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Diffstat (limited to 'libchill/configure.in')
| -rw-r--r-- | libchill/configure.in | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/libchill/configure.in b/libchill/configure.in new file mode 100644 index 00000000000..e4d2cb592e4 --- /dev/null +++ b/libchill/configure.in @@ -0,0 +1,121 @@ +# Process this file with autoconf to produce a configure script. +# Copyright (C) 1995, 1997, 1998 Free Software Foundation, Inc. +# Contributed by Dave Love (d.love@dl.ac.uk). +# +#This file is part of GNU CC. +# +#GNU Fortran 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. +# +#GNU Fortran 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 GNU Fortran; see the file COPYING. If not, write to +#the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA +#02111-1307, USA. + +AC_INIT(chillrt0.c) + +if [ "${srcdir}" = "." ] ; then + if [ "${with_target_subdir}" != "." ] ; then + topsrcdir=${with_multisrctop}../.. + else + topsrcdir=${with_multisrctop}.. + fi +else + topsrcdir=${srcdir}/.. +fi + +dnl Checks for programs. +# For chill we'll set CC to point at the built gcc, but this will get it into +# the makefiles +AC_PROG_CC + +test "$AR" || AR=ar +AC_SUBST(AR) +AC_PROG_MAKE_SET + +dnl Checks for libraries. + +dnl Checks for header files. +# Sanity check for the cross-compilation case: +AC_CHECK_HEADER(stdio.h,:, + [AC_MSG_ERROR([Can't find stdio.h. +You must have a usable C system for the target already installed, at least +including headers and, preferably, the library, before you can configure +the Chill runtime system. If necessary, install gcc now with \`LANGUAGES=c', +then the target library, then build with \`LANGUAGES=chill'.])]) + +AC_HEADER_STDC + +AC_MSG_CHECKING(for posix) +AC_CACHE_VAL(chill_cv_header_posix, + AC_EGREP_CPP(yes, + [#include <sys/types.h> +#include <unistd.h> +#ifdef _POSIX_VERSION + yes +#endif +], + chill_cv_header_posix=yes, + chill_cv_header_posix=no)) +AC_MSG_RESULT($chill_cv_header_posix) + +# We can rely on the GNU library being posix-ish. I guess checking the +# header isn't actually like checking the functions, though... +AC_MSG_CHECKING(for GNU library) +AC_CACHE_VAL(chill_cv_lib_gnu, + AC_EGREP_CPP(yes, + [#include <stdio.h> +#ifdef __GNU_LIBRARY__ + yes +#endif +], + chill_cv_lib_gnu=yes, chill_cv_lib_gnu=no)) +AC_MSG_RESULT($chill_cv_lib_gnu) + +dnl Checks for library functions. +AC_TYPE_SIGNAL +# we'll get atexit by default +if test $ac_cv_header_stdc != yes; then +AC_CHECK_FUNC(atexit, + AC_DEFINE(onexit,atexit),dnl just in case + [AC_DEFINE(NO_ONEXIT) + AC_CHECK_FUNC(onexit,, + [AC_CHECK_FUNC(on_exit, + AC_DEFINE(onexit,on_exit),)])]) +else true +fi + +# We need multilib support, but only if configuring for the target. +AC_OUTPUT(Makefile, +[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h +if test -n "$CONFIG_FILES"; then + if test -n "${with_target_subdir}"; then + # FIXME: We shouldn't need to set ac_file + ac_file=Makefile + . ${topsrcdir}/config-ml.in + fi +fi], +srcdir=${srcdir} +host=${host} +target=${target} +with_target_subdir=${with_target_subdir} +with_multisubdir=${with_multisubdir} +ac_configure_args="--enable-multilib ${ac_configure_args}" +CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} +topsrcdir=${topsrcdir} +) + + + +dnl Local Variables: +dnl comment-start: "dnl " +dnl comment-end: "" +dnl comment-start-skip: "\\bdnl\\b\\s *" +dnl End: |