-#serial 1
+# Check for fnmatch - serial 4.
-dnl Determine whether to add fnmatch.o to LIBOBJS and to
-dnl define fnmatch to rpl_fnmatch.
-dnl
-dnl If you use this macro in a package, you should
-dnl add the following two lines to acconfig.h:
-dnl /* Define to rpl_fnmatch if the replacement function should be used. */
-dnl #undef fnmatch
-dnl
+# Copyright (C) 2000-2007, 2009-2010 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.
-AC_DEFUN(jm_FUNC_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],
[
- AC_REQUIRE([AM_GLIBC])
- AC_FUNC_FNMATCH
- if test $ac_cv_func_fnmatch_works = no \
- && test $ac_cv_gnu_library = no; then
- LIBOBJS="$LIBOBJS fnmatch.o"
- AC_DEFINE_UNQUOTED(fnmatch, rpl_fnmatch)
+ m4_divert_text([DEFAULTS], [gl_fnmatch_required=POSIX])
+
+ dnl Persuade glibc <fnmatch.h> to declare FNM_CASEFOLD etc.
+ dnl This is only needed if gl_fnmatch_required = GNU. It would be possible
+ dnl to avoid this dependency for gl_FUNC_FNMATCH_POSIX by putting
+ dnl gl_FUNC_FNMATCH_GNU into a separate .m4 file.
+ AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+ FNMATCH_H=
+ gl_fnmatch_required_lowercase=`echo $gl_fnmatch_required | tr 'A-Z' 'a-z'`
+ gl_fnmatch_cache_var="gl_cv_func_fnmatch_${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 };
+ return
+ !(n ("a*", "", 0)
+ && y ("a*", "abc", 0)
+ && n ("d*/*1", "d/s/1", FNM_PATHNAME)
+ && y ("a\\\\bc", "abc", 0)
+ && n ("a\\\\bc", "abc", FNM_NOESCAPE)
+ && y ("*x", ".x", 0)
+ && n ("*x", ".x", FNM_PERIOD)
+ && y (Apat, "\\\\", 0) && y (Apat, "A", 0)
+ && y (apat, "\\\\", 0) && y (apat, "a", 0)
+ && n (Apat, A_1, 0) == ('A' < '\\\\')
+ && n (apat, a_1, 0) == ('a' < '\\\\')
+ && y (Apat, A01, 0) == ('A' < '\\\\')
+ && y (apat, a01, 0) == ('a' < '\\\\')
+ && y (Apat, bs_1, 0) == ('A' < '\\\\')
+ && y (apat, bs_1, 0) == ('a' < '\\\\')
+ && n (Apat, bs01, 0) == ('A' < '\\\\')
+ && n (apat, bs01, 0) == ('a' < '\\\\')
+ $gl_fnmatch_gnu_start
+ && y ("xxXX", "xXxX", FNM_CASEFOLD)
+ && y ("a++(x|yy)b", "a+xyyyyxb", FNM_EXTMATCH)
+ && n ("d*/*1", "d/s/1", FNM_FILE_NAME)
+ && y ("*", "x", FNM_FILE_NAME | FNM_LEADING_DIR)
+ && y ("x*", "x/y/z", FNM_FILE_NAME | FNM_LEADING_DIR)
+ && y ("*c*", "c/x", FNM_FILE_NAME | FNM_LEADING_DIR)
+ $gl_fnmatch_gnu_end
+ );
+ ]])],
+ [eval "$gl_fnmatch_cache_var=yes"],
+ [eval "$gl_fnmatch_cache_var=no"],
+ [eval "$gl_fnmatch_cache_var=\"guessing no\""])
+ ])
+ eval "gl_fnmatch_result=\"\$$gl_fnmatch_cache_var\""
+ if test "$gl_fnmatch_result" = yes; then
+ dnl Not strictly necessary. Only to avoid spurious leftover files if people
+ dnl don't do "make distclean".
+ rm -f "$gl_source_base/fnmatch.h"
+ else
+ FNMATCH_H=fnmatch.h
+ AC_LIBOBJ([fnmatch])
+ dnl We must choose a different name for our function, since on ELF systems
+ dnl a broken fnmatch() in libc.so would override our fnmatch() if it is
+ dnl compiled into a shared library.
+ AC_DEFINE_UNQUOTED([fnmatch], [${gl_fnmatch_required_lowercase}_fnmatch],
+ [Define to a replacement function name for fnmatch().])
+ dnl Prerequisites of lib/fnmatch.c.
+ AC_REQUIRE([AC_TYPE_MBSTATE_T])
+ AC_CHECK_DECLS([isblank], [], [], [#include <ctype.h>])
+ AC_CHECK_FUNCS_ONCE([btowc isblank iswctype mbsrtowcs mempcpy wmemchr wmemcpy wmempcpy])
+ AC_CHECK_HEADERS_ONCE([wctype.h])
fi
+ AC_SUBST([FNMATCH_H])
+])
+
+# 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])
])
projects / gnulib.git / blobdiff