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source: kBuild/vendor/grep/2.12/m4/strings_h.m4

Last change on this file was 2595, checked in by bird, 12 years ago

gnu grep version 2.12 (grep-2.12.tar.xz, md5sum=8d2f0346d08b13c18afb81f0e8aa1e2f)

File size: 1.6 KB
Line 
1# Configure a replacement for <strings.h>.
2# serial 6
3
4# Copyright (C) 2007, 2009-2012 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
9AC_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
16AC_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
38AC_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
45AC_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])
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