AC_DEFUN([_AC_FUNC_FNMATCH_IF],
[AC_CACHE_CHECK(
[for working $1 fnmatch],
[$2],
[ AC_RUN_IFELSE(
[AC_LANG_PROGRAM(
[
],
[exit
(!(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)
&& m4_if([$1], [GNU],
[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)],
1)));])],
[$2=yes],
[$2=no],
[$2=cross])])
AS_IF([test $$2 = yes], [$3], [$4])
])
AC_DEFUN([_AC_LIBOBJ_FNMATCH],
[AC_REQUIRE([AC_C_CONST])AC_REQUIRE([AC_FUNC_ALLOCA])AC_REQUIRE([AC_TYPE_MBSTATE_T])AC_CHECK_DECLS([getenv])
AC_CHECK_FUNCS([btowc mbsrtowcs mempcpy wmemchr wmemcpy wmempcpy])
AC_CHECK_HEADERS([wchar.h wctype.h])
AC_LIBOBJ([fnmatch])
FNMATCH_H=fnmatch.h
])
AC_DEFUN([gl_FUNC_FNMATCH_POSIX],
[
FNMATCH_H=
_AC_FUNC_FNMATCH_IF([POSIX], [ac_cv_func_fnmatch_posix],
[rm -f lib/fnmatch.h],
[_AC_LIBOBJ_FNMATCH])
if test $ac_cv_func_fnmatch_posix != yes; then
AC_DEFINE([fnmatch], [posix_fnmatch],
[Define to a replacement function name for fnmatch().])
fi
AC_SUBST([FNMATCH_H])
])
AC_DEFUN([gl_FUNC_FNMATCH_GNU],
[
AC_REQUIRE([AC_GNU_SOURCE])
FNMATCH_H=
_AC_FUNC_FNMATCH_IF([GNU], [ac_cv_func_fnmatch_gnu],
[rm -f lib/fnmatch.h],
[_AC_LIBOBJ_FNMATCH])
if test $ac_cv_func_fnmatch_gnu != yes; then
AC_DEFINE([fnmatch], [gnu_fnmatch],
[Define to a replacement function name for fnmatch().])
fi
AC_SUBST([FNMATCH_H])
])