Commit | Line | Data |
---|---|---|
c0c3707f | 1 | # Check for fnmatch - serial 14. -*- coding: utf-8 -*- |
8690e634 | 2 | |
5df4cba6 | 3 | # Copyright (C) 2000-2007, 2009-2020 Free Software Foundation, Inc. |
8690e634 JK |
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 | # Autoconf defines AC_FUNC_FNMATCH, but that is obsolescent. | |
9 | # New applications should use the macros below instead. | |
10 | ||
11 | # Request a POSIX compliant fnmatch function. | |
12 | AC_DEFUN([gl_FUNC_FNMATCH_POSIX], | |
13 | [ | |
14 | m4_divert_text([DEFAULTS], [gl_fnmatch_required=POSIX]) | |
15 | ||
c0c3707f CB |
16 | AC_REQUIRE([gl_FNMATCH_H]) |
17 | AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles | |
8690e634 JK |
18 | gl_fnmatch_required_lowercase=` |
19 | echo $gl_fnmatch_required | LC_ALL=C tr '[[A-Z]]' '[[a-z]]' | |
20 | ` | |
c0c3707f CB |
21 | AC_CHECK_FUNCS_ONCE([fnmatch]) |
22 | if test $ac_cv_func_fnmatch = no; then | |
23 | HAVE_FNMATCH=0 | |
8690e634 | 24 | else |
c0c3707f CB |
25 | gl_fnmatch_cache_var="gl_cv_func_fnmatch_${gl_fnmatch_required_lowercase}" |
26 | AC_CACHE_CHECK([for working $gl_fnmatch_required fnmatch], | |
27 | [$gl_fnmatch_cache_var], | |
28 | [dnl Some versions of Solaris, SCO, and the GNU C Library | |
29 | dnl have a broken or incompatible fnmatch. | |
30 | dnl So we run a test program. If we are cross-compiling, take no chance. | |
31 | dnl Thanks to John Oleynick, François Pinard, and Paul Eggert for this | |
32 | dnl test. | |
33 | if test $gl_fnmatch_required = GNU; then | |
34 | gl_fnmatch_gnu_start= | |
35 | gl_fnmatch_gnu_end= | |
36 | else | |
37 | gl_fnmatch_gnu_start='#if 0' | |
38 | gl_fnmatch_gnu_end='#endif' | |
39 | fi | |
40 | AC_RUN_IFELSE( | |
41 | [AC_LANG_PROGRAM( | |
42 | [[#include <fnmatch.h> | |
43 | static int | |
44 | y (char const *pattern, char const *string, int flags) | |
45 | { | |
46 | return fnmatch (pattern, string, flags) == 0; | |
47 | } | |
48 | static int | |
49 | n (char const *pattern, char const *string, int flags) | |
50 | { | |
51 | return fnmatch (pattern, string, flags) == FNM_NOMATCH; | |
52 | } | |
53 | ]], | |
54 | [[char const *Apat = 'A' < '\\\\' ? "[A-\\\\\\\\]" : "[\\\\\\\\-A]"; | |
55 | char const *apat = 'a' < '\\\\' ? "[a-\\\\\\\\]" : "[\\\\\\\\-a]"; | |
56 | static char const A_1[] = { 'A' - 1, 0 }; | |
57 | static char const A01[] = { 'A' + 1, 0 }; | |
58 | static char const a_1[] = { 'a' - 1, 0 }; | |
59 | static char const a01[] = { 'a' + 1, 0 }; | |
60 | static char const bs_1[] = { '\\\\' - 1, 0 }; | |
61 | static char const bs01[] = { '\\\\' + 1, 0 }; | |
62 | int result = 0; | |
63 | if (!n ("a*", "", 0)) | |
64 | return 1; | |
65 | if (!y ("a*", "abc", 0)) | |
66 | return 1; | |
67 | if (!y ("[/b", "[/b", 0)) /*"]]"*/ /* glibc Bugzilla bug 12378 */ | |
68 | return 1; | |
69 | if (!n ("d*/*1", "d/s/1", FNM_PATHNAME)) | |
70 | return 2; | |
71 | if (!y ("a\\\\bc", "abc", 0)) | |
72 | return 3; | |
73 | if (!n ("a\\\\bc", "abc", FNM_NOESCAPE)) | |
74 | return 3; | |
75 | if (!y ("*x", ".x", 0)) | |
76 | return 4; | |
77 | if (!n ("*x", ".x", FNM_PERIOD)) | |
78 | return 4; | |
79 | if (!y (Apat, "\\\\", 0)) | |
80 | return 5; | |
81 | if (!y (Apat, "A", 0)) | |
82 | return 5; | |
83 | if (!y (apat, "\\\\", 0)) | |
84 | return 5; | |
85 | if (!y (apat, "a", 0)) | |
86 | return 5; | |
87 | if (!(n (Apat, A_1, 0) == ('A' < '\\\\'))) | |
88 | return 5; | |
89 | if (!(n (apat, a_1, 0) == ('a' < '\\\\'))) | |
90 | return 5; | |
91 | if (!(y (Apat, A01, 0) == ('A' < '\\\\'))) | |
92 | return 5; | |
93 | if (!(y (apat, a01, 0) == ('a' < '\\\\'))) | |
94 | return 5; | |
95 | if (!(y (Apat, bs_1, 0) == ('A' < '\\\\'))) | |
96 | return 5; | |
97 | if (!(y (apat, bs_1, 0) == ('a' < '\\\\'))) | |
98 | return 5; | |
99 | if (!(n (Apat, bs01, 0) == ('A' < '\\\\'))) | |
100 | return 5; | |
101 | if (!(n (apat, bs01, 0) == ('a' < '\\\\'))) | |
102 | return 5; | |
103 | $gl_fnmatch_gnu_start | |
104 | if (!y ("xxXX", "xXxX", FNM_CASEFOLD)) | |
105 | result |= 8; | |
106 | if (!y ("a++(x|yy)b", "a+xyyyyxb", FNM_EXTMATCH)) | |
107 | result |= 16; | |
108 | if (!n ("d*/*1", "d/s/1", FNM_FILE_NAME)) | |
109 | result |= 32; | |
110 | if (!y ("*", "x", FNM_FILE_NAME | FNM_LEADING_DIR)) | |
111 | result |= 64; | |
112 | if (!y ("x*", "x/y/z", FNM_FILE_NAME | FNM_LEADING_DIR)) | |
113 | result |= 64; | |
114 | if (!y ("*c*", "c/x", FNM_FILE_NAME | FNM_LEADING_DIR)) | |
115 | result |= 64; | |
116 | $gl_fnmatch_gnu_end | |
117 | return result; | |
118 | ]])], | |
119 | [eval "$gl_fnmatch_cache_var=yes"], | |
120 | [eval "$gl_fnmatch_cache_var=no"], | |
121 | [case "$host_os" in | |
122 | # Guess yes on musl systems. | |
123 | *-musl*) eval "$gl_fnmatch_cache_var=\"guessing yes\"" ;; | |
124 | # Guess no otherwise, even on glibc systems. | |
125 | *) eval "$gl_fnmatch_cache_var=\"guessing no\"" ;; | |
126 | esac | |
127 | ]) | |
128 | ]) | |
129 | eval "gl_fnmatch_result=\"\$$gl_fnmatch_cache_var\"" | |
130 | case "$gl_fnmatch_result" in | |
131 | *yes) ;; | |
132 | *) REPLACE_FNMATCH=1 ;; | |
133 | esac | |
134 | fi | |
135 | if test $HAVE_FNMATCH = 0 || test $REPLACE_FNMATCH = 1; then | |
136 | gl_REPLACE_FNMATCH_H | |
8690e634 | 137 | fi |
8690e634 JK |
138 | ]) |
139 | ||
140 | # Request a POSIX compliant fnmatch function with GNU extensions. | |
141 | AC_DEFUN([gl_FUNC_FNMATCH_GNU], | |
142 | [ | |
143 | m4_divert_text([INIT_PREPARE], [gl_fnmatch_required=GNU]) | |
144 | ||
145 | AC_REQUIRE([gl_FUNC_FNMATCH_POSIX]) | |
146 | ]) | |
147 | ||
148 | AC_DEFUN([gl_PREREQ_FNMATCH], | |
149 | [ | |
8690e634 JK |
150 | dnl Prerequisites of lib/fnmatch.c. |
151 | AC_REQUIRE([AC_TYPE_MBSTATE_T]) | |
152 | AC_CHECK_DECLS([isblank], [], [], [[#include <ctype.h>]]) | |
153 | AC_CHECK_FUNCS_ONCE([btowc isblank iswctype mbsrtowcs mempcpy wmemchr wmemcpy wmempcpy]) | |
154 | AC_CHECK_HEADERS_ONCE([wctype.h]) | |
155 | ]) |