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comparison m4/strerror.m4 @ 434:b8bf63962a99 3.0

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Added various generated files for release
author lost@l-w.ca
date Fri, 29 Oct 2010 19:20:39 -0600
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433:b142b473f0ee 434:b8bf63962a99
1 # strerror.m4 serial 9
2 dnl Copyright (C) 2002, 2007-2010 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
6
7 AC_DEFUN([gl_FUNC_STRERROR],
8 [
9 AC_REQUIRE([gl_FUNC_STRERROR_SEPARATE])
10 if test $REPLACE_STRERROR = 1; then
11 AC_LIBOBJ([strerror])
12 AC_DEFINE_UNQUOTED([REPLACE_STRERROR], [$REPLACE_STRERROR],
13 [Define this to 1 if strerror is broken.])
14 fi
15 ])
16
17 # Like gl_FUNC_STRERROR, except prepare for separate compilation (no AC_LIBOBJ).
18 AC_DEFUN([gl_FUNC_STRERROR_SEPARATE],
19 [
20 AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
21 AC_REQUIRE([gl_HEADER_ERRNO_H])
22 if test -z "$ERRNO_H"; then
23 AC_CACHE_CHECK([for working strerror function],
24 [gl_cv_func_working_strerror],
25 [AC_RUN_IFELSE(
26 [AC_LANG_PROGRAM(
27 [[#include <string.h>
28 ]],
29 [[return !*strerror (-2);]])],
30 [gl_cv_func_working_strerror=yes],
31 [gl_cv_func_working_strerror=no],
32 [dnl Assume crossbuild works if it compiles.
33 AC_COMPILE_IFELSE(
34 [AC_LANG_PROGRAM(
35 [[#include <string.h>
36 ]],
37 [[return !*strerror (-2);]])],
38 [gl_cv_func_working_strerror=yes],
39 [gl_cv_func_working_strerror=no])
40 ])
41 ])
42 if test $gl_cv_func_working_strerror = no; then
43 dnl The system's strerror() fails to return a string for out-of-range
44 dnl integers. Replace it.
45 REPLACE_STRERROR=1
46 fi
47 else
48 dnl The system's strerror() cannot know about the new errno values we add
49 dnl to <errno.h>. Replace it.
50 REPLACE_STRERROR=1
51 fi
52 if test $REPLACE_STRERROR = 1; then
53 gl_PREREQ_STRERROR
54 fi
55 ])
56
57 # Prerequisites of lib/strerror.c.
58 AC_DEFUN([gl_PREREQ_STRERROR], [
59 AC_CHECK_DECLS([strerror])
60 AC_CHECK_HEADERS_ONCE([sys/socket.h])
61 if test $ac_cv_header_sys_socket_h != yes; then
62 dnl We cannot use AC_CHECK_HEADERS_ONCE here, because that would make
63 dnl the check for those headers unconditional; yet cygwin reports
64 dnl that the headers are present but cannot be compiled (since on
65 dnl cygwin, all socket information should come from sys/socket.h).
66 AC_CHECK_HEADERS([winsock2.h])
67 fi
68 ])