(_AC_LIBOBJ_FNMATCH): Also check for

btowc, to fix a portability bug with diffutils-2.8.2/lib/fnmatch.c
on Solaris 2.5.1.

diff --git a/lib/autoconf/functions.m4 b/lib/autoconf/functions.m4
index 453529527a0f714a9ac922ce3fc9b47db94731dd..1f02ff2cbc9df08d7dafa3adb9e153834fb44bb8 100644 (file)
--- a/lib/autoconf/functions.m4
+++ b/lib/autoconf/functions.m4
@@ -400,7 +400,7 @@ 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([$ac_config_libobj_dir/fnmatch.h:$ac_config_libobj_dir/fnmatch_.h])