xtables-addons: adapt build to EXTERNAL_TOOLCHAIN

Commit 32aaaaa led to failures when openwrt ARCH did not match kernel
ARCH, and this may not be its only side-effect.

This restores the previous Build/Compile and Build/Install, using the
default ones only when using external toolchain; in this case, ARCH is
set to LINUX_KARCH.

Signed-off-by: Eneas U de Queiroz <cote2004-github@yahoo.com>

net/xtables-addons/Makefile

@@ -10,7 +10,7 @@ include $(INCLUDE_DIR)/kernel.mk
 
 PKG_NAME:=xtables-addons
 PKG_VERSION:=2.14
-PKG_RELEASE:=7
+PKG_RELEASE:=8
 PKG_HASH:=d215a9a8b8e66aae04b982fa2e1228e8a71e7dfe42320df99e34e5000cbdf152
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
@@ -41,11 +41,31 @@ CONFIGURE_ARGS+= \
 	--with-kbuild="$(LINUX_DIR)" \
 	--with-xtlibdir="/usr/lib/iptables"
 
-MAKE_FLAGS += \
+ifdef CONFIG_EXTERNAL_TOOLCHAIN
+MAKE_FLAGS:= \
+	$(patsubst ARCH=%,ARCH=$(LINUX_KARCH),$(MAKE_FLAGS)) \
 	DEPMOD="/bin/true"
 
-MAKE_INSTALL_FLAGS += \
+MAKE_INSTALL_FLAGS:= \
+	$(patsubst ARCH=%,ARCH=$(LINUX_KARCH),$(MAKE_FLAGS)) \
 	DEPMOD="/bin/true"
+else
+define Build/Compile
+	+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
+		$(KERNEL_MAKE_FLAGS) \
+		DESTDIR="$(PKG_INSTALL_DIR)" \
+		DEPMOD="/bin/true" \
+		all
+endef
+
+define Build/Install
+	$(MAKE) -C $(PKG_BUILD_DIR) \
+		$(KERNEL_MAKE_FLAGS) \
+		DESTDIR="$(PKG_INSTALL_DIR)" \
+		DEPMOD="/bin/true" \
+		install
+endef
+endif
 
 # 1: extension/module suffix used in package name
 # 2: extension/module display name used in package title/description