# Process this file with autoconf to produce a configure script.
-# Copyright (C) 1995, 1997, 1998 Free Software Foundation, Inc.
+# 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.
#the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
#02111-1307, USA.
+AC_PREREQ(2.13)
AC_INIT(libF77/Version.c)
-AC_REVISION(1.12)
+AC_CANONICAL_SYSTEM
+target_alias=${target_alias-$target}
+AC_SUBST(target_alias)
+
+GLIBCPP_CONFIGURE(.)
+GLIBCPP_EXPORT_INSTALL_INFO
+
+# 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
+
+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 $srcdir/.., config.h which they need
-# is in ../.. and the config files are in $srcdir/../../config.
-AC_MSG_CHECKING(f2c integer type)
-late_ac_cpp=$ac_cpp
-ac_cpp="$late_ac_cpp -I../../gcc/f -I../../gcc -I../../gcc/config"
-if test "$subdir" != . ; then
- ac_cpp="$ac_cpp -I$srcdir/../gcc/f -I$srcdir/../gcc -I$srcdir/../gcc/config"
-fi
-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.])
+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 $libf2c_cv_has_g77_builtin_types = no; then
+ AC_MSG_ERROR([gcc doesn't define all of the built in types __g77_integer,
+__g77_uinteger, __g77_longint, and __g77_ulongint. You may not be using
+a new enough version of gcc, or your target may not have type sizes which
+accommodate those types.])
fi
-)
-AC_MSG_RESULT($g77_cv_sys_f2cinteger)
-F2C_INTEGER=$g77_cv_sys_f2cinteger
-ac_cpp=$late_ac_cpp
-AC_SUBST(F2C_INTEGER)
-
-AC_MSG_CHECKING(f2c long int type)
-late_ac_cpp=$ac_cpp
-ac_cpp="$late_ac_cpp -I../../gcc/f -I../../gcc -I../../gcc/config"
-if test "$subdir" != . ; then
- ac_cpp="$ac_cpp -I$srcdir/../gcc/f -I$srcdir/../gcc -I$srcdir/../gcc/config"
-fi
-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_cpp=$late_ac_cpp
-AC_SUBST(F2C_LONGINT)
# avoid confusion in case the `makefile's from the f2c distribution have
# got put here
test -f libI77/makefile && mv libI77/makefile libI77/makefile.ori
test -f libU77/makefile && mv libU77/makefile libU77/makefile.ori
-# Get the version trigger filename from the toplevel
-if [[ "${with_gcc_version_trigger+set}" = set ]]; then
- gcc_version_trigger=$with_gcc_version_trigger
- gcc_version=`sed -e 's/.*\"\([[^ \"]]*\)[[ \"]].*/\1/' < ${gcc_version_trigger}`
-else
- gcc_version_trigger=
- gcc_version=UNKNOWN
-fi
-
-AC_SUBST(gcc_version)
-AC_SUBST(gcc_version_trigger)
-AC_CANONICAL_SYSTEM
-AC_SUBST(target_alias)
-
AC_CONFIG_SUBDIRS(libU77 libI77 libF77)
-AC_OUTPUT(Makefile g2c.h:g2c.hin)
+# Do Makefile first since g2c.h depends on it and shouldn't get an
+# earlier timestamp. Of course, it does when the multilib gunk below
+# edits Makefile, sigh; see additional touch below.
+AC_OUTPUT(Makefile g2c.h:g2c.hin,
+ [test -z "$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
+ . ${toplevel_srcdir}/config-ml.in
+ touch g2c.h # to keep it more recent than Makefile
+ fi
+fi],
+srcdir=${srcdir}
+host=${host}
+target=${target}
+with_target_subdir=${with_target_subdir}
+with_multisubdir=${with_multisubdir}
+ac_configure_args="--enable-multilib ${ac_configure_args}"
+toplevel_srcdir=${toplevel_srcdir}
+CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
+)
+
dnl Local Variables:
dnl comment-start: "dnl "
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