diff options
Diffstat (limited to 'gl/m4/strings_h.m4')
-rw-r--r-- | gl/m4/strings_h.m4 | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/gl/m4/strings_h.m4 b/gl/m4/strings_h.m4 new file mode 100644 index 00000000..76ef2424 --- /dev/null +++ b/gl/m4/strings_h.m4 | |||
@@ -0,0 +1,52 @@ | |||
1 | # Configure a replacement for <strings.h>. | ||
2 | # serial 6 | ||
3 | |||
4 | # Copyright (C) 2007, 2009-2013 Free Software Foundation, Inc. | ||
5 | # This file is free software; the Free Software Foundation | ||
6 | # gives unlimited permission to copy and/or distribute it, | ||
7 | # with or without modifications, as long as this notice is preserved. | ||
8 | |||
9 | AC_DEFUN([gl_HEADER_STRINGS_H], | ||
10 | [ | ||
11 | dnl Use AC_REQUIRE here, so that the default behavior below is expanded | ||
12 | dnl once only, before all statements that occur in other macros. | ||
13 | AC_REQUIRE([gl_HEADER_STRINGS_H_BODY]) | ||
14 | ]) | ||
15 | |||
16 | AC_DEFUN([gl_HEADER_STRINGS_H_BODY], | ||
17 | [ | ||
18 | AC_REQUIRE([gl_HEADER_STRINGS_H_DEFAULTS]) | ||
19 | |||
20 | gl_CHECK_NEXT_HEADERS([strings.h]) | ||
21 | if test $ac_cv_header_strings_h = yes; then | ||
22 | HAVE_STRINGS_H=1 | ||
23 | else | ||
24 | HAVE_STRINGS_H=0 | ||
25 | fi | ||
26 | AC_SUBST([HAVE_STRINGS_H]) | ||
27 | |||
28 | dnl Check for declarations of anything we want to poison if the | ||
29 | dnl corresponding gnulib module is not in use. | ||
30 | gl_WARN_ON_USE_PREPARE([[ | ||
31 | /* Minix 3.1.8 has a bug: <sys/types.h> must be included before | ||
32 | <strings.h>. */ | ||
33 | #include <sys/types.h> | ||
34 | #include <strings.h> | ||
35 | ]], [ffs strcasecmp strncasecmp]) | ||
36 | ]) | ||
37 | |||
38 | AC_DEFUN([gl_STRINGS_MODULE_INDICATOR], | ||
39 | [ | ||
40 | dnl Use AC_REQUIRE here, so that the default settings are expanded once only. | ||
41 | AC_REQUIRE([gl_HEADER_STRINGS_H_DEFAULTS]) | ||
42 | gl_MODULE_INDICATOR_SET_VARIABLE([$1]) | ||
43 | ]) | ||
44 | |||
45 | AC_DEFUN([gl_HEADER_STRINGS_H_DEFAULTS], | ||
46 | [ | ||
47 | GNULIB_FFS=0; AC_SUBST([GNULIB_FFS]) | ||
48 | dnl Assume proper GNU behavior unless another module says otherwise. | ||
49 | HAVE_FFS=1; AC_SUBST([HAVE_FFS]) | ||
50 | HAVE_STRCASECMP=1; AC_SUBST([HAVE_STRCASECMP]) | ||
51 | HAVE_DECL_STRNCASECMP=1; AC_SUBST([HAVE_DECL_STRNCASECMP]) | ||
52 | ]) | ||