iptables: fix rebuild errors on configuration changes

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@48314 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/network/utils/iptables/Makefile b/package/network/utils/iptables/Makefile
index 626b252..e5bca40 100644 (file)
--- a/package/network/utils/iptables/Makefile
+++ b/package/network/utils/iptables/Makefile
@@ -448,6 +448,20 @@ MAKE_FLAGS := \
        KBUILD_OUTPUT="$(LINUX_DIR)" \
        BUILTIN_MODULES="$(patsubst ip6t_%,%,$(patsubst ipt_%,%,$(patsubst xt_%,%,$(IPT_BUILTIN) $(IPT_CONNTRACK-m) $(IPT_NAT-m))))"
 
+ifneq ($(wildcard $(PKG_BUILD_DIR)/.config_*),$(subst .configured_,.config_,$(STAMP_CONFIGURED)))
+  define Build/Configure/rebuild
+       $(FIND) $(PKG_BUILD_DIR) -name \*.o -or -name \*.\?o -or -name \*.a | $(XARGS) rm -f
+       rm -f $(PKG_BUILD_DIR)/.config_*
+       rm -f $(PKG_BUILD_DIR)/.configured_*
+       touch $(subst .configured_,.config_,$(STAMP_CONFIGURED))
+  endef
+endif
+
+define Build/Configure
+$(Build/Configure/rebuild)
+$(Build/Configure/Default)
+endef
+
 define Build/InstallDev
        $(INSTALL_DIR) $(1)/usr/include
        $(INSTALL_DIR) $(1)/usr/include/iptables