fix kernel-headers compile

SVN-Revision: 5781

toolchain/kernel-headers/Makefile

@@ -31,11 +31,13 @@ define Build/Configure/powerpc
 	mv $(PKG_BUILD_DIR)/include/asm-powerpc $(PKG_BUILD_DIR)/include/asm-ppc
 endef
 
-define Build/Configure
-	yes '' | $(MAKE) -C $(PKG_BUILD_DIR) \
+KMAKE := $(MAKE) -C $(PKG_BUILD_DIR) \
 		ARCH=$(LINUX_KARCH) \
-		CONFIG_SHELL=$(BASH) \
-		oldconfig include/linux/version.h include/asm
+		CONFIG_SHELL=$(BASH)
+
+define Build/Configure
+	yes '' | $(KMAKE) oldconfig
+	$(KMAKE) include/linux/version.h include/asm
 	$(call Build/Configure/$(ARCH))
 endef