1 # Process this file with autoconf to produce a configure script.
2 # Copyright (C) 1995, 1997, 1998, 1999, 2002 Free Software Foundation, Inc.
3 # Contributed by Dave Love (d.love@dl.ac.uk).
5 #This file is part of GNU Fortran.
7 #GNU Fortran is free software; you can redistribute it and/or modify
8 #it under the terms of the GNU General Public License as published by
9 #the Free Software Foundation; either version 2, or (at your option)
12 #GNU Fortran is distributed in the hope that it will be useful,
13 #but WITHOUT ANY WARRANTY; without even the implied warranty of
14 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 #GNU General Public License for more details.
17 #You should have received a copy of the GNU General Public License
18 #along with GNU Fortran; see the file COPYING. If not, write to
19 #the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 AC_INIT(libF77/Version.c)
25 # This works around the fact that libtool configuration may change LD
26 # for this particular configuration, but some shells, instead of
27 # keeping the changes in LD private, export them just because LD is
29 ORIGINAL_LD_FOR_MULTILIBS=$LD
31 GLIBCPP_TOPREL_CONFIGURE
34 target_alias=${target_alias-$target}
35 AC_SUBST(target_alias)
38 GLIBCPP_EXPORT_INSTALL_INFO
40 dnl Checks for programs.
44 dnl These should be inherited in the recursive make, but ensure they are
48 if test "$RANLIB"; then :
56 dnl Checks for header files.
57 # Sanity check for the cross-compilation case:
58 AC_CHECK_HEADER(stdio.h,:,
59 [AC_MSG_ERROR([Can't find stdio.h.
60 You must have a usable C system for the target already installed, at least
61 including headers and, preferably, the library, before you can configure
62 the G77 runtime system. If necessary, install gcc now with \`LANGUAGES=c',
63 then the target library, then build with \`LANGUAGES=f77'.])])
65 dnl Checks for g77 integer types built into gcc's C front end.
66 AC_MSG_CHECKING(for built-in g77 integer types)
67 AC_CACHE_VAL(libf2c_cv_has_g77_builtin_types,
72 __g77_ulongint g77ul;],
73 libf2c_cv_has_g77_builtin_types=yes,
74 libf2c_cv_has_g77_builtin_types=no)])
75 AC_MSG_RESULT($libf2c_cv_has_g77_builtin_types)
76 if test $libf2c_cv_has_g77_builtin_types = no; then
77 AC_MSG_ERROR([gcc doesn't define all of the built in types __g77_integer,
78 __g77_uinteger, __g77_longint, and __g77_ulongint. You may not be using
79 a new enough version of gcc, or your target may not have type sizes which
80 accommodate those types.])
83 # avoid confusion in case the `makefile's from the f2c distribution have
85 test -f libF77/makefile && mv libF77/makefile libF77/makefile.ori
86 test -f libI77/makefile && mv libI77/makefile libI77/makefile.ori
87 test -f libU77/makefile && mv libU77/makefile libU77/makefile.ori
89 AC_CONFIG_SUBDIRS(libU77 libI77 libF77)
90 # Do Makefile first since g2c.h depends on it and shouldn't get an
91 # earlier timestamp. Of course, it does when the multilib gunk below
92 # edits Makefile, sigh; see additional touch below.
93 AC_OUTPUT(Makefile g2c.h:g2c.hin,
94 [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
95 if test -n "$CONFIG_FILES"; then
96 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
97 if test -n "${with_target_subdir}"; then
98 # FIXME: We shouldn't need to set ac_file
100 . ${toplevel_srcdir}/config-ml.in
101 touch g2c.h # to keep it more recent than Makefile
107 with_target_subdir=${with_target_subdir}
108 with_multisubdir=${with_multisubdir}
109 ac_configure_args="--enable-multilib ${ac_configure_args}"
110 toplevel_srcdir=${toplevel_srcdir}
111 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
116 dnl comment-start: "dnl "
118 dnl comment-start-skip: "\\bdnl\\b\\s *"