212 lines
8.5 KiB
Text
212 lines
8.5 KiB
Text
# fnmatch.m4
|
|
# serial 21
|
|
dnl Copyright (C) 2000-2007, 2009-2025 Free Software Foundation, Inc.
|
|
dnl This file is free software; the Free Software Foundation
|
|
dnl gives unlimited permission to copy and/or distribute it,
|
|
dnl with or without modifications, as long as this notice is preserved.
|
|
dnl This file is offered as-is, without any warranty.
|
|
|
|
# Check for fnmatch
|
|
|
|
# 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])
|
|
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>
|
|
#include <locale.h>
|
|
#include <stddef.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;
|
|
/* ==== Start of tests in the "C" locale ==== */
|
|
/* These are sanity checks. They all succeed on current platforms. */
|
|
if (!n ("a*", "", 0))
|
|
return 1;
|
|
if (!y ("a*", "abc", 0))
|
|
return 1;
|
|
if (!n ("d*/*1", "d/s/1", FNM_PATHNAME))
|
|
return 1;
|
|
if (!y ("a\\\\bc", "abc", 0))
|
|
return 1;
|
|
if (!n ("a\\\\bc", "abc", FNM_NOESCAPE))
|
|
return 1;
|
|
if (!y ("*x", ".x", 0))
|
|
return 1;
|
|
if (!n ("*x", ".x", FNM_PERIOD))
|
|
return 1;
|
|
/* glibc bug <https://sourceware.org/bugzilla/show_bug.cgi?id=361>
|
|
exists in glibc 2.3.3, fixed in glibc 2.5. */
|
|
if (!y (Apat, "\\\\", 0))
|
|
result |= 2;
|
|
if (!y (Apat, "A", 0))
|
|
result |= 2;
|
|
if (!y (apat, "\\\\", 0))
|
|
result |= 2;
|
|
if (!y (apat, "a", 0))
|
|
result |= 2;
|
|
if (!(n (Apat, A_1, 0) == ('A' < '\\\\')))
|
|
result |= 2;
|
|
if (!(n (apat, a_1, 0) == ('a' < '\\\\')))
|
|
result |= 2;
|
|
if (!(y (Apat, A01, 0) == ('A' < '\\\\')))
|
|
result |= 2;
|
|
if (!(y (apat, a01, 0) == ('a' < '\\\\')))
|
|
result |= 2;
|
|
if (!(y (Apat, bs_1, 0) == ('A' < '\\\\')))
|
|
result |= 2;
|
|
if (!(y (apat, bs_1, 0) == ('a' < '\\\\')))
|
|
result |= 2;
|
|
if (!(n (Apat, bs01, 0) == ('A' < '\\\\')))
|
|
result |= 2;
|
|
if (!(n (apat, bs01, 0) == ('a' < '\\\\')))
|
|
result |= 2;
|
|
/* glibc bug <https://sourceware.org/bugzilla/show_bug.cgi?id=12378>
|
|
exists in glibc 2.12, fixed in glibc 2.13. */
|
|
if (!y ("[/b", "[/b", 0)) /*"]]"*/
|
|
result |= 4;
|
|
/* glibc bug <https://sourceware.org/bugzilla/show_bug.cgi?id=17062>
|
|
is fixed in glibc 2.20.
|
|
glibc bugs <https://sourceware.org/bugzilla/show_bug.cgi?id=18032>
|
|
<https://sourceware.org/bugzilla/show_bug.cgi?id=18036>
|
|
are fixed in glibc 2.22.
|
|
These bugs are not easy to test for reliably (without mmap),
|
|
therefore test the glibc version. */
|
|
#if defined __GLIBC__
|
|
if (__GLIBC__ == 2 && __GLIBC_MINOR__ < 22)
|
|
result |= 4;
|
|
#endif
|
|
/* This test fails on FreeBSD 13.2, NetBSD 10.0, Cygwin 3.4.6. */
|
|
if (!y ("[[:alnum:]]", "a", 0))
|
|
result |= 8;
|
|
$gl_fnmatch_gnu_start /* ==== Start of GNU extensions tests ==== */
|
|
/* Sanity checks, mainly to check the presence of the FNM_* macros. */
|
|
if (!y ("xxXX", "xXxX", FNM_CASEFOLD))
|
|
result |= 64;
|
|
if (!y ("a++(x|yy)b", "a+xyyyyxb", FNM_EXTMATCH))
|
|
result |= 64;
|
|
if (!n ("d*/*1", "d/s/1", FNM_FILE_NAME))
|
|
result |= 64;
|
|
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;
|
|
$gl_fnmatch_gnu_end /* ==== End of GNU extensions tests ==== */
|
|
/* ==== End of tests in the "C" locale ==== */
|
|
/* ==== Start of tests that require a specific locale ==== */
|
|
/* This test fails on Solaris 11.4. */
|
|
if (setlocale (LC_ALL, "en_US.UTF-8") != NULL)
|
|
{
|
|
if (!n ("[!a-z]", "", 0))
|
|
result |= 16;
|
|
}
|
|
/* This test fails on NetBSD 10.0, Android 13. */
|
|
if (setlocale (LC_ALL, "C.UTF-8") != NULL)
|
|
{
|
|
if (!y ("x?y", "x\\303\\274y", 0))
|
|
result |= 32;
|
|
}
|
|
/* ==== End of tests that require a specific locale ==== */
|
|
return result;
|
|
]])],
|
|
[eval "$gl_fnmatch_cache_var=yes"],
|
|
[eval "$gl_fnmatch_cache_var=no"],
|
|
[case "$host_os" in
|
|
# Guess yes on musl systems.
|
|
*-musl* | midipix*) 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
|
|
dnl On AIX 7.2 in 32-bit mode, fnmatch()'s only POSIX compliance problem is
|
|
dnl that is does not support characters outside the Unicode BMP correctly.
|
|
dnl Test case: fnmatch ("x?y", "x\360\237\230\213y", 0) == 0
|
|
dnl This is due to wchar_t being only 16 bits wide.
|
|
AC_REQUIRE([gl_UCHAR_H])
|
|
if test $SMALL_WCHAR_T = 1; then
|
|
case "$host_os" in
|
|
cygwin*)
|
|
dnl On Cygwin < 3.5.0, the above $gl_fnmatch_result came out as 'no',
|
|
dnl On Cygwin >= 3.5.0, fnmatch supports all Unicode characters,
|
|
dnl despite wchar_t being only 16 bits wide (because internally it
|
|
dnl works on wint_t values).
|
|
;;
|
|
*)
|
|
REPLACE_FNMATCH=1
|
|
;;
|
|
esac
|
|
fi
|
|
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])
|
|
])
|