build: trigger configure when GNUmakefile.in changed

diff --git a/Makefile.am b/Makefile.am
index 00a10f997a06b5f8dd528f296b8a5206ae7e9118..d76c2f1c08eecd1177e93118f22344188c31e563 100644 (file)
--- a/Makefile.am
+++ b/Makefile.am
@@ -15,6 +15,8 @@ extensions/%:
 install-exec-local:
        depmod -a || :;
 
+config.status: extensions/GNUmakefile.in
+
 .PHONY: tarball
 tarball:
        rm -Rf /tmp/xtables-addons-${PACKAGE_VERSION};