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-rw-r--r--gl/m4/strerror.m447
1 files changed, 47 insertions, 0 deletions
diff --git a/gl/m4/strerror.m4 b/gl/m4/strerror.m4
new file mode 100644
index 00000000..eb7d45aa
--- /dev/null
+++ b/gl/m4/strerror.m4
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1# strerror.m4 serial 7
2dnl Copyright (C) 2002, 2007 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7AC_DEFUN([gl_FUNC_STRERROR],
8[
9 AC_REQUIRE([gl_FUNC_STRERROR_SEPARATE])
10 if test $gl_cv_func_working_strerror = no; then
11 AC_LIBOBJ([strerror])
12 AC_DEFINE_UNQUOTED([REPLACE_STRERROR], [$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).
18AC_DEFUN([gl_FUNC_STRERROR_SEPARATE],
19[
20 AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
21 AC_CACHE_CHECK([for working strerror function],
22 [gl_cv_func_working_strerror],
23 [AC_RUN_IFELSE(
24 [AC_LANG_PROGRAM(
25 [#include <string.h>
26 ],
27 [return !*strerror (-2);])],
28 [gl_cv_func_working_strerror=yes],
29 [gl_cv_func_working_strerror=no],
30 [dnl Assume crossbuild works if it compiles.
31 AC_COMPILE_IFELSE(
32 [AC_LANG_PROGRAM(
33 [#include <string.h>
34 ],
35 [return !*strerror (-2);])],
36 [gl_cv_func_working_strerror=yes],
37 [gl_cv_func_working_strerror=no])])])
38 if test $gl_cv_func_working_strerror = no ; then
39 REPLACE_STRERROR=1
40 gl_PREREQ_STRERROR
41 fi
42])
43
44# Prerequisites of lib/strerror.c.
45AC_DEFUN([gl_PREREQ_STRERROR], [
46 AC_CHECK_DECLS([strerror])
47])