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1# Configure a GNU-like replacement for <string.h>.
2
3# Copyright (C) 2007-2012 Free Software Foundation, Inc.
4# This file is free software; the Free Software Foundation
5# gives unlimited permission to copy and/or distribute it,
6# with or without modifications, as long as this notice is preserved.
7
8# serial 21
9
10# Written by Paul Eggert.
11
12AC_DEFUN([gl_HEADER_STRING_H],
13[
14  dnl Use AC_REQUIRE here, so that the default behavior below is expanded
15  dnl once only, before all statements that occur in other macros.
16  AC_REQUIRE([gl_HEADER_STRING_H_BODY])
17])
18
19AC_DEFUN([gl_HEADER_STRING_H_BODY],
20[
21  AC_REQUIRE([AC_C_RESTRICT])
22  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
23  gl_NEXT_HEADERS([string.h])
24
25  dnl Check for declarations of anything we want to poison if the
26  dnl corresponding gnulib module is not in use, and which is not
27  dnl guaranteed by C89.
28  gl_WARN_ON_USE_PREPARE([[#include <string.h>
29    ]],
30    [ffsl ffsll memmem mempcpy memrchr rawmemchr stpcpy stpncpy strchrnul
31     strdup strncat strndup strnlen strpbrk strsep strcasestr strtok_r
32     strerror_r strsignal strverscmp])
33])
34
35AC_DEFUN([gl_STRING_MODULE_INDICATOR],
36[
37  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
38  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
39  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
40  dnl Define it also as a C macro, for the benefit of the unit tests.
41  gl_MODULE_INDICATOR_FOR_TESTS([$1])
42])
43
44AC_DEFUN([gl_HEADER_STRING_H_DEFAULTS],
45[
46  GNULIB_FFSL=0;        AC_SUBST([GNULIB_FFSL])
47  GNULIB_FFSLL=0;       AC_SUBST([GNULIB_FFSLL])
48  GNULIB_MEMCHR=0;      AC_SUBST([GNULIB_MEMCHR])
49  GNULIB_MEMMEM=0;      AC_SUBST([GNULIB_MEMMEM])
50  GNULIB_MEMPCPY=0;     AC_SUBST([GNULIB_MEMPCPY])
51  GNULIB_MEMRCHR=0;     AC_SUBST([GNULIB_MEMRCHR])
52  GNULIB_RAWMEMCHR=0;   AC_SUBST([GNULIB_RAWMEMCHR])
53  GNULIB_STPCPY=0;      AC_SUBST([GNULIB_STPCPY])
54  GNULIB_STPNCPY=0;     AC_SUBST([GNULIB_STPNCPY])
55  GNULIB_STRCHRNUL=0;   AC_SUBST([GNULIB_STRCHRNUL])
56  GNULIB_STRDUP=0;      AC_SUBST([GNULIB_STRDUP])
57  GNULIB_STRNCAT=0;     AC_SUBST([GNULIB_STRNCAT])
58  GNULIB_STRNDUP=0;     AC_SUBST([GNULIB_STRNDUP])
59  GNULIB_STRNLEN=0;     AC_SUBST([GNULIB_STRNLEN])
60  GNULIB_STRPBRK=0;     AC_SUBST([GNULIB_STRPBRK])
61  GNULIB_STRSEP=0;      AC_SUBST([GNULIB_STRSEP])
62  GNULIB_STRSTR=0;      AC_SUBST([GNULIB_STRSTR])
63  GNULIB_STRCASESTR=0;  AC_SUBST([GNULIB_STRCASESTR])
64  GNULIB_STRTOK_R=0;    AC_SUBST([GNULIB_STRTOK_R])
65  GNULIB_MBSLEN=0;      AC_SUBST([GNULIB_MBSLEN])
66  GNULIB_MBSNLEN=0;     AC_SUBST([GNULIB_MBSNLEN])
67  GNULIB_MBSCHR=0;      AC_SUBST([GNULIB_MBSCHR])
68  GNULIB_MBSRCHR=0;     AC_SUBST([GNULIB_MBSRCHR])
69  GNULIB_MBSSTR=0;      AC_SUBST([GNULIB_MBSSTR])
70  GNULIB_MBSCASECMP=0;  AC_SUBST([GNULIB_MBSCASECMP])
71  GNULIB_MBSNCASECMP=0; AC_SUBST([GNULIB_MBSNCASECMP])
72  GNULIB_MBSPCASECMP=0; AC_SUBST([GNULIB_MBSPCASECMP])
73  GNULIB_MBSCASESTR=0;  AC_SUBST([GNULIB_MBSCASESTR])
74  GNULIB_MBSCSPN=0;     AC_SUBST([GNULIB_MBSCSPN])
75  GNULIB_MBSPBRK=0;     AC_SUBST([GNULIB_MBSPBRK])
76  GNULIB_MBSSPN=0;      AC_SUBST([GNULIB_MBSSPN])
77  GNULIB_MBSSEP=0;      AC_SUBST([GNULIB_MBSSEP])
78  GNULIB_MBSTOK_R=0;    AC_SUBST([GNULIB_MBSTOK_R])
79  GNULIB_STRERROR=0;    AC_SUBST([GNULIB_STRERROR])
80  GNULIB_STRERROR_R=0;  AC_SUBST([GNULIB_STRERROR_R])
81  GNULIB_STRSIGNAL=0;   AC_SUBST([GNULIB_STRSIGNAL])
82  GNULIB_STRVERSCMP=0;  AC_SUBST([GNULIB_STRVERSCMP])
83  HAVE_MBSLEN=0;        AC_SUBST([HAVE_MBSLEN])
84  dnl Assume proper GNU behavior unless another module says otherwise.
85  HAVE_FFSL=1;                  AC_SUBST([HAVE_FFSL])
86  HAVE_FFSLL=1;                 AC_SUBST([HAVE_FFSLL])
87  HAVE_MEMCHR=1;                AC_SUBST([HAVE_MEMCHR])
88  HAVE_DECL_MEMMEM=1;           AC_SUBST([HAVE_DECL_MEMMEM])
89  HAVE_MEMPCPY=1;               AC_SUBST([HAVE_MEMPCPY])
90  HAVE_DECL_MEMRCHR=1;          AC_SUBST([HAVE_DECL_MEMRCHR])
91  HAVE_RAWMEMCHR=1;             AC_SUBST([HAVE_RAWMEMCHR])
92  HAVE_STPCPY=1;                AC_SUBST([HAVE_STPCPY])
93  HAVE_STPNCPY=1;               AC_SUBST([HAVE_STPNCPY])
94  HAVE_STRCHRNUL=1;             AC_SUBST([HAVE_STRCHRNUL])
95  HAVE_DECL_STRDUP=1;           AC_SUBST([HAVE_DECL_STRDUP])
96  HAVE_DECL_STRNDUP=1;          AC_SUBST([HAVE_DECL_STRNDUP])
97  HAVE_DECL_STRNLEN=1;          AC_SUBST([HAVE_DECL_STRNLEN])
98  HAVE_STRPBRK=1;               AC_SUBST([HAVE_STRPBRK])
99  HAVE_STRSEP=1;                AC_SUBST([HAVE_STRSEP])
100  HAVE_STRCASESTR=1;            AC_SUBST([HAVE_STRCASESTR])
101  HAVE_DECL_STRTOK_R=1;         AC_SUBST([HAVE_DECL_STRTOK_R])
102  HAVE_DECL_STRERROR_R=1;       AC_SUBST([HAVE_DECL_STRERROR_R])
103  HAVE_DECL_STRSIGNAL=1;        AC_SUBST([HAVE_DECL_STRSIGNAL])
104  HAVE_STRVERSCMP=1;            AC_SUBST([HAVE_STRVERSCMP])
105  REPLACE_MEMCHR=0;             AC_SUBST([REPLACE_MEMCHR])
106  REPLACE_MEMMEM=0;             AC_SUBST([REPLACE_MEMMEM])
107  REPLACE_STPNCPY=0;            AC_SUBST([REPLACE_STPNCPY])
108  REPLACE_STRDUP=0;             AC_SUBST([REPLACE_STRDUP])
109  REPLACE_STRSTR=0;             AC_SUBST([REPLACE_STRSTR])
110  REPLACE_STRCASESTR=0;         AC_SUBST([REPLACE_STRCASESTR])
111  REPLACE_STRCHRNUL=0;          AC_SUBST([REPLACE_STRCHRNUL])
112  REPLACE_STRERROR=0;           AC_SUBST([REPLACE_STRERROR])
113  REPLACE_STRERROR_R=0;         AC_SUBST([REPLACE_STRERROR_R])
114  REPLACE_STRNCAT=0;            AC_SUBST([REPLACE_STRNCAT])
115  REPLACE_STRNDUP=0;            AC_SUBST([REPLACE_STRNDUP])
116  REPLACE_STRNLEN=0;            AC_SUBST([REPLACE_STRNLEN])
117  REPLACE_STRSIGNAL=0;          AC_SUBST([REPLACE_STRSIGNAL])
118  REPLACE_STRTOK_R=0;           AC_SUBST([REPLACE_STRTOK_R])
119  UNDEFINE_STRTOK_R=0;          AC_SUBST([UNDEFINE_STRTOK_R])
120])
121