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-rw-r--r--m4/fnmatch.m4153
1 files changed, 153 insertions, 0 deletions
diff --git a/m4/fnmatch.m4 b/m4/fnmatch.m4
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+# Check for fnmatch - serial 15. -*- coding: utf-8 -*-
+
+# Copyright (C) 2000-2007, 2009-2022 Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# Autoconf defines AC_FUNC_FNMATCH, but that is obsolescent.
+# New applications should use the macros below instead.
+
+# Request a POSIX compliant fnmatch function.
+AC_DEFUN([gl_FUNC_FNMATCH_POSIX],
+[
+ m4_divert_text([DEFAULTS], [gl_fnmatch_required=POSIX])
+
+ AC_REQUIRE([gl_FNMATCH_H])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ gl_fnmatch_required_lowercase=`
+ echo $gl_fnmatch_required | LC_ALL=C tr '[[A-Z]]' '[[a-z]]'
+ `
+ AC_CHECK_FUNCS_ONCE([fnmatch])
+ if test $ac_cv_func_fnmatch = no; then
+ HAVE_FNMATCH=0
+ else
+ gl_fnmatch_cache_var="gl_cv_func_fnmatch_${gl_fnmatch_required_lowercase}"
+ AC_CACHE_CHECK([for working $gl_fnmatch_required fnmatch],
+ [$gl_fnmatch_cache_var],
+ [dnl Some versions of Solaris, SCO, and the GNU C Library
+ dnl have a broken or incompatible fnmatch.
+ dnl So we run a test program. If we are cross-compiling, take no chance.
+ dnl Thanks to John Oleynick, François Pinard, and Paul Eggert for this
+ dnl test.
+ if test $gl_fnmatch_required = GNU; then
+ gl_fnmatch_gnu_start=
+ gl_fnmatch_gnu_end=
+ else
+ gl_fnmatch_gnu_start='#if 0'
+ gl_fnmatch_gnu_end='#endif'
+ fi
+ AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[#include <fnmatch.h>
+ static int
+ y (char const *pattern, char const *string, int flags)
+ {
+ return fnmatch (pattern, string, flags) == 0;
+ }
+ static int
+ n (char const *pattern, char const *string, int flags)
+ {
+ return fnmatch (pattern, string, flags) == FNM_NOMATCH;
+ }
+ ]],
+ [[char const *Apat = 'A' < '\\\\' ? "[A-\\\\\\\\]" : "[\\\\\\\\-A]";
+ char const *apat = 'a' < '\\\\' ? "[a-\\\\\\\\]" : "[\\\\\\\\-a]";
+ static char const A_1[] = { 'A' - 1, 0 };
+ static char const A01[] = { 'A' + 1, 0 };
+ static char const a_1[] = { 'a' - 1, 0 };
+ static char const a01[] = { 'a' + 1, 0 };
+ static char const bs_1[] = { '\\\\' - 1, 0 };
+ static char const bs01[] = { '\\\\' + 1, 0 };
+ int result = 0;
+ if (!n ("a*", "", 0))
+ return 1;
+ if (!y ("a*", "abc", 0))
+ return 1;
+ if (!y ("[/b", "[/b", 0)) /*"]]"*/ /* glibc Bugzilla bug 12378 */
+ return 1;
+ if (!n ("d*/*1", "d/s/1", FNM_PATHNAME))
+ return 2;
+ if (!y ("a\\\\bc", "abc", 0))
+ return 3;
+ if (!n ("a\\\\bc", "abc", FNM_NOESCAPE))
+ return 3;
+ if (!y ("*x", ".x", 0))
+ return 4;
+ if (!n ("*x", ".x", FNM_PERIOD))
+ return 4;
+ if (!y (Apat, "\\\\", 0))
+ return 5;
+ if (!y (Apat, "A", 0))
+ return 5;
+ if (!y (apat, "\\\\", 0))
+ return 5;
+ if (!y (apat, "a", 0))
+ return 5;
+ if (!(n (Apat, A_1, 0) == ('A' < '\\\\')))
+ return 5;
+ if (!(n (apat, a_1, 0) == ('a' < '\\\\')))
+ return 5;
+ if (!(y (Apat, A01, 0) == ('A' < '\\\\')))
+ return 5;
+ if (!(y (apat, a01, 0) == ('a' < '\\\\')))
+ return 5;
+ if (!(y (Apat, bs_1, 0) == ('A' < '\\\\')))
+ return 5;
+ if (!(y (apat, bs_1, 0) == ('a' < '\\\\')))
+ return 5;
+ if (!(n (Apat, bs01, 0) == ('A' < '\\\\')))
+ return 5;
+ if (!(n (apat, bs01, 0) == ('a' < '\\\\')))
+ return 5;
+ $gl_fnmatch_gnu_start
+ if (!y ("xxXX", "xXxX", FNM_CASEFOLD))
+ result |= 8;
+ if (!y ("a++(x|yy)b", "a+xyyyyxb", FNM_EXTMATCH))
+ result |= 16;
+ if (!n ("d*/*1", "d/s/1", FNM_FILE_NAME))
+ result |= 32;
+ if (!y ("*", "x", FNM_FILE_NAME | FNM_LEADING_DIR))
+ result |= 64;
+ if (!y ("x*", "x/y/z", FNM_FILE_NAME | FNM_LEADING_DIR))
+ result |= 64;
+ if (!y ("*c*", "c/x", FNM_FILE_NAME | FNM_LEADING_DIR))
+ result |= 64;
+ $gl_fnmatch_gnu_end
+ return result;
+ ]])],
+ [eval "$gl_fnmatch_cache_var=yes"],
+ [eval "$gl_fnmatch_cache_var=no"],
+ [case "$host_os" in
+ # Guess yes on musl systems.
+ *-musl*) eval "$gl_fnmatch_cache_var=\"guessing yes\"" ;;
+ # Guess no otherwise, even on glibc systems.
+ *) eval "$gl_fnmatch_cache_var=\"guessing no\"" ;;
+ esac
+ ])
+ ])
+ eval "gl_fnmatch_result=\"\$$gl_fnmatch_cache_var\""
+ case "$gl_fnmatch_result" in
+ *yes) ;;
+ *) REPLACE_FNMATCH=1 ;;
+ esac
+ fi
+ if test $HAVE_FNMATCH = 0 || test $REPLACE_FNMATCH = 1; then
+ gl_REPLACE_FNMATCH_H
+ fi
+])
+
+# Request a POSIX compliant fnmatch function with GNU extensions.
+AC_DEFUN([gl_FUNC_FNMATCH_GNU],
+[
+ m4_divert_text([INIT_PREPARE], [gl_fnmatch_required=GNU])
+
+ AC_REQUIRE([gl_FUNC_FNMATCH_POSIX])
+])
+
+AC_DEFUN([gl_PREREQ_FNMATCH],
+[
+ dnl Prerequisites of lib/fnmatch.c.
+ AC_REQUIRE([AC_TYPE_MBSTATE_T])
+ AC_CHECK_FUNCS_ONCE([mbsrtowcs])
+])