massive cleanup of toolchain/

git-svn-id: svn://svn.openwrt.org/openwrt/branches/buildroot-ng/openwrt@4038 3c298f89-4303-0410-b956-a3cf2f4a3e73

include/host-build.mk

@@ -0,0 +1,114 @@
+ifneq ($(strip $(PKG_CAT)),)
+  ifeq ($(PKG_CAT),unzip)
+    UNPACK=unzip -d $(PKG_BUILD_DIR) $(DL_DIR)/$(PKG_SOURCE)
+  else
+    UNPACK=$(PKG_CAT) $(DL_DIR)/$(PKG_SOURCE) | tar -C $(PKG_BUILD_DIR)/.. $(TAR_OPTIONS) -
+  endif
+  define Build/Prepare/Default
+  	$(UNPACK)
+	@if [ -d ./patches ]; then \
+		$(PATCH) $(PKG_BUILD_DIR) ./patches; \
+	fi
+  endef
+endif
+
+define Build/Prepare
+  $(call Build/Prepare/Default)
+endef
+
+define Build/Configure/Default
+	@(cd $(PKG_BUILD_DIR)/$(3); \
+	[ -x configure ] && \
+		$(2) \
+		CPPFLAGS="-I$(STAGING_DIR)/host/include" \
+		LDFLAGS="-L$(STAGING_DIR)/host/lib" \
+		./configure \
+		--target=$(GNU_TARGET_NAME) \
+		--host=$(GNU_TARGET_NAME) \
+		--build=$(GNU_HOST_NAME) \
+		--program-prefix="" \
+		--program-suffix="" \
+		--prefix=/usr \
+		--exec-prefix=/usr \
+		--bindir=/usr/bin \
+		--sbindir=/usr/sbin \
+		--libexecdir=/usr/lib \
+		--sysconfdir=/etc \
+		--datadir=/usr/share \
+		--localstatedir=/var \
+		--mandir=/usr/man \
+		--infodir=/usr/info \
+		$(DISABLE_NLS) \
+		$(1); \
+		true; \
+	)
+endef
+
+define Build/Configure
+  $(call Build/Configure/Default)
+endef
+
+define Build/Compile/Default
+	$(MAKE) -C $(PKG_BUILD_DIR) $(1)
+endef
+
+define Build/Compile
+  $(call Build/Compile/Default)
+endef
+
+		
+ifneq ($(strip $(PKG_SOURCE)),)
+  source: $(DL_DIR)/$(PKG_SOURCE)
+
+  $(DL_DIR)/$(PKG_SOURCE):
+	mkdir -p $(DL_DIR)
+	$(SCRIPT_DIR)/download.pl "$(DL_DIR)" "$(PKG_SOURCE)" "$(PKG_MD5SUM)" $(PKG_SOURCE_URL)
+
+  $(PKG_BUILD_DIR)/.prepared: $(DL_DIR)/$(PKG_SOURCE)
+endif
+
+define HostBuild
+  $(PKG_BUILD_DIR)/.prepared:
+	@-rm -rf $(PKG_BUILD_DIR)
+	@mkdir -p $(PKG_BUILD_DIR)
+	$(call Build/Prepare)
+	touch $$@
+
+  $(PKG_BUILD_DIR)/.configured: $(PKG_BUILD_DIR)/.prepared
+	$(call Build/Configure)
+	touch $$@
+
+  $(PKG_BUILD_DIR)/.built: $(PKG_BUILD_DIR)/.configured
+	$(call Build/Compile)
+	touch $$@
+
+  $(STAGING_DIR)/stampfiles/.host_$(PKG_NAME)-installed: $(PKG_BUILD_DIR)/.built
+	$(call Build/Install)
+	touch $$@
+	
+  ifdef Build/Install
+    install-targets: $(STAGING_DIR)/stampfiles/.host_$(PKG_NAME)-installed
+  endif
+
+  package-clean: FORCE
+	$(call Build/Clean)
+	$(call Build/Uninstall)
+	rm -f $(STAGING_DIR)/stampfiles/.host_$(PKG_NAME)-installed
+
+  source:
+  prepare: $(PKG_BUILD_DIR)/.prepared
+  configure: $(PKG_BUILD_DIR)/.configured
+
+  compile-targets: $(PKG_BUILD_DIR)/.built
+  compile: compile-targets
+
+  install-targets:
+  install: install-targets
+
+  clean-targets:
+  clean: FORCE
+	@$(MAKE) clean-targets
+	$(call Build/Clean)
+	rm -rf $(PKG_BUILD_DIR)
+
+endef

include/package.mk

@@ -201,14 +201,15 @@ define BuildPackage
 endef
 
 ifneq ($(strip $(PKG_CAT)),)
+  ifeq ($(PKG_CAT),unzip)
+    UNPACK=unzip -d $(PKG_BUILD_DIR) $(DL_DIR)/$(PKG_SOURCE)
+  else
+    UNPACK=$(PKG_CAT) $(DL_DIR)/$(PKG_SOURCE) | tar -C $(PKG_BUILD_DIR)/.. $(TAR_OPTIONS) -
+  endif
   define Build/Prepare/Default
-	@if [ "$(PKG_CAT)" = "unzip" ]; then \
-		unzip -d $(PKG_BUILD_DIR) $(DL_DIR)/$(PKG_SOURCE) ; \
-	else \
-		$(PKG_CAT) $(DL_DIR)/$(PKG_SOURCE) | tar -C $(PKG_BUILD_DIR)/.. $(TAR_OPTIONS) - ; \
-	fi						  
+  	$(UNPACK)
 	@if [ -d ./patches ]; then \
-		$(PATCH) $(PKG_BUILD_DIR) ./patches ; \
+		$(PATCH) $(PKG_BUILD_DIR) ./patches; \
 	fi
   endef
 endif

toolchain/Makefile

@@ -1,6 +1,6 @@
 # Main makefile for the toolchain
 include $(TOPDIR)/rules.mk
-TARGETS-y:=sed kernel-headers utils binutils gcc uClibc ipkg-utils libnotimpl squashfs jffs2 lzma
+TARGETS-y:=sed kernel-headers sstrip binutils gcc uClibc ipkg-utils libnotimpl squashfs jffs2 lzma
 TARGETS-$(CONFIG_GDB) += gdb
 
 TARGETS_DOWNLOAD:=$(patsubst %,%-source,$(TARGETS-y))
@@ -12,12 +12,13 @@ download: $(TARGETS_DOWNLOAD)
 install: $(TARGETS_INSTALL)
 clean: $(TARGETS_CLEAN)
 
-uClibc-prepare: kernel-headers-prepare sed-install utils-install
+kernel-headers-prepare: sed-install
+uClibc-prepare: kernel-headers-prepare sstrip-install
 binutils-prepare: uClibc-prepare
 gcc-prepare: binutils-install
-uClibc-compile: gcc-prepare
-gcc-compile: uClibc-install
-squashfs-compile: lzma-compile
+uClibc-compile: gcc-compile
+gcc-install: uClibc-install
+squashfs-compile: lzma-install
 
 TOOLCHAIN_STAMP_DIR:=$(STAGING_DIR)/stampfiles
 

toolchain/binutils/Makefile

@@ -1,105 +1,59 @@
 include $(TOPDIR)/rules.mk
 
-#############################################################
-#
-# build binutils for use on the host system
-#
-#############################################################
-BINUTILS_VERSION:=$(strip $(subst ",, $(CONFIG_BINUTILS_VERSION)))#"))
+PKG_NAME:=binutils
+PKG_VERSION:=$(strip $(subst ",, $(CONFIG_BINUTILS_VERSION)))#"))
 
-BINUTILS_SITE:=http://www.fr.kernel.org/pub/linux/devel/binutils \
-	       http://www.fi.kernel.org/pub/linux/devel/binutils \
-	       http://ftp.kernel.org/pub/linux/devel/binutils \
-	       http://www.de.kernel.org/pub/linux/devel/binutils
-
-BINUTILS_STABLE_SITE:=http://ftp.gnu.org/gnu/binutils/ \
+STABLE_SITE:=http://ftp.gnu.org/gnu/binutils/ \
 	ftp://gatekeeper.dec.com/pub/GNU/ \
         ftp://ftp.uu.net/archive/systems/gnu/ \
         ftp://ftp.eu.uu.net/pub/gnu/ \
         ftp://ftp.funet.fi/pub/gnu/prep/ \
         ftp://ftp.leo.org/pub/comp/os/unix/gnu/ 
 
+DEVEL_SITE:=http://www.fr.kernel.org/pub/linux/devel/binutils \
+	       http://www.fi.kernel.org/pub/linux/devel/binutils \
+	       http://ftp.kernel.org/pub/linux/devel/binutils \
+	       http://www.de.kernel.org/pub/linux/devel/binutils
+
 ifeq ($(BINUTILS_VERSION),2.16.1)
-BINUTILS_SITE:=$(BINUTILS_STABLE_SITE)
+PKG_SOURCE_URL:=$(STABLE_SITE)
+else
+PKG_SOURCE_URL:=$(DEVEL_SITE)
 endif
 
-BINUTILS_SOURCE:=binutils-$(BINUTILS_VERSION).tar.bz2
-BINUTILS_DIR:=$(TOOL_BUILD_DIR)/binutils-$(BINUTILS_VERSION)
-BINUTILS_CAT:=bzcat
+PKG_SOURCE:=binutils-$(PKG_VERSION).tar.bz2
+PKG_MD5SUM:=unknown
+PKG_BUILD_DIR:=$(TOOL_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
+PKG_CAT:=bzcat
 
-BINUTILS_DIR1:=$(TOOL_BUILD_DIR)/binutils-$(BINUTILS_VERSION)-build
+include $(INCLUDE_DIR)/host-build.mk
 
-$(DL_DIR)/$(BINUTILS_SOURCE):
-	mkdir -p $(DL_DIR)
-	$(SCRIPT_DIR)/download.pl $(DL_DIR) $(BINUTILS_SOURCE) x $(BINUTILS_SITE)
 
-$(BINUTILS_DIR)/.unpacked: $(DL_DIR)/$(BINUTILS_SOURCE)
-	mkdir -p $(TOOL_BUILD_DIR)
-	$(BINUTILS_CAT) $(DL_DIR)/$(BINUTILS_SOURCE) | tar -C $(TOOL_BUILD_DIR) $(TAR_OPTIONS) -
-	touch $(BINUTILS_DIR)/.unpacked
+define Build/Prepare
+	$(call Build/Prepare/Default)
+	if [ -d ./patches/$(PKG_VERSION) ]; then \
+		$(SCRIPT_DIR)/patch-kernel.sh $(PKG_BUILD_DIR) ./patches/$(PKG_VERSION); \
+	fi
+endef
 
-$(BINUTILS_DIR)/.patched: $(BINUTILS_DIR)/.unpacked
-	# Apply appropriate binutils patches.
-	$(SCRIPT_DIR)/patch-kernel.sh $(BINUTILS_DIR) ./all \*.patch
-	$(SCRIPT_DIR)/patch-kernel.sh $(BINUTILS_DIR) ./$(BINUTILS_VERSION) \*.patch
-	touch $(BINUTILS_DIR)/.patched
-
-$(BINUTILS_DIR1)/.configured: $(BINUTILS_DIR)/.patched
-	mkdir -p $(BINUTILS_DIR1)
-	(cd $(BINUTILS_DIR1); \
-		$(BINUTILS_DIR)/configure \
+define Build/Configure
+	(cd $(PKG_BUILD_DIR); \
+		./configure \
 		--prefix=$(STAGING_DIR) \
 		--build=$(GNU_HOST_NAME) \
 		--host=$(GNU_HOST_NAME) \
 		--target=$(REAL_GNU_TARGET_NAME) \
 		--disable-werror \
-		$(DISABLE_NLS) \
-		$(MULTILIB) \
-		$(SOFT_FLOAT_CONFIG_OPTION) );
-	touch $(BINUTILS_DIR1)/.configured
+		--disable-nls \
+	);
+endef
 
-$(BINUTILS_DIR1)/binutils/objdump: $(BINUTILS_DIR1)/.configured
-	$(MAKE) -C $(BINUTILS_DIR1) -j $(CONFIG_JLEVEL) all
-
-# Make install will put gettext data in staging_dir/share/locale.
-# Unfortunatey, it isn't configureable.
-$(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-ld: $(BINUTILS_DIR1)/binutils/objdump
-	$(MAKE) -C $(BINUTILS_DIR1) -j $(CONFIG_JLEVEL) install
-
-
-#############################################################
-#
-# build binutils for use on the target system
-#
-#############################################################
-BINUTILS_DIR2:=$(BUILD_DIR)/binutils-$(BINUTILS_VERSION)-target
-$(BINUTILS_DIR2)/.configured: $(BINUTILS_DIR)/.patched
-	mkdir -p $(BINUTILS_DIR2)
-	(cd $(BINUTILS_DIR2); \
-		PATH=$(TARGET_PATH) \
-		CFLAGS="$(TARGET_CFLAGS)" \
-		CFLAGS_FOR_BUILD="-O2 -g" \
-		$(BINUTILS_DIR)/configure \
-		--prefix=/usr \
-		--exec-prefix=/usr \
-		--build=$(GNU_HOST_NAME) \
-		--host=$(REAL_GNU_TARGET_NAME) \
-		--target=$(REAL_GNU_TARGET_NAME) \
-		$(DISABLE_NLS) \
-		$(MULTILIB) \
-		$(SOFT_FLOAT_CONFIG_OPTION) );
-	touch $(BINUTILS_DIR2)/.configured
-
-$(BINUTILS_DIR2)/binutils/objdump: $(BINUTILS_DIR2)/.configured
-	PATH=$(TARGET_PATH) \
-	$(MAKE) -C $(BINUTILS_DIR2) -j $(CONFIG_JLEVEL) all
-
-source: $(DL_DIR)/$(BINUTILS_SOURCE)
-prepare: $(BINUTILS_DIR)/.patched
-compile: $(BINUTILS_DIR1)/binutils/objdump
-install: $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-ld
-clean: FORCE
-	rm -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)*
-	rm -rf $(BINUTILS_DIR) $(BINUTILS_DIR1)
+define Build/Compile
+	$(MAKE) -C $(PKG_BUILD_DIR) -j $(CONFIG_JLEVEL) all
+endef
 
+define Build/Install
+	$(MAKE) -C $(PKG_BUILD_DIR) -j $(CONFIG_JLEVEL) install
+endef
 
+$(eval $(call HostBuild))

toolchain/gcc/Makefile

@@ -2,7 +2,7 @@
 #
 # Copyright (C) 2002-2003 Erik Andersen <andersen@uclibc.org>
 # Copyright (C) 2004 Manuel Novoa III <mjn3@uclibc.org>
-# Copyright (C) 2005 Felix Fietkau <openwrt@nbd.name>
+# Copyright (C) 2005-2006 Felix Fietkau <nbd@openwrt.org>
 #
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -20,68 +20,36 @@
 
 include $(TOPDIR)/rules.mk
 
-GCC_VERSION:=$(strip $(subst ",, $(CONFIG_GCC_VERSION)))#"))
+PKG_NAME:=gcc
+PKG_VERSION:=$(strip $(subst ",, $(CONFIG_GCC_VERSION)))#"))
 
-#GCC_SITE:=ftp://ftp.gnu.org/gnu/gcc/releases/gcc-$(GCC_VERSION)
-GCC_SITE:=ftp://ftp.fu-berlin.de/unix/languages/gcc/releases/gcc-$(GCC_VERSION) \
-	http://mirrors.rcn.net/pub/sourceware/gcc/releases/gcc-$(GCC_VERSION)
+PKG_SOURCE:=gcc-$(PKG_VERSION).tar.bz2
+PKG_MD5SUM:=unknown
+PKG_SOURCE_URL:=ftp://ftp.fu-berlin.de/unix/languages/gcc/releases/gcc-$(PKG_VERSION) \
+	http://mirrors.rcn.net/pub/sourceware/gcc/releases/gcc-$(PKG_VERSION) \
+	ftp://ftp.gnu.org/gnu/gcc/releases/gcc-$(PKG_VERSION)
+PKG_CAT:=bzcat
 
-GCC_SOURCE:=gcc-$(GCC_VERSION).tar.bz2
-GCC_DIR:=$(TOOL_BUILD_DIR)/gcc-$(GCC_VERSION)
-GCC_CAT:=bzcat
+PKG_BUILD_DIR:=$(TOOL_BUILD_DIR)/gcc-$(PKG_VERSION)
 
-#############################################################
-#
-# Setup some initial stuff
-#
-#############################################################
-
-ifeq ($(CONFIG_INSTALL_LIBGCJ),y)
-TARGET_LANGUAGES:=c,c++,java
-else
-ifeq ($(CONFIG_INSTALL_LIBSTDCPP),y)
-TARGET_LANGUAGES:=c,c++
-else
 TARGET_LANGUAGES:=c
+ifeq ($(CONFIG_INSTALL_LIBSTDCPP),y)
+TARGET_LANGUAGES:=$(TARGET_LANGUAGES),c++
 endif
+ifeq ($(CONFIG_INSTALL_LIBGCJ),y)
+TARGET_LANGUAGES:=$(TARGET_LANGUAGES),java
 endif
 
-#############################################################
-#
-# build the first pass gcc compiler
-#
-#############################################################
+include $(INCLUDE_DIR)/host-build.mk
 
-GCC_BUILD_DIR1:=$(TOOL_BUILD_DIR)/gcc-$(GCC_VERSION)-initial
+BUILD_DIR1:=$(TOOL_BUILD_DIR)/gcc-$(PKG_VERSION)-initial
+BUILD_DIR2:=$(TOOL_BUILD_DIR)/gcc-$(PKG_VERSION)-final
 
-$(DL_DIR)/$(GCC_SOURCE):
-	mkdir -p $(DL_DIR)
-	$(SCRIPT_DIR)/download.pl $(DL_DIR) $(GCC_SOURCE) x $(GCC_SITE)
 
-$(GCC_DIR)/.unpacked: $(DL_DIR)/$(GCC_SOURCE)
-	mkdir -p $(TOOL_BUILD_DIR)
-	$(GCC_CAT) $(DL_DIR)/$(GCC_SOURCE) | tar -C $(TOOL_BUILD_DIR) $(TAR_OPTIONS) -
-	touch $(GCC_DIR)/.unpacked
-
-$(GCC_DIR)/.patched: $(GCC_DIR)/.unpacked
-	# Apply any files named gcc-*.patch from the source directory to gcc
-	$(SCRIPT_DIR)/patch-kernel.sh $(GCC_DIR) ./$(GCC_VERSION) \*.patch
-	# Note: The soft float situation has improved considerably with gcc 3.4.x.
-	# We can dispense with the custom spec files, as well as libfloat for the arm case.
-	# However, we still need a patch for arm.  There's a similar patch for gcc 3.3.x
-	# which needs to be integrated so we can kill of libfloat for good.
-	$(SED) 's,\(version_string.. = "[0-9\.]*\).*\(";\),\1 (OpenWrt-2.0)\2,' $(GCC_DIR)/gcc/version.c
-	$(SED) 's,\(bug_report_url.. = "\).*\(";\),\1<URL:https://dev.openwrt.org/>\2,' $(GCC_DIR)/gcc/version.c
-	touch $(GCC_DIR)/.patched
-
-# The --without-headers option stopped working with gcc 3.0 and has never been
-# # fixed, so we need to actually have working C library header files prior to
-# # the step or libgcc will not build...
-
-$(GCC_BUILD_DIR1)/.configured: $(GCC_DIR)/.patched
-	mkdir -p $(GCC_BUILD_DIR1)
-	(cd $(GCC_BUILD_DIR1); rm -f config.cache; PATH=$(TARGET_PATH) \
-		$(GCC_DIR)/configure \
+define Stage1/Configure
+	mkdir -p $(BUILD_DIR1)
+	(cd $(BUILD_DIR1); rm -f config.cache; PATH=$(TARGET_PATH) \
+		$(PKG_BUILD_DIR)/configure \
 		--prefix=$(STAGING_DIR) \
 		--build=$(GNU_HOST_NAME) \
 		--host=$(GNU_HOST_NAME) \
@@ -92,41 +60,25 @@ $(GCC_BUILD_DIR1)/.configured: $(GCC_DIR)/.patched
 		--disable-__cxa_atexit \
 		--enable-target-optspace \
 		--with-gnu-ld \
-		$(DISABLE_NLS) \
-		$(MULTILIB) \
+		--disable-nls \
 	);
-	touch $(GCC_BUILD_DIR1)/.configured
+endef
+define Stage1/Compile
+	PATH=$(TARGET_PATH) $(MAKE) -C $(BUILD_DIR1) all-gcc
+endef
+define Stage1/Install
+	PATH=$(TARGET_PATH) $(MAKE) -C $(BUILD_DIR1) install-gcc
+endef
 
-$(GCC_BUILD_DIR1)/.compiled: $(GCC_BUILD_DIR1)/.configured
-	PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR1) all-gcc
-	touch $(GCC_BUILD_DIR1)/.compiled
-
-$(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gcc: $(GCC_BUILD_DIR1)/.compiled
-	PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR1) install-gcc
-
-#############################################################
-#
-# second pass compiler build.  Build the compiler targeting 
-# the newly built shared uClibc library.
-#
-#############################################################
-#
-# Sigh... I had to rework things because using --with-gxx-include-dir
-# causes issues with include dir search order for g++.  This seems to
-# have something to do with "path translations" and possibly doesn't
-# affect gcc-target.  However, I haven't tested gcc-target yet so no
-# guarantees.  mjn3
-
-GCC_BUILD_DIR2:=$(TOOL_BUILD_DIR)/gcc-$(GCC_VERSION)-final
-$(GCC_BUILD_DIR2)/.configured: $(GCC_DIR)/.patched $(STAGING_DIR)/lib/libc.a
-	mkdir -p $(GCC_BUILD_DIR2)
+define Stage2/Configure
+	mkdir -p $(BUILD_DIR2)
 	# Important!  Required for limits.h to be fixed.
 	rm -rf $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/sys-include
 	ln -sf ../include $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/sys-include
 	rm -rf $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/lib
 	ln -sf ../lib $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/lib
-	(cd $(GCC_BUILD_DIR2); rm -f config.cache; PATH=$(TARGET_PATH) \
-		$(GCC_DIR)/configure \
+	(cd $(BUILD_DIR2); rm -f config.cache; PATH=$(TARGET_PATH) \
+		$(PKG_BUILD_DIR)/configure \
 		--prefix=$(STAGING_DIR) \
 		--build=$(GNU_HOST_NAME) \
 		--host=$(GNU_HOST_NAME) \
@@ -136,18 +88,15 @@ $(GCC_BUILD_DIR2)/.configured: $(GCC_DIR)/.patched $(STAGING_DIR)/lib/libc.a
 		--disable-__cxa_atexit \
 		--enable-target-optspace \
 		--with-gnu-ld \
-		$(DISABLE_NLS) \
-		$(MULTILIB) \
+		--disable-nls \
 	);
-	touch $(GCC_BUILD_DIR2)/.configured
-
-$(GCC_BUILD_DIR2)/.compiled: $(GCC_BUILD_DIR2)/.configured
-	PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR2) all
-	touch $(GCC_BUILD_DIR2)/.compiled
-
-gcc-install: $(GCC_BUILD_DIR2)/.compiled FORCE
-	PATH=$(TARGET_PATH) $(MAKE) -C $(GCC_BUILD_DIR2) install
-	echo $(GCC_VERSION) > $(STAGING_DIR)/gcc_version
+endef
+define Stage2/Compile
+	PATH=$(TARGET_PATH) $(MAKE) -C $(BUILD_DIR2) all
+endef
+define Stage2/Install
+	PATH=$(TARGET_PATH) $(MAKE) -C $(BUILD_DIR2) install
+	echo $(PKG_VERSION) > $(STAGING_DIR)/gcc_version
 	# Set up the symlinks to enable lying about target name.
 	set -e; \
 	(cd $(STAGING_DIR); \
@@ -158,14 +107,36 @@ gcc-install: $(GCC_BUILD_DIR2)/.compiled FORCE
 		   	$(GNU_TARGET_NAME)$${app##$(REAL_GNU_TARGET_NAME)}; \
 		done; \
 	);
+endef
 
-source: $(DL_DIR)/$(GCC_SOURCE)
-prepare: $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gcc
-compile: gcc-install
-install:
-clean: gcc-clean
-	rm -rf $(GCC_DIR)
-	rm -rf $(GCC_BUILD_DIR1)
-	rm -rf $(GCC_BUILD_DIR2)
+define Build/Prepare
+	$(call Build/Prepare/Default)
+	$(SCRIPT_DIR)/patch-kernel.sh $(PKG_BUILD_DIR) ./patches/$(PKG_VERSION) \*.patch
+	$(SED) 's,\(version_string.. = "[0-9\.]*\).*\(";\),\1 (OpenWrt-2.0)\2,' $(PKG_BUILD_DIR)/gcc/version.c
+	$(SED) 's,\(bug_report_url.. = "\).*\(";\),\1<URL:https://dev.openwrt.org/>\2,' $(PKG_BUILD_DIR)/gcc/version.c
+endef
+
+define Build/Configure
+	$(call Stage1/Configure)
+endef
+
+define Build/Compile
+	$(call Stage1/Compile)
+	$(call Stage1/Install)
+endef
+
+define Build/Install
+	$(call Stage2/Configure)
+	$(call Stage2/Compile)
+	$(call Stage2/Install)
+endef
+
+define Build/Clean
+	rm -rf $(PKG_BUILD_DIR)
+	rm -rf $(BUILD_DIR1)
+	rm -rf $(BUILD_DIR2)
 	rm -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gc*
 	rm -f $(STAGING_DIR)/bin/$(REAL_GNU_TARGET_NAME)-c*
+endef
+
+$(eval $(call HostBuild))