Mercurial > hg > octave-nkf > gnulib-hg

annotate m4/getline.m4 @ 7148:06ddea502cf5

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
.
author Karl Berry <karl@freefriends.org>
date Wed, 16 Aug 2006 08:04:38 +0000
parents 518e17651b9d
children d445de86b311
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
7016
518e17651b9d Avoid causing trouble in relocatable.c.
Bruno Haible <bruno@clisp.org>
parents: 6011
diff changeset
1 # getline.m4 serial 14
4166
053cd474cdc5 (gl_PREREQ_GETLINE): Require AC_HEADER_STDC.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4108
diff changeset
2
7016
518e17651b9d Avoid causing trouble in relocatable.c.
Bruno Haible <bruno@clisp.org>
parents: 6011
diff changeset
3 dnl Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2005, 2006 Free Software
4166
053cd474cdc5 (gl_PREREQ_GETLINE): Require AC_HEADER_STDC.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4108
diff changeset
4 dnl Foundation, Inc.
5611
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4809
diff changeset
5 dnl
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4809
diff changeset
6 dnl This file is free software; the Free Software Foundation
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4809
diff changeset
7 dnl gives unlimited permission to copy and/or distribute it,
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4809
diff changeset
8 dnl with or without modifications, as long as this notice is preserved.
4108
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
9
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
10 AC_PREREQ(2.52)
820
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
11
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
12 dnl See if there's a working, system-supplied version of the getline function.
1095
dcd7ee970a8a Fix typo in comment.
Jim Meyering <jim@meyering.net>
parents: 820
diff changeset
13 dnl We can't just do AC_REPLACE_FUNCS(getline) because some systems
820
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
14 dnl have a function by that name in -linet that doesn't have anything
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
15 dnl to do with the function we need.
6011
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents: 5721
diff changeset
16 AC_DEFUN([gl_FUNC_GETLINE],
4108
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
17 [
5721
abd018cd6020 Use AC_LIBSOURCES and AC_LIBOBJ to indicate source and object files.
Paul Eggert <eggert@cs.ucla.edu>
parents: 5611
diff changeset
18 AC_LIBSOURCES([getline.c, getline.h])
abd018cd6020 Use AC_LIBSOURCES and AC_LIBOBJ to indicate source and object files.
Paul Eggert <eggert@cs.ucla.edu>
parents: 5611
diff changeset
19
6011
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents: 5721
diff changeset
20 dnl Persuade glibc <stdio.h> to declare getline().
4108
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
21 AC_REQUIRE([AC_GNU_SOURCE])
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
22
6011
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents: 5721
diff changeset
23 AC_CHECK_DECLS([getline])
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents: 5721
diff changeset
24
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents: 5721
diff changeset
25 gl_getline_needs_run_time_check=no
820
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
26 AC_CHECK_FUNC(getline,
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
27 dnl Found it in some library. Verify that it works.
6011
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents: 5721
diff changeset
28 gl_getline_needs_run_time_check=yes,
820
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
29 am_cv_func_working_getline=no)
6011
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents: 5721
diff changeset
30 if test $gl_getline_needs_run_time_check = yes; then
820
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
31 AC_CACHE_CHECK([for working getline function], am_cv_func_working_getline,
1912
14abc42d2378 Rename test file from conftestdata to conftest.data
Jim Meyering <jim@meyering.net>
parents: 1702
diff changeset
32 [echo fooN |tr -d '\012'|tr N '\012' > conftest.data
820
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
33 AC_TRY_RUN([
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
34 # include <stdio.h>
4108
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
35 # include <stdlib.h>
3314
0cbeff087afe (AM_FUNC_GETLINE): Quote first arg of AC_DEFUN.
Jim Meyering <jim@meyering.net>
parents: 2685
diff changeset
36 # include <string.h>
820
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
37 int main ()
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
38 { /* Based on a test program from Karl Heuer. */
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
39 char *line = NULL;
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
40 size_t siz = 0;
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
41 int len;
1912
14abc42d2378 Rename test file from conftestdata to conftest.data
Jim Meyering <jim@meyering.net>
parents: 1702
diff changeset
42 FILE *in = fopen ("./conftest.data", "r");
820
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
43 if (!in)
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
44 return 1;
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
45 len = getline (&line, &siz, in);
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
46 exit ((len == 4 && line && strcmp (line, "foo\n") == 0) ? 0 : 1);
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
47 }
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
48 ], am_cv_func_working_getline=yes dnl The library version works.
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
49 , am_cv_func_working_getline=no dnl The library version does NOT work.
7016
518e17651b9d Avoid causing trouble in relocatable.c.
Bruno Haible <bruno@clisp.org>
parents: 6011
diff changeset
50 , dnl We're cross compiling. Assume it works on glibc2 systems.
518e17651b9d Avoid causing trouble in relocatable.c.
Bruno Haible <bruno@clisp.org>
parents: 6011
diff changeset
51 [AC_EGREP_CPP([Lucky GNU user],
518e17651b9d Avoid causing trouble in relocatable.c.
Bruno Haible <bruno@clisp.org>
parents: 6011
diff changeset
52 [
518e17651b9d Avoid causing trouble in relocatable.c.
Bruno Haible <bruno@clisp.org>
parents: 6011
diff changeset
53 #include <features.h>
518e17651b9d Avoid causing trouble in relocatable.c.
Bruno Haible <bruno@clisp.org>
parents: 6011
diff changeset
54 #ifdef __GNU_LIBRARY__
518e17651b9d Avoid causing trouble in relocatable.c.
Bruno Haible <bruno@clisp.org>
parents: 6011
diff changeset
55 #if (__GLIBC__ >= 2)
518e17651b9d Avoid causing trouble in relocatable.c.
Bruno Haible <bruno@clisp.org>
parents: 6011
diff changeset
56 Lucky GNU user
518e17651b9d Avoid causing trouble in relocatable.c.
Bruno Haible <bruno@clisp.org>
parents: 6011
diff changeset
57 #endif
518e17651b9d Avoid causing trouble in relocatable.c.
Bruno Haible <bruno@clisp.org>
parents: 6011
diff changeset
58 #endif
518e17651b9d Avoid causing trouble in relocatable.c.
Bruno Haible <bruno@clisp.org>
parents: 6011
diff changeset
59 ],
518e17651b9d Avoid causing trouble in relocatable.c.
Bruno Haible <bruno@clisp.org>
parents: 6011
diff changeset
60 [am_cv_func_working_getline=yes],
518e17651b9d Avoid causing trouble in relocatable.c.
Bruno Haible <bruno@clisp.org>
parents: 6011
diff changeset
61 [am_cv_func_working_getline=no])]
820
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
62 )])
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
63 fi
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
64
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
65 if test $am_cv_func_working_getline = no; then
4108
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
66 dnl We must choose a different name for our function, since on ELF systems
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
67 dnl a broken getline() in libc.so would override our getline() in
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
68 dnl libgettextlib.so.
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
69 AC_DEFINE([getline], [gnu_getline],
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
70 [Define to a replacement function name for getline().])
2685
d4ea46c69b9f fix typo in last change
Jim Meyering <jim@meyering.net>
parents: 2683
diff changeset
71 AC_LIBOBJ(getline)
4809
cde3aec825b9 Don't include getndelim2.o twice into LIBOBJS.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4463
diff changeset
72
4108
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
73 gl_PREREQ_GETLINE
820
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
74 fi
7d99d39333e1 broken out of ../acinclude.m4
Jim Meyering <jim@meyering.net>
parents:
diff changeset
75 ])
4108
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
76
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
77 # Prerequisites of lib/getline.c.
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
78 AC_DEFUN([gl_PREREQ_GETLINE],
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
79 [
6011
cf3d0bf4fc6f 2005-08-02 Simon Josefsson <jas@extundo.com>
Simon Josefsson <simon@josefsson.org>
parents: 5721
diff changeset
80 gl_FUNC_GETDELIM
4108
c1d472db5c30 An independent .m4 file for each module.
Bruno Haible <bruno@clisp.org>
parents: 3314
diff changeset
81 ])