# Process this file with autoconf to produce a configure script.
-# Copyright (C) 1995, 1997, 1998, 1999 Free Software Foundation, Inc.
+# Copyright (C) 1995, 1997, 1998, 1999, 2002, 2003
+# Free Software Foundation, Inc.
# Contributed by Dave Love (d.love@dl.ac.uk).
#
#This file is part of GNU Fortran.
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)
+# This works around the fact that libtool configuration may change LD
+# for this particular configuration, but some shells, instead of
+# keeping the changes in LD private, export them just because LD is
+# exported.
+ORIGINAL_LD_FOR_MULTILIBS=$LD
-# We have to handle 3 cases -- native, cross and canadian cross -- and
-# the extension returned from this macro needs to be treated as a possible
-# scenario and not the only one.
-AC_EXEEXT
+GLIBCPP_TOPREL_CONFIGURE
-# 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/$compiler_name$EXEEXT; 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
+AC_CANONICAL_SYSTEM
+target_alias=${target_alias-$target}
+AC_SUBST(target_alias)
+
+GLIBCPP_CONFIGURE(.)
+GLIBCPP_EXPORT_INSTALL_INFO
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
+
+AM_PROG_LIBTOOL
dnl These should be inherited in the recursive make, but ensure they are
dnl defined:
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 $ac_cpp" >&AC_FD_CC
- AC_EGREP_CPP(F2C_INTEGER=int,
-[#include "proj.h"
-#define FFECOM_DETERMINE_TYPES 1
-#include "com.h"
-#if FFECOM_f2cINTEGER == FFECOM_f2ccodeLONG
-F2C_INTEGER=long int
-#elif FFECOM_f2cINTEGER == FFECOM_f2ccodeINT
-F2C_INTEGER=int
-#else
-# error "Cannot find a suitable type for F2C_INTEGER"
-#endif
-],
- g77_cv_sys_f2cinteger=int,)
+dnl Checks for g77 integer types built into gcc's C front end.
+AC_MSG_CHECKING(for built-in g77 integer types)
+AC_CACHE_VAL(libf2c_cv_has_g77_builtin_types,
+[AC_TRY_COMPILE(,
+ [__g77_integer g77i;
+__g77_uinteger g77ui;
+__g77_longint g77l;
+__g77_ulongint g77ul;],
+ libf2c_cv_has_g77_builtin_types=yes,
+ libf2c_cv_has_g77_builtin_types=no)])
+AC_MSG_RESULT($libf2c_cv_has_g77_builtin_types)
+if test $libf2c_cv_has_g77_builtin_types = no; then
+ AC_MSG_ERROR([gcc doesn't define all of the built in types __g77_integer,
+__g77_uinteger, __g77_longint, and __g77_ulongint. You may not be using
+a new enough version of gcc, or your target may not have type sizes which
+accommodate those types.])
fi
-if test "$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=$late_ac_cpp
# avoid confusion in case the `makefile's from the f2c distribution have
# got put here
test -f libI77/makefile && mv libI77/makefile libI77/makefile.ori
test -f libU77/makefile && mv libU77/makefile libU77/makefile.ori
-# Get the version trigger filename from the toplevel
-if [[ "${with_gcc_version_trigger+set}" = set ]]; then
- gcc_version_trigger=$with_gcc_version_trigger
- gcc_version=`sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/' < ${gcc_version_trigger}`
-else
- gcc_version_trigger=
- gcc_version=UNKNOWN
-fi
-
-AC_SUBST(gcc_version)
-AC_SUBST(gcc_version_trigger)
-AC_CANONICAL_SYSTEM
-AC_SUBST(target_alias)
AC_CONFIG_SUBDIRS(libU77 libI77 libF77)
# Do Makefile first since g2c.h depends on it and shouldn't get an
# earlier timestamp. Of course, it does when the multilib gunk below
AC_OUTPUT(Makefile g2c.h:g2c.hin,
[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
if test -n "$CONFIG_FILES"; then
+ LD="${ORIGINAL_LD_FOR_MULTILIBS}"
if test -n "${with_target_subdir}"; then
# FIXME: We shouldn't need to set ac_file
ac_file=Makefile
- . ${topsrcdir}/config-ml.in
+ . ${toplevel_srcdir}/config-ml.in
touch g2c.h # to keep it more recent than Makefile
fi
fi],
with_target_subdir=${with_target_subdir}
with_multisubdir=${with_multisubdir}
ac_configure_args="--enable-multilib ${ac_configure_args}"
+toplevel_srcdir=${toplevel_srcdir}
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
-topsrcdir=${topsrcdir}
+ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
)
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