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81fea2b1 | 1 | # Process this file with autoconf to produce a configure script. |
3343fdd2 AO |
2 | # Copyright (C) 1995, 1997, 1998, 1999, 2002, 2003 |
3 | # Free Software Foundation, Inc. | |
81fea2b1 JL |
4 | # Contributed by Dave Love (d.love@dl.ac.uk). |
5 | # | |
6 | #This file is part of GNU Fortran. | |
7 | # | |
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) | |
11 | #any later version. | |
12 | # | |
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. | |
17 | # | |
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 | |
21 | #02111-1307, USA. | |
22 | ||
3508525e | 23 | AC_PREREQ(2.13) |
81fea2b1 JL |
24 | AC_INIT(libF77/Version.c) |
25 | ||
6706f116 AO |
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 | |
29 | # exported. | |
30 | ORIGINAL_LD_FOR_MULTILIBS=$LD | |
31 | ||
aebb8c22 DD |
32 | GLIBCPP_TOPREL_CONFIGURE |
33 | ||
ceb5e20f GK |
34 | AC_CANONICAL_SYSTEM |
35 | target_alias=${target_alias-$target} | |
36 | AC_SUBST(target_alias) | |
37 | ||
38 | GLIBCPP_CONFIGURE(.) | |
39 | GLIBCPP_EXPORT_INSTALL_INFO | |
ab300375 | 40 | |
f30bc2e7 | 41 | dnl Checks for programs. |
7c6b0e92 | 42 | |
dedc4a53 | 43 | AM_PROG_LIBTOOL |
81fea2b1 JL |
44 | |
45 | dnl These should be inherited in the recursive make, but ensure they are | |
46 | dnl defined: | |
47 | test "$AR" || AR=ar | |
48 | AC_SUBST(AR) | |
49 | if test "$RANLIB"; then : | |
50 | AC_SUBST(RANLIB) | |
81fea2b1 | 51 | else |
81fea2b1 JL |
52 | AC_PROG_RANLIB |
53 | fi | |
b53c05f5 DL |
54 | AC_PROG_INSTALL |
55 | AC_PROG_MAKE_SET | |
81fea2b1 JL |
56 | |
57 | dnl Checks for header files. | |
58 | # Sanity check for the cross-compilation case: | |
59 | AC_CHECK_HEADER(stdio.h,:, | |
60 | [AC_MSG_ERROR([Can't find stdio.h. | |
61 | You must have a usable C system for the target already installed, at least | |
62 | including headers and, preferably, the library, before you can configure | |
63 | the G77 runtime system. If necessary, install gcc now with \`LANGUAGES=c', | |
64 | then the target library, then build with \`LANGUAGES=f77'.])]) | |
65 | ||
3eb10f8a CD |
66 | dnl Checks for g77 integer types built into gcc's C front end. |
67 | AC_MSG_CHECKING(for built-in g77 integer types) | |
68 | AC_CACHE_VAL(libf2c_cv_has_g77_builtin_types, | |
69 | [AC_TRY_COMPILE(, | |
70 | [__g77_integer g77i; | |
71 | __g77_uinteger g77ui; | |
72 | __g77_longint g77l; | |
73 | __g77_ulongint g77ul;], | |
74 | libf2c_cv_has_g77_builtin_types=yes, | |
75 | libf2c_cv_has_g77_builtin_types=no)]) | |
76 | AC_MSG_RESULT($libf2c_cv_has_g77_builtin_types) | |
77 | if test $libf2c_cv_has_g77_builtin_types = no; then | |
78 | AC_MSG_ERROR([gcc doesn't define all of the built in types __g77_integer, | |
79 | __g77_uinteger, __g77_longint, and __g77_ulongint. You may not be using | |
80 | a new enough version of gcc, or your target may not have type sizes which | |
81 | accommodate those types.]) | |
81fea2b1 | 82 | fi |
81fea2b1 | 83 | |
81fea2b1 JL |
84 | # avoid confusion in case the `makefile's from the f2c distribution have |
85 | # got put here | |
86 | test -f libF77/makefile && mv libF77/makefile libF77/makefile.ori | |
87 | test -f libI77/makefile && mv libI77/makefile libI77/makefile.ori | |
88 | test -f libU77/makefile && mv libU77/makefile libU77/makefile.ori | |
89 | ||
b53c05f5 | 90 | AC_CONFIG_SUBDIRS(libU77 libI77 libF77) |
9eb3f9c9 | 91 | # Do Makefile first since g2c.h depends on it and shouldn't get an |
e7294982 DL |
92 | # earlier timestamp. Of course, it does when the multilib gunk below |
93 | # edits Makefile, sigh; see additional touch below. | |
9eb3f9c9 | 94 | AC_OUTPUT(Makefile g2c.h:g2c.hin, |
ab300375 RL |
95 | [test -z "$CONFIG_HEADERS" || echo timestamp > stamp-h |
96 | if test -n "$CONFIG_FILES"; then | |
6706f116 | 97 | LD="${ORIGINAL_LD_FOR_MULTILIBS}" |
ab300375 RL |
98 | if test -n "${with_target_subdir}"; then |
99 | # FIXME: We shouldn't need to set ac_file | |
100 | ac_file=Makefile | |
ceb5e20f | 101 | . ${toplevel_srcdir}/config-ml.in |
e7294982 | 102 | touch g2c.h # to keep it more recent than Makefile |
ab300375 RL |
103 | fi |
104 | fi], | |
105 | srcdir=${srcdir} | |
106 | host=${host} | |
107 | target=${target} | |
108 | with_target_subdir=${with_target_subdir} | |
109 | with_multisubdir=${with_multisubdir} | |
110 | ac_configure_args="--enable-multilib ${ac_configure_args}" | |
ceb5e20f | 111 | toplevel_srcdir=${toplevel_srcdir} |
ab300375 | 112 | CONFIG_SHELL=${CONFIG_SHELL-/bin/sh} |
3343fdd2 | 113 | ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}" |
ab300375 RL |
114 | ) |
115 | ||
81fea2b1 JL |
116 | |
117 | dnl Local Variables: | |
118 | dnl comment-start: "dnl " | |
119 | dnl comment-end: "" | |
120 | dnl comment-start-skip: "\\bdnl\\b\\s *" | |
121 | dnl End: |