winegcc: Use explicit library file name when loading cross libraries.

Signed-off-by: Alexandre Julliard <julliard@winehq.org>

tools/winegcc/winegcc.c

@@ -958,7 +958,7 @@ static void build(struct options* opts)
                 strarray_add(link_args, name);
                 break;
             case 'a':
-                if (strchr(name, '/'))
+                if (!opts->lib_suffix && strchr(name, '/'))
                 {
                     /* turn the path back into -Ldir -lfoo options
                      * this makes sure that we use the specified libs even