1 # Process this file with autoconf to produce a configure script.
2 # Copyright (C) 1995, 1997, 1998, 1999, 2002, 2003
3 # Free Software Foundation, Inc.
4 # Contributed by Dave Love (d.love@dl.ac.uk).
6 #This file is part of GNU Fortran.
8 #GNU Fortran is free software; you can redistribute it and/or modify
9 #it under the terms of the GNU General Public License as published by
10 #the Free Software Foundation; either version 2, or (at your option)
13 #GNU Fortran is distributed in the hope that it will be useful,
14 #but WITHOUT ANY WARRANTY; without even the implied warranty of
15 #MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 #GNU General Public License for more details.
18 #You should have received a copy of the GNU General Public License
19 #along with GNU Fortran; see the file COPYING. If not, write to
20 #the Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
24 AC_INIT(libF77/Version.c)
26 # This works around the fact that libtool configuration may change LD
27 # for this particular configuration, but some shells, instead of
28 # keeping the changes in LD private, export them just because LD is
30 ORIGINAL_LD_FOR_MULTILIBS=$LD
32 GLIBCPP_TOPREL_CONFIGURE
35 target_alias=${target_alias-$target}
36 AC_SUBST(target_alias)
39 GLIBCPP_EXPORT_INSTALL_INFO
41 dnl Checks for programs.
45 dnl These should be inherited in the recursive make, but ensure they are
49 if test "$RANLIB"; then :
57 dnl Checks for header files.
58 # Sanity check for the cross-compilation case:
59 AC_CHECK_HEADER(stdio.h,:,
60 [AC_MSG_ERROR([Can't find stdio.h.
61 You must have a usable C system for the target already installed, at least
62 including headers and, preferably, the library, before you can configure
63 the G77 runtime system. If necessary, install gcc now with \`LANGUAGES=c',
64 then the target library, then build with \`LANGUAGES=f77'.])])
66 dnl Checks for g77 integer types built into gcc's C front end.
67 AC_MSG_CHECKING(for built-in g77 integer types)
68 AC_CACHE_VAL(libf2c_cv_has_g77_builtin_types,
73 __g77_ulongint g77ul;],
74 libf2c_cv_has_g77_builtin_types=yes,
75 libf2c_cv_has_g77_builtin_types=no)])
76 AC_MSG_RESULT($libf2c_cv_has_g77_builtin_types)
77 if test $libf2c_cv_has_g77_builtin_types = no; then
78 AC_MSG_ERROR([gcc doesn't define all of the built in types __g77_integer,
79 __g77_uinteger, __g77_longint, and __g77_ulongint. You may not be using
80 a new enough version of gcc, or your target may not have type sizes which
81 accommodate those types.])
84 # avoid confusion in case the `makefile's from the f2c distribution have
86 test -f libF77/makefile && mv libF77/makefile libF77/makefile.ori
87 test -f libI77/makefile && mv libI77/makefile libI77/makefile.ori
88 test -f libU77/makefile && mv libU77/makefile libU77/makefile.ori
90 AC_CONFIG_SUBDIRS(libU77 libI77 libF77)
91 # Do Makefile first since g2c.h depends on it and shouldn't get an
92 # earlier timestamp. Of course, it does when the multilib gunk below
93 # edits Makefile, sigh; see additional touch below.
94 AC_OUTPUT(Makefile g2c.h:g2c.hin,
95 [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h
96 if test -n "$CONFIG_FILES"; then
97 LD="${ORIGINAL_LD_FOR_MULTILIBS}"
98 if test -n "${with_target_subdir}"; then
99 # FIXME: We shouldn't need to set ac_file
101 . ${toplevel_srcdir}/config-ml.in
102 touch g2c.h # to keep it more recent than Makefile
108 with_target_subdir=${with_target_subdir}
109 with_multisubdir=${with_multisubdir}
110 ac_configure_args="--enable-multilib ${ac_configure_args}"
111 toplevel_srcdir=${toplevel_srcdir}
112 CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
113 ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
118 dnl comment-start: "dnl "
120 dnl comment-start-skip: "\\bdnl\\b\\s *"