(_AC_LIBOBJ_FNMATCH): Check for btowc.

diff --git a/m4/fnmatch.m4 b/m4/fnmatch.m4
index 1b19d33..708f9e6 100644 (file)
--- a/m4/fnmatch.m4
+++ b/m4/fnmatch.m4
@@ -68,7 +68,7 @@ AC_DEFUN([_AC_LIBOBJ_FNMATCH],
 AC_REQUIRE([AC_FUNC_ALLOCA])dnl
 AC_REQUIRE([AC_TYPE_MBSTATE_T])dnl
 AC_CHECK_DECLS([getenv])
-AC_CHECK_FUNCS([mbsrtowcs mempcpy wmempcpy])
+AC_CHECK_FUNCS([btowc mbsrtowcs mempcpy wmempcpy])
 AC_CHECK_HEADERS([wchar.h wctype.h])
 AC_LIBOBJ([fnmatch])
 AC_CONFIG_LINKS([lib/fnmatch.h:lib/fnmatch_.h])