| # Check for fnmatch - serial 15. -*- coding: utf-8 -*- |
| |
| # Copyright (C) 2000-2007, 2009-2021 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, Franรงois 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]) |
| ]) |