146 lines
4.8 KiB
Plaintext
146 lines
4.8 KiB
Plaintext
# Process this file with autoconf to produce a configure script.
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# Copyright (C) 1995, 1997, 1998, 1999, 2002 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 Fortran.
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#
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#GNU Fortran 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 Fortran 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 Fortran; 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(libF77/Version.c)
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# This works around the fact that libtool configuration may change LD
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# for this particular configuration, but some shells, instead of
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# keeping the changes in LD private, export them just because LD is
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# exported.
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ORIGINAL_LD_FOR_MULTILIBS=$LD
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AC_CANONICAL_SYSTEM
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target_alias=${target_alias-$target}
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AC_SUBST(target_alias)
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GLIBCPP_CONFIGURE(.)
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GLIBCPP_EXPORT_INSTALL_INFO
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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=f771
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rm -f skip-this-dir
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AC_MSG_CHECKING(if compiler $compiler_name has been built)
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AC_CACHE_VAL(g77_cv_compiler_exists,
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[g77_cv_compiler_exists=yes
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if test -n "$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/$compiler_name.exe; then
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true
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else
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g77_cv_compiler_exists=no
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echo "rm -f config.cache config.log multilib.out" > skip-this-dir
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fi
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fi
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fi
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])
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AC_MSG_RESULT($g77_cv_compiler_exists)
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if test x$g77_cv_compiler_exists = xno
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then
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rm -f Makefile conftest* confdefs* core
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exit 0
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fi
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dnl Checks for programs.
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AM_PROG_LIBTOOL
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dnl These should be inherited in the recursive make, but ensure they are
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dnl defined:
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test "$AR" || AR=ar
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AC_SUBST(AR)
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if test "$RANLIB"; then :
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AC_SUBST(RANLIB)
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else
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AC_PROG_RANLIB
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fi
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AC_PROG_INSTALL
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AC_PROG_MAKE_SET
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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 G77 runtime system. If necessary, install gcc now with \`LANGUAGES=c',
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then the target library, then build with \`LANGUAGES=f77'.])])
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dnl Checks for g77 integer types built into gcc's C front end.
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AC_MSG_CHECKING(for built-in g77 integer types)
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AC_CACHE_VAL(libf2c_cv_has_g77_builtin_types,
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[AC_TRY_COMPILE(,
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[__g77_integer g77i;
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__g77_uinteger g77ui;
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__g77_longint g77l;
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__g77_ulongint g77ul;],
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libf2c_cv_has_g77_builtin_types=yes,
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libf2c_cv_has_g77_builtin_types=no)])
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AC_MSG_RESULT($libf2c_cv_has_g77_builtin_types)
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if test $libf2c_cv_has_g77_builtin_types = no; then
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AC_MSG_ERROR([gcc doesn't define all of the built in types __g77_integer,
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__g77_uinteger, __g77_longint, and __g77_ulongint. You may not be using
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a new enough version of gcc, or your target may not have type sizes which
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accommodate those types.])
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fi
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# avoid confusion in case the `makefile's from the f2c distribution have
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# got put here
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test -f libF77/makefile && mv libF77/makefile libF77/makefile.ori
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test -f libI77/makefile && mv libI77/makefile libI77/makefile.ori
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test -f libU77/makefile && mv libU77/makefile libU77/makefile.ori
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AC_CONFIG_SUBDIRS(libU77 libI77 libF77)
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# Do Makefile first since g2c.h depends on it and shouldn't get an
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# earlier timestamp. Of course, it does when the multilib gunk below
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# edits Makefile, sigh; see additional touch below.
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AC_OUTPUT(Makefile g2c.h:g2c.hin,
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[test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
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if test -n "$CONFIG_FILES"; then
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LD="${ORIGINAL_LD_FOR_MULTILIBS}"
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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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. ${toplevel_srcdir}/config-ml.in
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touch g2c.h # to keep it more recent than Makefile
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fi
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fi],
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srcdir=${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 ${ac_configure_args}"
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toplevel_srcdir=${toplevel_srcdir}
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CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
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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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