# Process this file with autoconf to produce a configure script.
# Copyright (C) 1995, 1997, 1998, 1999 Free Software Foundation, Inc.
# Contributed by Dave Love (d.love@dl.ac.uk).
#
#This file is part of GNU Fortran.
#
#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_PREREQ(2.13)
AC_INIT(libF77/Version.c)
if test "${srcdir}" = "." ; then
if test "${with_target_subdir}" != "." ; then
topsrcdir=${with_multisrctop}../..
else
topsrcdir=${with_multisrctop}..
fi
else
topsrcdir=${srcdir}/..
fi
dnl This is needed for a multilibbed build in the source tree so
dnl that install-sh and config.sub get found.
AC_CONFIG_AUX_DIR($topsrcdir)
# If the language specific compiler does not exist, but the "gcc" directory
# does, we do not build anything. Note, $r is set by the top-level Makefile.
# Note that when we look for the compiler, we search both with and without
# extension to handle cross and canadian cross builds.
compiler_name=f771
rm -f skip-this-dir
AC_MSG_CHECKING(if compiler $compiler_name has been built)
AC_CACHE_VAL(g77_cv_compiler_exists,
[g77_cv_compiler_exists=yes
if test -n "$r"; then
if test -d "$r"/gcc; then
if test -f "$r"/gcc/$compiler_name \
|| test -f "$r"/gcc/$compiler_name.exe; then
true
else
g77_cv_compiler_exists=no
echo "rm -f config.cache config.log multilib.out" > skip-this-dir
fi
fi
fi
])
AC_MSG_RESULT($g77_cv_compiler_exists)
if test x$g77_cv_compiler_exists = xno
then
rm -f Makefile conftest* confdefs* core
exit 0
fi
dnl Checks for programs.
# For g77 we'll set CC to point at the built gcc, but this will get it into
# the makefiles
AC_PROG_CC
dnl These should be inherited in the recursive make, but ensure they are
dnl defined:
test "$AR" || AR=ar
AC_SUBST(AR)
if test "$RANLIB"; then :
AC_SUBST(RANLIB)
else
AC_PROG_RANLIB
fi
AC_PROG_INSTALL
AC_PROG_MAKE_SET
dnl Checks for header files.
# Sanity check for the cross-compilation case:
AC_CHECK_HEADER(stdio.h,:,
[AC_MSG_ERROR([Can't find stdio.h.
You must have a usable C system for the target already installed, at least
including headers and, preferably, the library, before you can configure
the G77 runtime system. If necessary, install gcc now with \`LANGUAGES=c',
then the target library, then build with \`LANGUAGES=f77'.])])
# We have to firkle with the info in hconfig.h to figure out suitable types
# (via com.h). proj.h and com.h are in gcc/f/, config.h which they need
# is in gcc/ and the config files are in gcc/config/.
AC_MSG_CHECKING(f2c integer type)
# Set this back later below!
late_ac_cpp=$ac_cpp
late_cflags=$CFLAGS
extra_includes="-I$topsrcdir/gcc/f -I$topsrcdir/gcc -I$topsrcdir/include -I$topsrcdir/gcc/config -I$r/gcc"
ac_cpp="$late_ac_cpp -DIN_GCC -DHAVE_CONFIG_H $extra_includes"
# The AC_EGREP_CPPs below have been known to fail when the header
# path is wrong after things have been moved about; the cpp error status
# counts for nothing. First check that there aren't any errors from
# the headers.
CFLAGS="$CFLAGS -DHAVE_CONFIG_H -DIN_GCC $extra_includes"
AC_TRY_COMPILE([#include "proj.h"
#define FFECOM_DETERMINE_TYPES 1
#include "com.h"],,,
AC_MSG_ERROR([Can't run check for integer sizes -- see config.log]))
CFLAGS=$late_cflags
AC_CACHE_VAL(g77_cv_sys_f2cinteger,
echo "configure:__oline__: using $ac_cpp" >&AC_FD_CC
AC_EGREP_CPP(F2C_INTEGER=long int,
[#include "proj.h"
#define FFECOM_DETERMINE_TYPES 1
#include "com.h"
#if FFECOM_f2cINTEGER == FFECOM_f2ccodeLONG
F2C_INTEGER=long int
#elif FFECOM_f2cINTEGER == FFECOM_f2ccodeINT
F2C_INTEGER=int
#else
# error "Cannot find a suitable type for F2C_INTEGER"
#endif
],
g77_cv_sys_f2cinteger="long int",)
if test "$g77_cv_sys_f2cinteger" = ""; then
echo "configure:__oline__: using $ac_cpp" >&AC_FD_CC
AC_EGREP_CPP(F2C_INTEGER=int,
[#include "proj.h"
#define FFECOM_DETERMINE_TYPES 1
#include "com.h"
#if FFECOM_f2cINTEGER == FFECOM_f2ccodeLONG
F2C_INTEGER=long int
#elif FFECOM_f2cINTEGER == FFECOM_f2ccodeINT
F2C_INTEGER=int
#else
# error "Cannot find a suitable type for F2C_INTEGER"
#endif
],
g77_cv_sys_f2cinteger=int,)
fi
if test "$g77_cv_sys_f2cinteger" = ""; then
AC_MSG_RESULT("")
AC_MSG_ERROR([Can't determine type for f2c integer; config.log may help.])
fi
)
AC_MSG_RESULT($g77_cv_sys_f2cinteger)
F2C_INTEGER=$g77_cv_sys_f2cinteger
AC_SUBST(F2C_INTEGER)
AC_MSG_CHECKING(f2c long int type)
AC_CACHE_VAL(g77_cv_sys_f2clongint,
echo "configure:__oline__: using $ac_cpp" >&AC_FD_CC
AC_EGREP_CPP(F2C_LONGINT=long int,
[#include "proj.h"
#define FFECOM_DETERMINE_TYPES 1
#include "com.h"
#if FFECOM_f2cLONGINT == FFECOM_f2ccodeLONG
F2C_LONGINT=long int
#elif FFECOM_f2cLONGINT == FFECOM_f2ccodeLONGLONG
F2C_LONGINT=long long int
#else
# error "Cannot find a suitable type for F2C_LONGINT"
#endif
],
g77_cv_sys_f2clongint="long int",)
if test "$g77_cv_sys_f2clongint" = ""; then
echo "configure:__oline__: using $ac_cpp" >&AC_FD_CC
AC_EGREP_CPP(F2C_LONGINT=long long int,
[#include "proj.h"
#define FFECOM_DETERMINE_TYPES 1
#include "com.h"
#if FFECOM_f2cLONGINT == FFECOM_f2ccodeLONG
F2C_LONGINT=long int
#elif FFECOM_f2cLONGINT == FFECOM_f2ccodeLONGLONG
F2C_LONGINT=long long int
#else
# error "Cannot find a suitable type for F2C_LONGINT"
#endif
],
g77_cv_sys_f2clongint="long long int",)
fi
if test "$g77_cv_sys_f2clongint" = ""; then
AC_MSG_RESULT("")
AC_MSG_ERROR([Can't determine type for f2c long int; config.log may help.])
fi
)
AC_MSG_RESULT($g77_cv_sys_f2clongint)
F2C_LONGINT=$g77_cv_sys_f2clongint
AC_SUBST(F2C_LONGINT)
ac_cpp=$late_ac_cpp
# avoid confusion in case the `makefile's from the f2c distribution have
# got put here
test -f libF77/makefile && mv libF77/makefile libF77/makefile.ori
test -f libI77/makefile && mv libI77/makefile libI77/makefile.ori
test -f libU77/makefile && mv libU77/makefile libU77/makefile.ori
# Get the version trigger filename from the toplevel
if [[ "${with_gcc_version_trigger+set}" = set ]]; then
gcc_version_trigger=$with_gcc_version_trigger
gcc_version=`sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/' < ${gcc_version_trigger}`
else
gcc_version_trigger=
gcc_version=UNKNOWN
fi
AC_SUBST(gcc_version)
AC_SUBST(gcc_version_trigger)
AC_CANONICAL_SYSTEM
AC_SUBST(target_alias)
AC_CONFIG_SUBDIRS(libU77 libI77 libF77)
# Do Makefile first since g2c.h depends on it and shouldn't get an
# earlier timestamp. Of course, it does when the multilib gunk below
# edits Makefile, sigh; see additional touch below.
AC_OUTPUT(Makefile g2c.h:g2c.hin,
[test -z "$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
. ${topsrcdir}/config-ml.in
touch g2c.h # to keep it more recent than Makefile
fi
fi],
srcdir=${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: