only export GCC_HONOUR_COPTS for the built-in toolchain, fixes missing-fhonour-copts warnings with external toolchains

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27771 3c298f89-4303-0410-b956-a3cf2f4a3e73

include/kernel.mk

@@ -14,7 +14,9 @@ ifeq ($(DUMP),1)
   BOARD?=<BOARD>
   LINUX_VERSION?=<LINUX_VERSION>
 else
+  ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
     export GCC_HONOUR_COPTS=s
+  endif
 
   LINUX_KMOD_SUFFIX=ko
 

rules.mk

@@ -124,6 +124,7 @@ LIBRPC_DEPENDS=+USE_UCLIBC:librpc
 ifndef DUMP
   ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN),)
     -include $(TOOLCHAIN_DIR)/info.mk
+    export GCC_HONOUR_COPTS:=0
     TARGET_CROSS:=$(if $(TARGET_CROSS),$(TARGET_CROSS),$(OPTIMIZE_FOR_CPU)-openwrt-linux$(if $(TARGET_SUFFIX),-$(TARGET_SUFFIX))-)
     TARGET_CFLAGS+= -fhonour-copts
     TARGET_CPPFLAGS+= -I$(TOOLCHAIN_DIR)/usr/include -I$(TOOLCHAIN_DIR)/include
@@ -160,7 +161,6 @@ endif
 
 export PATH:=$(TARGET_PATH)
 export STAGING_DIR
-export GCC_HONOUR_COPTS:=0
 export SH_FUNC:=. $(INCLUDE_DIR)/shell.sh;
 
 PKG_CONFIG:=$(STAGING_DIR_HOST)/bin/pkg-config