153 lines
5.6 KiB
Text
153 lines
5.6 KiB
Text
# Check for fnmatch - serial 15. -*- coding: utf-8 -*-
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# Copyright (C) 2000-2007, 2009-2021 Free Software Foundation, Inc.
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# This file is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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# Autoconf defines AC_FUNC_FNMATCH, but that is obsolescent.
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# New applications should use the macros below instead.
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# Request a POSIX compliant fnmatch function.
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AC_DEFUN([gl_FUNC_FNMATCH_POSIX],
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[
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m4_divert_text([DEFAULTS], [gl_fnmatch_required=POSIX])
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AC_REQUIRE([gl_FNMATCH_H])
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AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
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gl_fnmatch_required_lowercase=`
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echo $gl_fnmatch_required | LC_ALL=C tr '[[A-Z]]' '[[a-z]]'
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`
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AC_CHECK_FUNCS_ONCE([fnmatch])
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if test $ac_cv_func_fnmatch = no; then
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HAVE_FNMATCH=0
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else
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gl_fnmatch_cache_var="gl_cv_func_fnmatch_${gl_fnmatch_required_lowercase}"
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AC_CACHE_CHECK([for working $gl_fnmatch_required fnmatch],
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[$gl_fnmatch_cache_var],
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[dnl Some versions of Solaris, SCO, and the GNU C Library
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dnl have a broken or incompatible fnmatch.
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dnl So we run a test program. If we are cross-compiling, take no chance.
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dnl Thanks to John Oleynick, François Pinard, and Paul Eggert for this
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dnl test.
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if test $gl_fnmatch_required = GNU; then
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gl_fnmatch_gnu_start=
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gl_fnmatch_gnu_end=
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else
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gl_fnmatch_gnu_start='#if 0'
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gl_fnmatch_gnu_end='#endif'
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fi
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AC_RUN_IFELSE(
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[AC_LANG_PROGRAM(
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[[#include <fnmatch.h>
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static int
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y (char const *pattern, char const *string, int flags)
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{
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return fnmatch (pattern, string, flags) == 0;
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}
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static int
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n (char const *pattern, char const *string, int flags)
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{
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return fnmatch (pattern, string, flags) == FNM_NOMATCH;
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}
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]],
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[[char const *Apat = 'A' < '\\\\' ? "[A-\\\\\\\\]" : "[\\\\\\\\-A]";
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char const *apat = 'a' < '\\\\' ? "[a-\\\\\\\\]" : "[\\\\\\\\-a]";
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static char const A_1[] = { 'A' - 1, 0 };
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static char const A01[] = { 'A' + 1, 0 };
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static char const a_1[] = { 'a' - 1, 0 };
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static char const a01[] = { 'a' + 1, 0 };
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static char const bs_1[] = { '\\\\' - 1, 0 };
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static char const bs01[] = { '\\\\' + 1, 0 };
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int result = 0;
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if (!n ("a*", "", 0))
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return 1;
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if (!y ("a*", "abc", 0))
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return 1;
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if (!y ("[/b", "[/b", 0)) /*"]]"*/ /* glibc Bugzilla bug 12378 */
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return 1;
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if (!n ("d*/*1", "d/s/1", FNM_PATHNAME))
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return 2;
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if (!y ("a\\\\bc", "abc", 0))
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return 3;
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if (!n ("a\\\\bc", "abc", FNM_NOESCAPE))
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return 3;
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if (!y ("*x", ".x", 0))
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return 4;
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if (!n ("*x", ".x", FNM_PERIOD))
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return 4;
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if (!y (Apat, "\\\\", 0))
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return 5;
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if (!y (Apat, "A", 0))
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return 5;
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if (!y (apat, "\\\\", 0))
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return 5;
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if (!y (apat, "a", 0))
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return 5;
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if (!(n (Apat, A_1, 0) == ('A' < '\\\\')))
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return 5;
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if (!(n (apat, a_1, 0) == ('a' < '\\\\')))
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return 5;
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if (!(y (Apat, A01, 0) == ('A' < '\\\\')))
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return 5;
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if (!(y (apat, a01, 0) == ('a' < '\\\\')))
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return 5;
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if (!(y (Apat, bs_1, 0) == ('A' < '\\\\')))
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return 5;
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if (!(y (apat, bs_1, 0) == ('a' < '\\\\')))
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return 5;
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if (!(n (Apat, bs01, 0) == ('A' < '\\\\')))
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return 5;
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if (!(n (apat, bs01, 0) == ('a' < '\\\\')))
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return 5;
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$gl_fnmatch_gnu_start
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if (!y ("xxXX", "xXxX", FNM_CASEFOLD))
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result |= 8;
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if (!y ("a++(x|yy)b", "a+xyyyyxb", FNM_EXTMATCH))
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result |= 16;
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if (!n ("d*/*1", "d/s/1", FNM_FILE_NAME))
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result |= 32;
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if (!y ("*", "x", FNM_FILE_NAME | FNM_LEADING_DIR))
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result |= 64;
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if (!y ("x*", "x/y/z", FNM_FILE_NAME | FNM_LEADING_DIR))
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result |= 64;
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if (!y ("*c*", "c/x", FNM_FILE_NAME | FNM_LEADING_DIR))
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result |= 64;
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$gl_fnmatch_gnu_end
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return result;
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]])],
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[eval "$gl_fnmatch_cache_var=yes"],
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[eval "$gl_fnmatch_cache_var=no"],
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[case "$host_os" in
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# Guess yes on musl systems.
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*-musl*) eval "$gl_fnmatch_cache_var=\"guessing yes\"" ;;
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# Guess no otherwise, even on glibc systems.
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*) eval "$gl_fnmatch_cache_var=\"guessing no\"" ;;
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esac
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])
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])
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eval "gl_fnmatch_result=\"\$$gl_fnmatch_cache_var\""
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case "$gl_fnmatch_result" in
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*yes) ;;
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*) REPLACE_FNMATCH=1 ;;
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esac
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fi
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if test $HAVE_FNMATCH = 0 || test $REPLACE_FNMATCH = 1; then
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gl_REPLACE_FNMATCH_H
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fi
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])
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# Request a POSIX compliant fnmatch function with GNU extensions.
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AC_DEFUN([gl_FUNC_FNMATCH_GNU],
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[
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m4_divert_text([INIT_PREPARE], [gl_fnmatch_required=GNU])
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AC_REQUIRE([gl_FUNC_FNMATCH_POSIX])
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])
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AC_DEFUN([gl_PREREQ_FNMATCH],
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[
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dnl Prerequisites of lib/fnmatch.c.
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AC_REQUIRE([AC_TYPE_MBSTATE_T])
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AC_CHECK_FUNCS_ONCE([mbsrtowcs])
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])
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