Remove uneeded pthread-stubs dependency
--- a/configure
+++ b/configure
@@ -20827,7 +20827,7 @@ fi
 NEEDED="xau >= 0.99.2"
 case $host_os in
 linux*|darwin*|solaris*|dragonfly*|freebsd*) ;;
-     *) NEEDED="$NEEDED pthread-stubs" ;;
+     *) NEEDED="$NEEDED" ;;
 esac
 
 pkg_failed=no