chill_cv_compiler_exists = xno
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then
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rm -f Makefile conftest* confdefs* core
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exit 0
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fi
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dnl Checks for programs.
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# For chill we'll set CC to point at the built gcc, but this will get it into
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# the makefiles
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AC_PROG_CC
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test "$AR" || AR=ar
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AC_SUBST(AR)
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AC_PROG_MAKE_SET
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dnl Checks for libraries.
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dnl Checks for header files.
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# Sanity check for the cross-compilation case:
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AC_CHECK_HEADER(stdio.h,:,
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[AC_MSG_ERROR([Can't find stdio.h.
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You must have a usable C system for the target already installed, at least
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including headers and, preferably, the library, before you can configure
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the Chill runtime system. If necessary, install gcc now with \`LANGUAGES=c',
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then the target library, then build with \`LANGUAGES=chill'.])])
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AC_HEADER_STDC
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AC_MSG_CHECKING(for posix)
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AC_CACHE_VAL(chill_cv_header_posix,
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AC_EGREP_CPP(yes,
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[#include <sys/types.h>
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#include <unistd.h>
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#ifdef _POSIX_VERSION
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yes
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#endif
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],
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chill_cv_header_posix=yes,
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chill_cv_header_posix=no))
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AC_MSG_RESULT($chill_cv_header_posix)
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# We can rely on the GNU library being posix-ish. I guess checking the
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# header isn't actually like checking the functions, though...
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AC_MSG_CHECKING(for GNU library)
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AC_CACHE_VAL(chill_cv_lib_gnu,
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AC_EGREP_CPP(yes,
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[#include <stdio.h>
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#ifdef __GNU_LIBRARY__
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yes
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#endif
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],
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chill_cv_lib_gnu=yes, chill_cv_lib_gnu=no))
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AC_MSG_RESULT($chill_cv_lib_gnu)
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dnl Checks for library functions.
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AC_TYPE_SIGNAL
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# we'll get atexit by default
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if test $ac_cv_header_stdc != yes; then
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AC_CHECK_FUNC(atexit,
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AC_DEFINE(onexit,atexit),dnl just in case
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[AC_DEFINE(NO_ONEXIT)
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AC_CHECK_FUNC(onexit,,
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[AC_CHECK_FUNC(on_exit,
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AC_DEFINE(onexit,on_exit),)])])
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else true
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fi
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# We need multilib support, but only if configuring for the target.
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AC_OUTPUT(Makefile,
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[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
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if test -n "$CONFIG_FILES"; then
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if test -n "${with_target_subdir}"; then
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# FIXME: We shouldn't need to set ac_file
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ac_file=Makefile
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. ${topsrcdir}/config-ml.in
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fi
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fi],
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srcdir=${srcdir}
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host=${host}
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target=${target}
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with_target_subdir=${with_target_subdir}
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with_multisubdir=${with_multisubdir}
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ac_configure_args="--enable-multilib ${ac_configure_args}"
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CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
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topsrcdir=${topsrcdir}
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)
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dnl Local Variables:
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dnl comment-start: "dnl "
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dnl comment-end: ""
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dnl comment-start-skip: "\\bdnl\\b\\s *"
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dnl End:
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