build system cleanup/restructuring as described in http://lists.openwrt.org/pipermail/openwrt-devel/2007-August/001159.html

SVN-Revision: 8362
2007-08-07 00:04:25 +00:00 · 2007-08-07 00:04:25 +00:00 · c6bc77ea36
commit c6bc77ea36
parent 9882253827
45 changed files with 316 additions and 345 deletions
--- a/16
+++ b/16
@ -25,25 +25,27 @@ else
  include rules.mk
  include $(INCLUDE_DIR)/depends.mk
  include $(INCLUDE_DIR)/subdir.mk
-  include $(INCLUDE_DIR)/target.mk
  include target/Makefile
  include package/Makefile
  include tools/Makefile
  include toolchain/Makefile

 $(toolchain/stamp-compile): $(tools/stamp-compile)
-$(target/stamp-compile): $(toolchain/stamp-install) $(tools/stamp-install)
+$(target/stamp-compile): $(toolchain/stamp-install) $(tools/stamp-install) $(BUILD_DIR)/.prepared
 $(package/stamp-compile): $(target/stamp-compile)
 $(target/stamp-install): $(package/stamp-compile) $(package/stamp-install)

+$(BUILD_DIR)/.prepared: Makefile
+	@mkdir -p $$(dirname $@)
+	@touch $@
+
 clean: FORCE
-	rm -rf build_* bin tmp
+	rm -rf $(BUILD_DIR) $(BIN_DIR)
+	$(MAKE) target/linux/clean
+	rm -rf $(TMP_DIR)

 dirclean: clean
-	rm -rf staging_dir_* toolchain_build_* tool_build
-
-distclean: dirclean 
-	rm -rf dl .config*
+	rm -rf $(STAGING_DIR) $(STAGING_DIR_HOST) $(STAGING_DIR_TOOLCHAIN) $(BUILD_DIR_TOOLCHAIN) $(BUILD_DIR_HOST)

 # check prerequisites before starting to build
 prereq: $(package/stamp-prereq) $(target/stamp-prereq) ;
--- a/include/host-build.mk
+++ b/include/host-build.mk
@ -5,6 +5,9 @@
 # See /LICENSE for more information.
 #

+PKG_BUILD_DIR ?= $(BUILD_DIR_HOST)/$(PKG_NAME)$(if $(PKG_VERSION),-$(PKG_VERSION))
+PKG_INSTALL_DIR ?= $(PKG_BUILD_DIR)/host-install
+
 include $(INCLUDE_DIR)/host.mk
 include $(INCLUDE_DIR)/unpack.mk
 include $(INCLUDE_DIR)/depends.mk
@ -12,6 +15,8 @@ include $(INCLUDE_DIR)/depends.mk
 STAMP_PREPARED:=$(PKG_BUILD_DIR)/.prepared_$(shell find ${CURDIR} $(PKG_FILE_DEPEND) $(DEP_FINDPARAMS) | md5s)
 STAMP_CONFIGURED:=$(PKG_BUILD_DIR)/.configured
 STAMP_BUILT:=$(PKG_BUILD_DIR)/.built
+STAMP_INSTALLED:=$(STAGING_DIR_HOST)/stamp/.$(PKG_NAME)_installed
+
 override MAKEFLAGS=

 include $(INCLUDE_DIR)/quilt.mk
@ -33,24 +38,19 @@ define Build/Configure/Default
 	[ -x configure ] && \
 		$(CP) $(SCRIPT_DIR)/config.{guess,sub} $(PKG_BUILD_DIR)/$(3)/ && \
 		$(2) \
-		CPPFLAGS="-I$(STAGING_DIR)/host/include" \
-		LDFLAGS="-L$(STAGING_DIR)/host/lib" \
+		CPPFLAGS="$(HOST_CFLAGS)" \
+		LDFLAGS="$(HOST_LDFLAGS)" \
+		SHELL="$(BASH)" \
 		./configure \
-		--target=$(GNU_TARGET_NAME) \
-		--host=$(GNU_TARGET_NAME) \
+		--target=$(GNU_HOST_NAME) \
+		--host=$(GNU_HOST_NAME) \
 		--build=$(GNU_HOST_NAME) \
 		--program-prefix="" \
 		--program-suffix="" \
-		--prefix=/usr \
-		--exec-prefix=/usr \
-		--bindir=/usr/bin \
-		--sbindir=/usr/sbin \
-		--libexecdir=/usr/lib \
-		--sysconfdir=/etc \
-		--datadir=/usr/share \
-		--localstatedir=/var \
-		--mandir=/usr/man \
-		--infodir=/usr/info \
+		--prefix=$(STAGING_DIR_HOST) \
+		--exec-prefix=$(STAGING_DIR_HOST) \
+		--sysconfdir=$(STAGING_DIR_HOST)/etc \
+		--localstatedir=$(STAGING_DIR_HOST)/var \
 		$(DISABLE_NLS) \
 		$(1); \
 		true; \
@ -84,7 +84,7 @@ ifneq ($(if $(QUILT),,$(CONFIG_AUTOREBUILD)),)
  define HostBuild/Autoclean
    $(PKG_BUILD_DIR)/.dep_files: $(STAMP_PREPARED)
    $(call rdep,${CURDIR} $(PKG_FILE_DEPEND),$(STAMP_PREPARED))
-    $(if $(filter prepare,$(MAKECMDGOALS)),,$(call rdep,$(PKG_BUILD_DIR),$(STAMP_BUILT),$(PKG_BUILD_DIR)/.dep_files, -and -not -path "/.*" -and -not -path "*/ipkg*"))
+    $(if $(if $(Build/Compile),$(filter prepare,$(MAKECMDGOALS)),1),,$(call rdep,$(PKG_BUILD_DIR),$(STAMP_BUILT),$(PKG_BUILD_DIR)/.dep_files, -and -not -path "/.*" -and -not -path "*/ipkg*"))
  endef
 endif

@ -107,19 +107,19 @@ define HostBuild
 	$(call Build/Compile)
 	touch $$@

-  $(STAGING_DIR)/stampfiles/.host_$(PKG_NAME)-installed: $(STAMP_BUILT)
+  $(STAMP_INSTALLED): $(STAMP_BUILT)
 	$(call Build/Install)
 	mkdir -p $$(shell dirname $$@)
 	touch $$@
 	
  ifdef Build/Install
-    install: $(STAGING_DIR)/stampfiles/.host_$(PKG_NAME)-installed
+    install: $(STAMP_INSTALLED)
  endif

  package-clean: FORCE
 	$(call Build/Clean)
 	$(call Build/Uninstall)
-	rm -f $(STAGING_DIR)/stampfiles/.host_$(PKG_NAME)-installed
+	rm -f $(STAMP_INSTALLED) $(STAMP_BUILT)

  download:
  prepare: $(STAMP_PREPARED)
--- a/include/image.mk
+++ b/include/image.mk
@ -11,7 +11,7 @@ include $(INCLUDE_DIR)/host.mk

 override MAKEFLAGS=
 override MAKE:=$(SUBMAKE)
-KDIR:=$(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)
+KDIR=$(KERNEL_BUILD_DIR)

 ifneq ($(CONFIG_BIG_ENDIAN),y)
 JFFS2OPTS     :=  --pad --little-endian --squash
@ -40,27 +40,27 @@ ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
  ifeq ($(CONFIG_TARGET_ROOTFS_JFFS2),y)
    define Image/mkfs/jffs2/sub
 		# FIXME: removing this line will cause strange behaviour in the foreach loop below
-		$(STAGING_DIR)/bin/mkfs.jffs2 $(JFFS2OPTS) -e $(patsubst %k,%KiB,$(1)) -o $(KDIR)/root.jffs2-$(1) -d $(BUILD_DIR)/root
+		$(STAGING_DIR_HOST)/bin/mkfs.jffs2 $(JFFS2OPTS) -e $(patsubst %k,%KiB,$(1)) -o $(KDIR)/root.jffs2-$(1) -d $(TARGET_DIR)
 		$(call add_jffs2_mark,$(KDIR)/root.jffs2-$(1))
 		$(call Image/Build,jffs2-$(1))
    endef
    define Image/mkfs/jffs2
-		rm -rf $(BUILD_DIR)/root/jffs
+		rm -rf $(TARGET_DIR)/jffs
 		$(foreach SZ,$(JFFS2_BLOCKSIZE),$(call Image/mkfs/jffs2/sub,$(SZ)))
    endef
  endif
    
  ifeq ($(CONFIG_TARGET_ROOTFS_SQUASHFS),y)
    define Image/mkfs/squashfs
-		@mkdir -p $(BUILD_DIR)/root/jffs
-		$(STAGING_DIR)/bin/mksquashfs-lzma $(BUILD_DIR)/root $(KDIR)/root.squashfs -nopad -noappend -root-owned $(SQUASHFS_OPTS)
+		@mkdir -p $(TARGET_DIR)/jffs
+		$(STAGING_DIR_HOST)/bin/mksquashfs-lzma $(TARGET_DIR) $(KDIR)/root.squashfs -nopad -noappend -root-owned $(SQUASHFS_OPTS)
 		$(call Image/Build,squashfs)
    endef
  endif
    
  ifeq ($(CONFIG_TARGET_ROOTFS_TGZ),y)
    define Image/mkfs/tgz
-		$(TAR) -zcf $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-rootfs.tgz --owner=root --group=root -C $(BUILD_DIR)/root/ .
+		$(TAR) -zcf $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-rootfs.tgz --owner=root --group=root -C $(TARGET_DIR)/ .
    endef
  endif
 else
@ -75,18 +75,18 @@ ifeq ($(CONFIG_TARGET_ROOTFS_EXT2FS),y)
  E2SIZE=$(shell echo $$(($(CONFIG_TARGET_ROOTFS_FSPART)*1024)))
  
  define Image/mkfs/ext2
-		$(STAGING_DIR)/bin/genext2fs -U -b $(E2SIZE) -I $(CONFIG_TARGET_ROOTFS_MAXINODE) -d $(BUILD_DIR)/root/ $(KDIR)/root.ext2
+		$(STAGING_DIR_HOST)/bin/genext2fs -U -b $(E2SIZE) -I $(CONFIG_TARGET_ROOTFS_MAXINODE) -d $(TARGET_DIR)/ $(KDIR)/root.ext2
 		$(call Image/Build,ext2)
  endef
 endif


 define Image/mkfs/prepare/default
-	find $(BUILD_DIR)/root -type f -not -perm +0100 -not -name 'ssh_host*' | $(XARGS) chmod 0644
-	find $(BUILD_DIR)/root -type f -perm +0100 | $(XARGS) chmod 0755
-	find $(BUILD_DIR)/root -type d | $(XARGS) chmod 0755
-	mkdir -p $(BUILD_DIR)/root/tmp
-	chmod 0777 $(BUILD_DIR)/root/tmp
+	find $(TARGET_DIR) -type f -not -perm +0100 -not -name 'ssh_host*' | $(XARGS) chmod 0644
+	find $(TARGET_DIR) -type f -perm +0100 | $(XARGS) chmod 0755
+	find $(TARGET_DIR) -type d | $(XARGS) chmod 0755
+	$(INSTALL_DIR) $(TARGET_DIR)/tmp
+	chmod 0777 $(TARGET_DIR)/tmp
 endef

 define Image/mkfs/prepare
--- a/include/kernel-build.mk
+++ b/include/kernel-build.mk
@ -167,6 +167,8 @@ $(eval $(call shexport,Target/Description))
 download: $(DL_DIR)/$(LINUX_SOURCE)
 prepare: $(STAMP_CONFIGURED)
 compile: $(LINUX_DIR)/.modules
+	$(MAKE) -C image compile
+
 oldconfig menuconfig: $(STAMP_PREPARED) FORCE
 	$(call Kernel/Configure)
 	$(SCRIPT_DIR)/config.pl '+' $(GENERIC_LINUX_CONFIG) $(LINUX_CONFIG) > $(LINUX_DIR)/.config
--- a/include/kernel-defaults.mk
+++ b/include/kernel-defaults.mk
@ -67,7 +67,7 @@ ifeq ($(KERNEL),2.6)
    define Kernel/SetInitramfs
 		mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
 		grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
-		echo 'CONFIG_INITRAMFS_SOURCE="../../root"' >> $(LINUX_DIR)/.config
+		echo 'CONFIG_INITRAMFS_SOURCE="$(TARGET_DIR)"' >> $(LINUX_DIR)/.config
 		echo 'CONFIG_INITRAMFS_ROOT_UID=0' >> $(LINUX_DIR)/.config
 		echo 'CONFIG_INITRAMFS_ROOT_GID=0' >> $(LINUX_DIR)/.config
    endef
@ -75,7 +75,7 @@ ifeq ($(KERNEL),2.6)
    define Kernel/SetInitramfs
 		mv $(LINUX_DIR)/.config $(LINUX_DIR)/.config.old
 		grep -v INITRAMFS $(LINUX_DIR)/.config.old > $(LINUX_DIR)/.config
-		rm -f $(BUILD_DIR)/root/init
+		rm -f $(TARGET_DIR)/init
 		echo 'CONFIG_INITRAMFS_SOURCE=""' >> $(LINUX_DIR)/.config
    endef
  endif
--- a/include/kernel.mk
+++ b/include/kernel.mk
@ -30,9 +30,9 @@ else

  KERNEL_PATCHVER:=$(shell echo $(LINUX_VERSION) | cut -d. -f1,2,3 | cut -d- -f1)
  PLATFORM_DIR := $(TOPDIR)/target/linux/$(BOARD)-$(KERNEL)
-  PATCH_DIR := ./patches$(shell [ -d "./patches-$(KERNEL_PATCHVER)" ] && printf -- "-$(KERNEL_PATCHVER)" || true )
-  KERNEL_BUILD_DIR:=$(BUILD_DIR)/linux-$(KERNEL)-$(BOARD)
-  LINUX_DIR := $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
+  PATCH_DIR ?= ./patches$(shell [ -d "./patches-$(KERNEL_PATCHVER)" ] && printf -- "-$(KERNEL_PATCHVER)" || true )
+  KERNEL_BUILD_DIR ?= $(BUILD_DIR_BASE)/linux-$(KERNEL)-$(BOARD)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
+  LINUX_DIR ?= $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)

  MODULES_SUBDIR:=lib/modules/$(LINUX_VERSION)
  TARGET_MODULES_DIR := $(LINUX_TARGET_DIR)/$(MODULES_SUBDIR)
--- a/include/package.mk
+++ b/include/package.mk
@ -9,6 +9,7 @@ all: $(if $(DUMP),dumpinfo,compile)

 PKG_BUILD_DIR ?= $(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
 PKG_INSTALL_DIR ?= $(PKG_BUILD_DIR)/ipkg-install
+PKG_MD5SUM ?= unknown

 include $(INCLUDE_DIR)/prereq.mk
 include $(INCLUDE_DIR)/host.mk
--- a/include/subdir.mk
+++ b/include/subdir.mk
@ -37,7 +37,7 @@ endef
 # Parameters: <subdir> <name> <target>
 define stampfile
  $(1)/stamp-$(3):=$(STAGING_DIR)/stampfiles/.$(2)_$(3)
-  $(if __rdep_$(1),,
+  $(if $(__rdep_$(1)),,
    $(call rdep,$(1),$$($(1)/stamp-$(3)),)
    __rdep_$(1):=1
  )
--- a/include/toplevel.mk
+++ b/include/toplevel.mk
@ -94,7 +94,7 @@ download: .config FORCE
 	$(MAKE) -j1 package/download
 	$(MAKE) -j1 target/download

-clean dirclean distclean:
+clean dirclean:
 	@$(MAKE) $@ 

 prereq:: .config
@ -118,6 +118,9 @@ symlinkclean:
 	-find package -type l | xargs rm -f
 	rm -rf tmp

+distclean:
+	rm -rf tmp build_dir staging_dir dl .config*
+
 ifeq ($(findstring v,$(DEBUG)),)
  .SILENT: symlinkclean clean dirclean distclean config-clean download help tmpinfo-clean .config scripts/config/mconf scripts/config/conf menuconfig tmp/.prereq-build tmp/.prereq-package tmp/.prereq-target prepare-tmpinfo
 endif
--- a/package/Makefile
+++ b/package/Makefile
@ -17,23 +17,23 @@ $(curdir)/builddirs-install:=. $(sort $(package-y))
 $(curdir)/install:=$(curdir)/install-cleanup

 $(curdir)/cleanup: $(TMP_DIR)/.build
-	rm -rf $(BUILD_DIR)/root
+	rm -rf $(TARGET_DIR)

 $(curdir)/rootfs-prepare: $(TMP_DIR)/.build
 	@if [ -d $(TOPDIR)/files ]; then \
-		$(CP) $(TOPDIR)/files/. $(BUILD_DIR)/root; \
+		$(CP) $(TOPDIR)/files/. $(TARGET_DIR); \
 	fi
-	@mkdir -p $(BUILD_DIR)/root/etc/rc.d
+	@mkdir -p $(TARGET_DIR)/etc/rc.d
 	@( \
-		cd $(BUILD_DIR)/root; \
+		cd $(TARGET_DIR); \
 		for script in ./etc/init.d/*; do \
 			grep '#!/bin/sh /etc/rc.common' $$script >/dev/null || continue; \
-			IPKG_INSTROOT=$(BUILD_DIR)/root $(which bash) ./etc/rc.common $$script enable; \
+			IPKG_INSTROOT=$(TARGET_DIR) $(which bash) ./etc/rc.common $$script enable; \
 		done || true \
 	)
-	@-find $(BUILD_DIR)/root -name CVS   | $(XARGS) rm -rf
-	@-find $(BUILD_DIR)/root -name .svn  | $(XARGS) rm -rf
-	@-find $(BUILD_DIR)/root -name '.#*' | $(XARGS) rm -f
+	@-find $(TARGET_DIR) -name CVS   | $(XARGS) rm -rf
+	@-find $(TARGET_DIR) -name .svn  | $(XARGS) rm -rf
+	@-find $(TARGET_DIR) -name '.#*' | $(XARGS) rm -f

 $(curdir)/index: FORCE
 	@(cd $(PACKAGE_DIR); $(SCRIPT_DIR)/ipkg-make-index.sh . > Packages)
--- a/package/base-files/Makefile
+++ b/package/base-files/Makefile
@ -23,9 +23,7 @@ include $(INCLUDE_DIR)/package.mk

 ifneq ($(DUMP),1)
  TARGET:=-$(BOARD)-$(KERNEL)
-  UCLIBC_VERSION:=${shell cat $(STAGING_DIR)/uclibc_version 2>/dev/null}
-  UCLIBC_EXTRA_VERSION:=${shell cat $(STAGING_DIR)/uclibc_extra_version 2>/dev/null}
-  LIBGCC_VERSION:=${shell cat $(STAGING_DIR)/gcc_version 2>/dev/null}
+  LIBGCC_VERSION:=$(GCC_VERSION)
 else
  UCLIBC_VERSION:=<UCLIBC_VERSION>
  LIBGCC_VERSION:=<LIBGCC_VERSION>
@ -92,7 +90,7 @@ define Package/uclibc/Default
  CATEGORY:=Base system
  DEPENDS:=@!NATIVE_TOOLCHAIN
  URL:=http://uclibc.org/
-  VERSION:=$(UCLIBC_VERSION)-$(PKG_RELEASE)
+  VERSION:=$(UCLIBC_VERSION)$(UCLIBC_PATCHVER)-$(PKG_RELEASE)
 endef

 define Package/libpthread
@ -158,43 +156,43 @@ endef

 define Package/libgcc/install
 	$(INSTALL_DIR) $(1)/lib
-	$(CP) $(STAGING_DIR)/lib/libgcc_s.so.* $(1)/lib/
+	$(CP) $(TOOLCHAIN_DIR)/lib/libgcc_s.so.* $(1)/lib/
 endef

 ifeq ($(word 1,$(subst ., ,$(LIBGCC_VERSION))),4)
  define Package/libssp/install
 	$(INSTALL_DIR) $(1)/lib
-	$(CP) $(STAGING_DIR)/lib/libssp.so.* $(1)/lib/
+	$(CP) $(TOOLCHAIN_DIR)/lib/libssp.so.* $(1)/lib/
  endef
 endif

 define Package/libstdcpp/install
 	$(INSTALL_DIR) $(1)/lib
-	$(CP) $(STAGING_DIR)/lib/libstdc++.so.* $(1)/lib/
+	$(CP) $(TOOLCHAIN_DIR)/lib/libstdc++.so.* $(1)/lib/
 endef

 define Package/libpthread/install
 	$(INSTALL_DIR) $(1)/lib
-	$(CP) $(STAGING_DIR)/lib/libpthread.so.* $(1)/lib/
-	$(CP) $(STAGING_DIR)/lib/libpthread-$(UCLIBC_VERSION).so $(1)/lib/
+	$(CP) $(TOOLCHAIN_DIR)/lib/libpthread.so.* $(1)/lib/
+	$(CP) $(TOOLCHAIN_DIR)/lib/libpthread-$(UCLIBC_VERSION).so $(1)/lib/
 endef

 define Package/uclibc/install
 	$(INSTALL_DIR) $(1)/lib
 	for file in ld-uClibc libc libcrypt libdl libm libnsl libresolv librt libuClibc libutil; do \
-		$(CP) $(STAGING_DIR)/lib/$$$$file.so.* $(1)/lib/; \
-		$(CP) $(STAGING_DIR)/lib/$$$$file-$(UCLIBC_VERSION).so $(1)/lib/; \
+		$(CP) $(TOOLCHAIN_DIR)/lib/$$$$file.so.* $(1)/lib/; \
+		$(CP) $(TOOLCHAIN_DIR)/lib/$$$$file-$(UCLIBC_VERSION).so $(1)/lib/; \
 	done
 endef

 define Package/ldd/install
 	$(INSTALL_DIR) $(1)/bin/
-	$(CP) $(TOOLCHAIN_BUILD_DIR)/uClibc-$(UCLIBC_EXTRA_VERSION)/utils/ldd $(1)/bin/
+	$(CP) $(TOOLCHAIN_DIR)/utils/ldd $(1)/bin/
 endef

 define Package/ldconfig/install
 	$(INSTALL_DIR) $(1)/bin/
-	$(CP) $(TOOLCHAIN_BUILD_DIR)/uClibc-$(UCLIBC_EXTRA_VERSION)/utils/ldconfig $(1)/bin/
+	$(CP) $(TOOLCHAIN_DIR)/utils/ldconfig $(1)/bin/
 endef

 ifneq ($(DUMP),1)
--- a/package/bridge/Makefile
+++ b/package/bridge/Makefile
@ -18,6 +18,7 @@ PKG_MD5SUM:=9b7dc52656f5cbec846a7ba3299f73bd

 PKG_BUILD_DIR:=$(BUILD_DIR)/bridge-utils-$(PKG_VERSION)

+include $(INCLUDE_DIR)/kernel.mk
 include $(INCLUDE_DIR)/package.mk

 define Package/bridge
--- a/rules.mk
+++ b/rules.mk
@ -10,55 +10,63 @@ ifeq ($(DUMP),)
 endif
 include $(TOPDIR)/include/verbose.mk

+TMP_DIR:=$(TOPDIR)/tmp
+
+include $(TOPDIR)/include/target.mk
+
 export SHELL=/usr/bin/env bash -c '. $(TOPDIR)/include/shell.sh; eval "$$2"' --

-ARCH:=$(strip $(subst ",, $(CONFIG_ARCH)))
-TARGET_OPTIMIZATION:=$(strip $(subst ",, $(CONFIG_TARGET_OPTIMIZATION)))
-BUILD_DIR_SUFFIX:=$(strip $(subst ",, $(CONFIG_BUILD_SUFFIX)))
-WGET:=$(strip $(subst ",, $(CONFIG_WGET)))
-#"))"))")) # fix vim's broken syntax highlighting
+define qstrip
+$(strip $(subst ",,$(1)))
+endef
+#"))
+
+ARCH:=$(call qstrip,$(CONFIG_ARCH))
+TARGET_OPTIMIZATION:=$(call qstrip,$(CONFIG_TARGET_OPTIMIZATION))
+BUILD_SUFFIX:=$(call qstrip,$(CONFIG_BUILD_SUFFIX))
+GCCV:=$(call qstrip,$(CONFIG_GCC_VERSION))

 OPTIMIZE_FOR_CPU:=$(ARCH)

-# DIRECTORIES #
-
 DL_DIR:=$(TOPDIR)/dl
+BIN_DIR:=$(TOPDIR)/bin
 INCLUDE_DIR:=$(TOPDIR)/include
 SCRIPT_DIR:=$(TOPDIR)/scripts
-TOOL_BUILD_DIR:=$(TOPDIR)/tool_build
-TOOLCHAIN_BUILD_DIR:=$(TOPDIR)/toolchain_build_$(ARCH)
-STAGING_DIR:=$(TOPDIR)/staging_dir_$(ARCH)
-BIN_DIR:=$(TOPDIR)/bin
-PACKAGE_DIR:=$(BIN_DIR)/packages
-IPKG_TARGET_DIR:=$(PACKAGE_DIR)
-BUILD_DIR:=$(TOPDIR)/build_$(ARCH)$(BUILD_DIR_SUFFIX)
-TMP_DIR:=$(TOPDIR)/tmp
+BUILD_DIR_BASE:=$(TOPDIR)/build_dir
+BUILD_DIR:=$(BUILD_DIR_BASE)/$(ARCH)$(if $(BUILD_SUFFIX),_$(BUILD_SUFFIX))
+BUILD_DIR_HOST:=$(BUILD_DIR_BASE)/host
+BUILD_DIR_TOOLCHAIN:=$(BUILD_DIR_BASE)/toolchain-$(ARCH)
+STAGING_DIR:=$(TOPDIR)/staging_dir/$(ARCH)
+STAGING_DIR_HOST:=$(TOPDIR)/staging_dir/host
+TOOLCHAIN_DIR:=$(TOPDIR)/staging_dir/toolchain-$(ARCH)_gcc$(GCCV)
+PACKAGE_DIR:=$(BIN_DIR)/packages/$(TARGET)
 STAMP_DIR:=$(BUILD_DIR)/stamp
-TARGET_DIR:=$(BUILD_DIR)/root
+STAMP_DIR_HOST=$(BUILD_DIR_HOST)/stamp
+TARGET_DIR:=$(BUILD_DIR)/root-$(BOARD)
 IPKG_STATE_DIR:=$(TARGET_DIR)/usr/lib/ipkg

 ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
+  -include $(TOOLCHAIN_DIR)/info.mk
  REAL_GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux-uclibc
  GNU_TARGET_NAME=$(OPTIMIZE_FOR_CPU)-linux
-  TARGET_CROSS:=$(OPTIMIZE_FOR_CPU)-linux-uclibc-
+  TARGET_CROSS?=$(OPTIMIZE_FOR_CPU)-linux-uclibc-
 endif

-IMAGE:=$(BUILD_DIR)/root_fs_$(ARCH)
-
-TARGET_PATH:=$(STAGING_DIR)/usr/sbin:$(STAGING_DIR)/usr/bin:$(STAGING_DIR)/bin:$(PATH)
+TARGET_PATH:=$(TOOLCHAIN_DIR)/bin:$(STAGING_DIR_HOST)/bin:$(PATH)
 TARGET_CFLAGS:=$(TARGET_OPTIMIZATION) -fhonour-copts

 export PATH:=$(TARGET_PATH)

-LINUX_DIR:=$(BUILD_DIR)/linux
-LINUX_HEADERS_DIR:=$(TOOLCHAIN_BUILD_DIR)/linux
+LINUX_HEADERS_DIR:=$(BUILD_DIR_TOOLCHAIN)/linux

-# APPLICATIONS #
 HOSTCC:=gcc
+HOST_CFLAGS:=-O2 -I$(STAGING_DIR_HOST)/include
+HOST_LDFLAGS:=-L$(STAGING_DIR_HOST)/lib
+
 TARGET_CC:=$(TARGET_CROSS)gcc
-STRIP:=$(STAGING_DIR)/bin/sstrip
+STRIP:=$(STAGING_DIR_HOST)/bin/sstrip
 PATCH:=$(SCRIPT_DIR)/patch-kernel.sh
-SED:=$(STAGING_DIR)/bin/sed -i -e
+SED:=$(STAGING_DIR_HOST)/bin/sed -i -e
 CP:=cp -fpR

 INSTALL_BIN:=install -m0755
@ -99,11 +107,11 @@ RSTRIP:= \

 # where to build (and put) .ipk packages
 IPKG:= \
-  PATH="$(STAGING_DIR)/bin:$(PATH)" \
-  IPKG_TMP=$(BUILD_DIR)/tmp \
+  PATH="$(STAGING_DIR_HOST)/bin:$(PATH)" \
+  IPKG_TMP=$(TMP_DIR)/ipkg \
  IPKG_INSTROOT=$(TARGET_DIR) \
  IPKG_CONF_DIR=$(STAGING_DIR)/etc \
-  IPKG_OFFLINE_ROOT=$(BUILD_DIR)/root \
+  IPKG_OFFLINE_ROOT=$(TARGET_DIR) \
  $(SCRIPT_DIR)/ipkg -force-defaults -force-depends

 # invoke ipkg-build with some default options
--- a/target/linux/adm5120-2.6/image/Makefile
+++ b/target/linux/adm5120-2.6/image/Makefile
@ -22,7 +22,7 @@ define Build/Clean
 endef

 define Image/Prepare
-	cat $(KDIR)/vmlinux | $(STAGING_DIR)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
+	cat $(KDIR)/vmlinux | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
 endef

 define trxalign/jffs2-128k
@ -36,12 +36,12 @@ define trxalign/squashfs
 endef

 define Image/Build/TRX
-	$(STAGING_DIR)/bin/trx -o $(1) -f $(3) -f $(KDIR)/vmlinux.lzma \
+	$(STAGING_DIR_HOST)/bin/trx -o $(1) -f $(3) -f $(KDIR)/vmlinux.lzma \
 		$(call trxalign/$(2)) -f $(KDIR)/root.$(2)
 endef

 define Image/Build/TRXNoloader
-	$(STAGING_DIR)/bin/trx -o $(1) -f $(KDIR)/vmlinux.lzma \
+	$(STAGING_DIR_HOST)/bin/trx -o $(1) -f $(KDIR)/vmlinux.lzma \
 		$(call trxalign/$(2)) -f $(KDIR)/root.$(2)
 endef

@ -53,7 +53,7 @@ endef
 define Image/Build/Edimax
 	$(call Image/Build/Loader,$(2),gz,0x80500000,0x6D8,y,$(2))
 	$(call Image/Build/TRXNoloader,$(IMGNAME)-$(3)-$(2).trx,$(1))
-	$(STAGING_DIR)/bin/mkcsysimg -B $(4) -d -w \
+	$(STAGING_DIR_HOST)/bin/mkcsysimg -B $(4) -d -w \
 		-r $(KDIR)/loader-$(2).gz \
 		-x $(IMGNAME)-$(3)-$(2).trx \
 		$(IMGNAME)-$(3)-$(2).bin
@ -69,7 +69,7 @@ endef
 define Image/Build/MyLoader
 	$(call Image/Build/Loader,$(2),gz,0x80500000,0)
 	$(call Image/Build/TRXNoloader,$(IMGNAME)-$(3)-$(2).trx,$(1))
-	$(STAGING_DIR)/bin/mkmylofw -B $(4) \
+	$(STAGING_DIR_HOST)/bin/mkmylofw -B $(4) \
 		-p0x20000:0x10000:ahp:0x80001000 \
 		-p0x30000:0 \
 		-b0x20000:0x10000:h:$(KDIR)/loader-$(2).gz \
@ -83,7 +83,7 @@ endef

 define Image/Build/RouterBoard
 	$(CP) $(KDIR)/vmlinux.elf $(IMGNAME)-rb1xx-vmlinux
-	$(STAGING_DIR)/bin/patch-cmdline $(KDIR)/vmlinux.elf '$(strip $(call Image/cmdline/yaffs2)) '
+	$(STAGING_DIR_HOST)/bin/patch-cmdline $(KDIR)/vmlinux.elf '$(strip $(call Image/cmdline/yaffs2)) '
 endef

 define Image/Build/jffs2-64k
--- a/target/linux/adm5120eb-2.6/image/Makefile
+++ b/target/linux/adm5120eb-2.6/image/Makefile
@ -22,7 +22,7 @@ define Build/Clean
 endef

 define Image/Prepare
-	cat $(KDIR)/vmlinux | $(STAGING_DIR)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
+	cat $(KDIR)/vmlinux | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
 endef

 define trxalign/jffs2-128k
@ -36,12 +36,12 @@ define trxalign/squashfs
 endef

 define Image/Build/TRX
-	$(STAGING_DIR)/bin/trx -o $(1) -f $(3) -f $(KDIR)/vmlinux.lzma \
+	$(STAGING_DIR_HOST)/bin/trx -o $(1) -f $(3) -f $(KDIR)/vmlinux.lzma \
 		$(call trxalign/$(2)) -f $(KDIR)/root.$(2)
 endef

 define Image/Build/TRXNoloader
-	$(STAGING_DIR)/bin/trx -o $(1) -f $(KDIR)/vmlinux.lzma \
+	$(STAGING_DIR_HOST)/bin/trx -o $(1) -f $(KDIR)/vmlinux.lzma \
 		$(call trxalign/$(2)) -f $(KDIR)/root.$(2)
 endef

--- a/target/linux/amazon-2.6/image/Makefile
+++ b/target/linux/amazon-2.6/image/Makefile
@ -8,7 +8,7 @@ include $(TOPDIR)/rules.mk
 include $(INCLUDE_DIR)/image.mk

 define Image/BuildKernel
-	$(STAGING_DIR)/bin/lzma e $(KDIR)/vmlinux $(KDIR)/vmlinux.lzma
+	$(STAGING_DIR_HOST)/bin/lzma e $(KDIR)/vmlinux $(KDIR)/vmlinux.lzma
 	mkimage -A mips -O linux -T kernel -C lzma -a 0x80002000 -e \
 		0x80002000 \
 		-n 'MIPS OpenWrt Linux-$(LINUX_VERSION)' \
--- a/target/linux/ar7-2.6/image/Makefile
+++ b/target/linux/ar7-2.6/image/Makefile
@ -33,7 +33,7 @@ define Build/Clean
 endef

 define Image/Prepare
-	cat $(KDIR)/vmlinux | $(STAGING_DIR)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
+	cat $(KDIR)/vmlinux | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma

 	$(MAKE) -C $(GENERIC_PLATFORM_DIR)/image/lzma-loader \
 		$(LOADER_MAKEOPTS) \
@ -52,13 +52,13 @@ endef

 define Image/Build/CyberTAN
 	(dd if=/dev/zero bs=16 count=1; cat $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).bin) | \
-		$(STAGING_DIR)/bin/addpattern -p $(3) -o $(BIN_DIR)/openwrt-$(2)-$(KERNEL)-$(4).bin
+		$(STAGING_DIR_HOST)/bin/addpattern -p $(3) -o $(BIN_DIR)/openwrt-$(2)-$(KERNEL)-$(4).bin
 endef

 #define Image/Build/sErCoMm
 #	cat sercomm/adam2.bin "$(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).bin" > "$(KDIR)/dgfw.tmp"
 #	dd if=sercomm/$(2) of="$(KDIR)/dgfw.tmp" bs=$$$$((0x3e0000 - 80)) seek=1 conv=notrunc
-#	$(STAGING_DIR)/bin/dgfirmware -f -w "$(BIN_DIR)/openwrt-$(2)-$(KERNEL)-$(3).img" "$(KDIR)/dgfw.tmp"
+#	$(STAGING_DIR_HOST)/bin/dgfirmware -f -w "$(BIN_DIR)/openwrt-$(2)-$(KERNEL)-$(3).img" "$(KDIR)/dgfw.tmp"
 #	rm -f "$(KDIR)/dgfw.tmp"
 #endef

--- a/target/linux/at91-2.6/image/Makefile
+++ b/target/linux/at91-2.6/image/Makefile
@ -37,7 +37,7 @@ define Image/Build
 	dd if=$(KDIR)/uImage of=$(KDIR)/uImage.block bs=8448 conv=sync
 	dd if=$(KDIR)/root.squashfs of=$(KDIR)/root.block bs=8448 conv=sync
 	cat $(KDIR)/uImage.block $(KDIR)/root.block > $(KDIR)/knlroot.bin
-	$(STAGING_DIR)/bin/trx -o $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL).trx -f $(KDIR)/dfboot.bin -f$(KDIR)/u-boot.full -f$(KDIR)/knlroot.bin
+	$(STAGING_DIR_HOST)/bin/trx -o $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL).trx -f $(KDIR)/dfboot.bin -f$(KDIR)/u-boot.full -f$(KDIR)/knlroot.bin
 	cp $(KDIR)/dfbptest.bin $(BIN_DIR)
 	$(call Image/Build/$(1),$(1))
 endef
--- a/target/linux/atheros-2.6/image/Makefile
+++ b/target/linux/atheros-2.6/image/Makefile
@ -10,7 +10,7 @@ include $(INCLUDE_DIR)/image.mk
 define Image/BuildKernel
 	cp $(KDIR)/vmlinux.elf $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-vmlinux.elf
 	gzip -9 -c $(KDIR)/vmlinux > $(KDIR)/vmlinux.bin.gz
-	$(STAGING_DIR)/bin/lzma e $(KDIR)/vmlinux $(KDIR)/vmlinux.bin.l7
+	$(STAGING_DIR_HOST)/bin/lzma e $(KDIR)/vmlinux $(KDIR)/vmlinux.bin.l7
 	dd if=$(KDIR)/vmlinux.bin.l7 of=$(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-vmlinux.lzma bs=65536 conv=sync
 	dd if=$(KDIR)/vmlinux.bin.gz of=$(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-vmlinux.gz bs=65536 conv=sync
 endef
--- a/target/linux/au1000-2.6/image/Makefile
+++ b/target/linux/au1000-2.6/image/Makefile
@ -29,7 +29,7 @@ OBJCOPY_SREC := $(TARGET_CROSS)objcopy -S -O srec $(addprefix --remove-section=,
 OBJCOPY_BIN := $(TARGET_CROSS)objcopy -S -O binary $(addprefix --remove-section=,$(DROP_SECTIONS))

 define Image/Prepare
-	cat $(KDIR)/vmlinux | $(STAGING_DIR)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
+	cat $(KDIR)/vmlinux | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
 	
 	# Build RAM image
 	$(MAKE) -C $(GENERIC_PLATFORM_DIR)/image/lzma-loader \
--- a/target/linux/brcm-2.4/image/Makefile
+++ b/target/linux/brcm-2.4/image/Makefile
@ -12,7 +12,7 @@ define Build/Clean
 endef

 define Image/Prepare
-	cat $(KDIR)/vmlinux | $(STAGING_DIR)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
+	cat $(KDIR)/vmlinux | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
 	rm -f $(KDIR)/loader.gz
 	$(MAKE) -C lzma-loader \
 		BUILD_DIR="$(KDIR)" \
@ -32,15 +32,15 @@ ifneq ($(KERNEL),2.4)
 endif

 define Image/Build/CyberTAN
-	$(STAGING_DIR)/bin/addpattern -4 -p $(3) -v v$(4) -i $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).trx -o $(BIN_DIR)/openwrt-$(2)-$(KERNEL)-$(5).bin
+	$(STAGING_DIR_HOST)/bin/addpattern -4 -p $(3) -v v$(4) -i $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).trx -o $(BIN_DIR)/openwrt-$(2)-$(KERNEL)-$(5).bin
 endef

 define Image/Build/Motorola
-	$(STAGING_DIR)/bin/motorola-bin -$(3) $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).trx $(BIN_DIR)/openwrt-$(2)-$(4).bin
+	$(STAGING_DIR_HOST)/bin/motorola-bin -$(3) $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).trx $(BIN_DIR)/openwrt-$(2)-$(4).bin
 endef

 define Image/Build/USR
-	$(STAGING_DIR)/bin/trx2usr $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).trx $(BIN_DIR)/openwrt-$(2)-$(3).bin
+	$(STAGING_DIR_HOST)/bin/trx2usr $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).trx $(BIN_DIR)/openwrt-$(2)-$(3).bin
 endef

 define trxalign/jffs2-128k
@ -78,7 +78,7 @@ define Image/Build/squashfs
 endef

 define Image/Build
-	$(STAGING_DIR)/bin/trx -o $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).trx -f $(KDIR)/loader.gz -f $(KDIR)/vmlinux.lzma $(call trxalign/$(1),$(1))
+	$(STAGING_DIR_HOST)/bin/trx -o $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).trx -f $(KDIR)/loader.gz -f $(KDIR)/vmlinux.lzma $(call trxalign/$(1),$(1))
 	$(call Image/Build/$(1),$(1))
 	$(call Image/Build/Motorola,$(1),wr850g,1,$(1))
 	$(call Image/Build/USR,$(1),usr5461,$(1))
--- a/target/linux/brcm63xx-2.6/image/Makefile
+++ b/target/linux/brcm63xx-2.6/image/Makefile
@ -32,7 +32,7 @@ define Build/Clean
 endef

 define Image/Prepare
-	cat $(KDIR)/vmlinux | $(STAGING_DIR)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
+	cat $(KDIR)/vmlinux | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
 	rm -f $(KDIR)/loader.gz
 	$(MAKE) -C lzma-loader \
 		BUILD_DIR="$(KDIR)" \
@ -42,7 +42,7 @@ define Image/Prepare
 endef

 define Image/Build
-	$(STAGING_DIR)/bin/trx -o $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).trx -f $(KDIR)/loader.gz -f $(KDIR)/vmlinux.lzma $(call trxalign/$(1)) -f $(KDIR)/root.$(1)
+	$(STAGING_DIR_HOST)/bin/trx -o $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).trx -f $(KDIR)/loader.gz -f $(KDIR)/vmlinux.lzma $(call trxalign/$(1)) -f $(KDIR)/root.$(1)
 endef

 $(eval $(call BuildImage))
--- a/target/linux/rb532-2.6/image/Makefile
+++ b/target/linux/rb532-2.6/image/Makefile
@ -25,7 +25,7 @@ define Build/Clean
 endef

 define Image/Prepare
-	cat $(KDIR)/vmlinux | $(STAGING_DIR)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
+	cat $(KDIR)/vmlinux | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
 	$(MAKE) -C $(GENERIC_PLATFORM_DIR)/image/lzma-loader $(LOADER_MAKEOPTS) clean compile
 endef

@ -54,14 +54,14 @@ root=/dev/mtdblock1 rootfstype=yaffs2 init=/etc/preinit
 endef

 define Image/Build
-	$(STAGING_DIR)/bin/patch-cmdline $(KDIR)/vmlinux.elf '$(strip $(call Image/cmdline/$(1))) '
+	$(STAGING_DIR_HOST)/bin/patch-cmdline $(KDIR)/vmlinux.elf '$(strip $(call Image/cmdline/$(1))) '
 	./gen_image.sh $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).bin 4 $(KDIR)/vmlinux.elf $(CONFIG_TARGET_ROOTFS_FSPART) $(KDIR)/root.$(1)
 endef

 ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),y)
  define Image/Prepare
-	$(STAGING_DIR)/bin/patch-cmdline $(KDIR)/vmlinux '$(strip $(call Image/cmdline/yaffs2)) '
-	cat $(KDIR)/vmlinux | $(STAGING_DIR)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
+	$(STAGING_DIR_HOST)/bin/patch-cmdline $(KDIR)/vmlinux '$(strip $(call Image/cmdline/yaffs2)) '
+	cat $(KDIR)/vmlinux | $(STAGING_DIR_HOST)/bin/lzma e -si -so -eos -lc1 -lp2 -pb2 > $(KDIR)/vmlinux.lzma
 	$(MAKE) -C $(GENERIC_PLATFORM_DIR)/image/lzma-loader $(LOADER_MAKEOPTS) clean compile	
  endef
  define Image/BuildKernel
--- a/target/linux/rdc-2.6/image/Makefile
+++ b/target/linux/rdc-2.6/image/Makefile
@ -26,7 +26,7 @@ define Image/Build/ar525w
 	mv $(KDIR)/root.$(1) $(KDIR)/root.tmp
 	dd of=$(KDIR)/root.$(1) if=$(KDIR)/root.tmp $(call trxalign/$(1)) conv=sync
 	rm -f $(KDIR)/root.tmp
-	$(STAGING_DIR)/bin/airlink -b 1 -j $(shell bash -c 'echo $$[$(3)]') $(KDIR)/bzImage $(KDIR)/root.$(1) $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1)-$(2).img
+	$(STAGING_DIR_HOST)/bin/airlink -b 1 -j $(shell bash -c 'echo $$[$(3)]') $(KDIR)/bzImage $(KDIR)/root.$(1) $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1)-$(2).img
 endef

 define Image/Build/wl153
--- a/target/linux/x86-2.6/image/Makefile
+++ b/target/linux/x86-2.6/image/Makefile
@ -49,7 +49,7 @@ ifeq ($(CONFIG_X86_GRUB_IMAGES),y)
 		-e 's#@CMDLINE@#$(strip $(call Image/cmdline/$(1))) $(BOOTOPTS)#g' \
 		-e 's#@BAUDRATE@#$(CONFIG_X86_GRUB_BAUDRATE)#g' \
 		./grub/menu.lst > $(KDIR)/root.grub/boot/grub/menu.lst
-	PADDING="$(CONFIG_X86_GRUB_IMAGES_PAD)" PATH="$(STAGING_DIR)/usr/sbin:$(STAGING_DIR)/bin:$(PATH)" ./gen_image.sh $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).image $(CONFIG_X86_GRUB_KERNELPART) $(KDIR)/root.grub $(CONFIG_TARGET_ROOTFS_FSPART) $(KDIR)/root.$(1)
+	PADDING="$(CONFIG_X86_GRUB_IMAGES_PAD)" PATH="$(TARGET_PATH)" ./gen_image.sh $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).image $(CONFIG_X86_GRUB_KERNELPART) $(KDIR)/root.grub $(CONFIG_TARGET_ROOTFS_FSPART) $(KDIR)/root.$(1)
 	$(call Image/Build/grub/$(1))
  endef
 endif
@ -58,11 +58,10 @@ ifeq ($(CONFIG_X86_GRUB_IMAGES),y)
  define Image/Prepare/grub
 	# for the image builder
 	$(CP) \
-		$(STAGING_DIR)/usr/lib/grub/i386-pc/stage1 \
-		$(STAGING_DIR)/usr/lib/grub/i386-pc/stage2 \
-		$(STAGING_DIR)/usr/lib/grub/i386-pc/e2fs_stage1_5 \
+		$(STAGING_DIR_HOST)/usr/lib/grub/i386-pc/stage1 \
+		$(STAGING_DIR_HOST)/usr/lib/grub/i386-pc/stage2 \
+		$(STAGING_DIR_HOST)/usr/lib/grub/i386-pc/e2fs_stage1_5 \
 		$(KDIR)/
-	$(CP) $(STAGING_DIR)/usr/sbin/grub $(STAGING_DIR)/bin
  endef
 endif

--- a/target/linux/x86-2.6/image/grub/Makefile
+++ b/target/linux/x86-2.6/image/grub/Makefile
@ -65,8 +65,9 @@ endef

 define Build/InstallDev
 	$(MAKE) -C $(PKG_BUILD_DIR) \
-		DESTDIR="$(STAGING_DIR)" \
+		DESTDIR="$(STAGING_DIR_HOST)" \
 		install
+	mv $(STAGING_DIR_HOST)/usr/sbin/grub $(STAGING_DIR_HOST)/bin
 endef

 $(eval $(call Build/DefaultTargets))
--- a/toolchain/Makefile
+++ b/toolchain/Makefile
@ -19,12 +19,23 @@ ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
  $(curdir)/binutils/prepare:=$(curdir)/uClibc/prepare
  $(curdir)/gcc/prepare:=$(curdir)/binutils/install
  $(curdir)/uClibc/compile:=$(curdir)/gcc/compile
+  $(curdir)/gcc/install:=$(curdir)/uClibc/compile
+  $(curdir)/uClibc/install:=$(curdir)/gcc/install
 endif
-$(curdir)/gcc/install:=$(curdir)/uClibc/install
+
+$(TOOLCHAIN_DIR)/info.mk: .config
+	@for dir in $(TOOLCHAIN_DIR); do ( \
+		set -x; \
+		mkdir -p "$$dir"; \
+		cd "$$dir"; \
+		mkdir -p bin lib include stamp; \
+	); done
+	@grep GCC_VERSION $@ >/dev/null 2>&1 || $(INSTALL_DATA) $(TOPDIR)/toolchain/info.mk $@
+	@touch $@

 # prerequisites for the individual targets
 $(curdir)/ := .config prereq
-$(curdir)//prepare = $(STAGING_DIR)/include-host/.done
+$(curdir)//prepare = $(STAGING_DIR)/.prepared $(TOOLCHAIN_DIR)/info.mk
 $(curdir)//compile = $(1)/prepare
 $(curdir)//install = $(1)/compile

--- a/toolchain/binutils/Makefile
+++ b/toolchain/binutils/Makefile
@ -7,7 +7,8 @@
 include $(TOPDIR)/rules.mk

 PKG_NAME:=binutils
-PKG_VERSION:=$(strip $(subst ",, $(CONFIG_BINUTILS_VERSION)))#"))
+PKG_VERSION:=$(strip $(subst ",, $(CONFIG_BINUTILS_VERSION)))
+#"))

 PKG_SOURCE_URL:=http://ftp.gnu.org/gnu/binutils/ \
 	ftp://gatekeeper.dec.com/pub/GNU/ \
@ -17,17 +18,16 @@ PKG_SOURCE_URL:=http://ftp.gnu.org/gnu/binutils/ \
        ftp://ftp.leo.org/pub/comp/os/unix/gnu/ 

 PKG_SOURCE:=binutils-$(PKG_VERSION).tar.bz2
-PKG_MD5SUM:=unknown
-PKG_BUILD_DIR:=$(TOOLCHAIN_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
-PKG_CAT:=bzcat
 PATCH_DIR:=./patches/$(PKG_VERSION)
+STAGING_DIR_HOST:=$(TOOLCHAIN_DIR)
+BUILD_DIR_HOST:=$(BUILD_DIR_TOOLCHAIN)

 include $(INCLUDE_DIR)/host-build.mk

 define Build/Configure
 	(cd $(PKG_BUILD_DIR); \
 		./configure \
-		--prefix=$(STAGING_DIR) \
+		--prefix=$(STAGING_DIR_HOST) \
 		--build=$(GNU_HOST_NAME) \
 		--host=$(GNU_HOST_NAME) \
 		--target=$(REAL_GNU_TARGET_NAME) \
@ -37,11 +37,11 @@ define Build/Configure
 endef

 define Build/Compile
-	$(MAKE) -C $(PKG_BUILD_DIR) -j $(CONFIG_JLEVEL) all
+	$(MAKE) -C $(PKG_BUILD_DIR) all
 endef

 define Build/Install
-	$(MAKE) -C $(PKG_BUILD_DIR) -j $(CONFIG_JLEVEL) install
+	$(MAKE) -C $(PKG_BUILD_DIR) install
 endef

 $(eval $(call HostBuild))
--- a/toolchain/gcc/Makefile
+++ b/toolchain/gcc/Makefile
@ -27,39 +27,33 @@ PATCH_DIR=./patches/$(PKG_VERSION)
 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-$(PKG_VERSION)
-	
 PKG_SOURCE:=gcc-$(PKG_VERSION).tar.bz2
-PKG_MD5SUM:=unknown
-PKG_CAT:=bzcat
-
-PKG_BUILD_DIR:=$(TOOLCHAIN_BUILD_DIR)/gcc-$(PKG_VERSION)
-
-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
+STAGING_DIR_HOST:=$(TOOLCHAIN_DIR)
+BUILD_DIR_HOST:=$(BUILD_DIR_TOOLCHAIN)

 include $(INCLUDE_DIR)/host-build.mk

-STAMP_BUILT:=$(STAGING_DIR)/stampfiles/.host_gcc-initial_installed
-BUILD_DIR1:=$(TOOLCHAIN_BUILD_DIR)/gcc-$(PKG_VERSION)-initial
-BUILD_DIR2:=$(TOOLCHAIN_BUILD_DIR)/gcc-$(PKG_VERSION)-final
+STAMP_BUILT:=$(TOOLCHAIN_DIR)/stamp/.gcc-initial_installed
+BUILD_DIR1:=$(BUILD_DIR_HOST)/gcc-$(PKG_VERSION)-initial
+BUILD_DIR2:=$(BUILD_DIR_HOST)/gcc-$(PKG_VERSION)-final
+
+SEP:=,
+TARGET_LANGUAGES:="c$(if $(CONFIG_INSTALL_LIBSTDCPP),$(SEP)c++)$(if $(CONFIG_INSTALL_LIBGCJ),$(SEP)java)"

 define Stage1/Configure
+	$(SED) 's,TARGET_CROSS=.*,TARGET_CROSS=$(REAL_GNU_TARGET_NAME)-,' $(TOOLCHAIN_DIR)/info.mk
+	$(SED) 's,GCC_VERSION=.*,GCC_VERSION=$(PKG_VERSION),' $(TOOLCHAIN_DIR)/info.mk
 	mkdir -p $(BUILD_DIR1)
 	(cd $(BUILD_DIR1); rm -f config.cache; \
 		SHELL="$(BASH)" \
 		$(PKG_BUILD_DIR)/configure \
-		--prefix=$(STAGING_DIR) \
+		--prefix=$(TOOLCHAIN_DIR) \
 		--build=$(GNU_HOST_NAME) \
 		--host=$(GNU_HOST_NAME) \
 		--target=$(REAL_GNU_TARGET_NAME) \
 		--enable-languages=c \
 		--disable-shared \
-		--with-sysroot=$(TOOLCHAIN_BUILD_DIR)/uClibc_dev/ \
+		--with-sysroot=$(BUILD_DIR_HOST)/uClibc_dev/ \
 		--disable-__cxa_atexit \
 		--enable-target-optspace \
 		--with-gnu-ld \
@ -77,14 +71,14 @@ endef
 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
+	rm -rf $(TOOLCHAIN_DIR)/$(REAL_GNU_TARGET_NAME)/sys-include
+	ln -sf ../include $(TOOLCHAIN_DIR)/$(REAL_GNU_TARGET_NAME)/sys-include
+	rm -rf $(TOOLCHAIN_DIR)/$(REAL_GNU_TARGET_NAME)/lib
+	ln -sf ../lib $(TOOLCHAIN_DIR)/$(REAL_GNU_TARGET_NAME)/lib
 	(cd $(BUILD_DIR2); rm -f config.cache; \
 		SHELL="$(BASH)" \
 		$(PKG_BUILD_DIR)/configure \
-		--prefix=$(STAGING_DIR) \
+		--prefix=$(TOOLCHAIN_DIR) \
 		--build=$(GNU_HOST_NAME) \
 		--host=$(GNU_HOST_NAME) \
 		--target=$(REAL_GNU_TARGET_NAME) \
@ -97,15 +91,20 @@ define Stage2/Configure
 		--disable-libmudflap \
 	);
 endef
+
 define Stage2/Compile
-	export SHELL="$(BASH)"; $(MAKE) -C $(BUILD_DIR2) all
+	$(MAKE) -C $(BUILD_DIR2) \
+		SHELL="$(BASH)" \
+		all
 endef
+
 define Stage2/Install
-	export SHELL="$(BASH)"; $(MAKE) -C $(BUILD_DIR2) install
-	echo $(PKG_VERSION) > $(STAGING_DIR)/gcc_version
+	$(MAKE) -C $(BUILD_DIR2) \
+		SHELL="$(BASH)" \
+		install
 	# Set up the symlinks to enable lying about target name.
 	set -e; \
-	(cd $(STAGING_DIR); \
+	(cd $(TOOLCHAIN_DIR); \
 		ln -sf $(REAL_GNU_TARGET_NAME) $(GNU_TARGET_NAME); \
 		cd bin; \
 		for app in $(REAL_GNU_TARGET_NAME)-* ; do \
@ -129,7 +128,7 @@ endef

 define Build/Compile
 	$(call Stage1/Compile)
-	$(call Stage1/Install)
+	$(if $(wildcard $(TOOLCHAIN_DIR)/bin/$(GNU_TARGET_NAME)-gcc),,$(call Stage1/Install))
 endef

 define Build/Install
@ -139,11 +138,13 @@ define Build/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*
+	rm -rf \
+		$(PKG_BUILD_DIR) \
+		$(BUILD_DIR1) \
+		$(BUILD_DIR2) \
+		$(TOOLCHAIN_DIR)/$(REAL_GNU_TARGET_NAME) \
+		$(TOOLCHAIN_DIR)/bin/$(REAL_GNU_TARGET_NAME)-gc* \
+		$(TOOLCHAIN_DIR)/bin/$(REAL_GNU_TARGET_NAME)-c*
 endef

 $(eval $(call HostBuild))
--- a/toolchain/gdb/Makefile
+++ b/toolchain/gdb/Makefile
@ -14,7 +14,8 @@ PKG_MD5SUM:=05b928f41fa5b482e49ca2c24762a0ae
 PKG_SOURCE_URL:=http://ftp.gnu.org/gnu/gdb
 PKG_CAT:=bzcat

-PKG_BUILD_DIR:=$(TOOLCHAIN_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
+STAGING_DIR_HOST:=$(TOOLCHAIN_DIR)
+BUILD_DIR_HOST:=$(BUILD_DIR_TOOLCHAIN)

 include $(INCLUDE_DIR)/host-build.mk

@ -22,7 +23,7 @@ define Build/Configure
 	(cd $(PKG_BUILD_DIR); \
 		gdb_cv_func_sigsetjmp=yes \
 		$(PKG_BUILD_DIR)/configure \
-		--prefix=$(STAGING_DIR) \
+		--prefix=$(TOOLCHAIN_DIR) \
 		--build=$(GNU_HOST_NAME) \
 		--host=$(GNU_HOST_NAME) \
 		--target=$(REAL_GNU_TARGET_NAME) \
@ -40,16 +41,14 @@ define Build/Compile
 endef

 define Build/Install
-	(cd $(STAGING_DIR)/bin; \
-		install -c $(PKG_BUILD_DIR)/gdb/gdb $(TARGET_CROSS)gdb; \
-		ln -fs $(TARGET_CROSS)gdb $(GNU_TARGET_NAME)-gdb; \
-	);
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/gdb/gdb $(TARGET_CROSS)gdb
+	ln -fs $(TARGET_CROSS)gdb $(TOOLCHAIN_DIR)/$(GNU_TARGET_NAME)-gdb; \
 endef

 define Build/Clean
 	rm -rf $(PKG_BUILD_DIR)
-	rm -f $(STAGING_DIR)/bin/$(TARGET_CROSS)gdb
-	rm -f $(STAGING_DIR)/bin/$(GNU_TARGET_NAME)-gdb
+	rm -f $(TOOLCHAIN_DIR)/bin/$(TARGET_CROSS)gdb
+	rm -f $(TOOLCHAIN_DIR)/bin/$(GNU_TARGET_NAME)-gdb
 endef

 $(eval $(call HostBuild))
--- a/toolchain/info.mk
+++ b/toolchain/info.mk
@ -0,0 +1,4 @@
+TARGET_CROSS=
+GCC_VERSION=unknown
+UCLIBC_VERSION=unknown
+UCLIBC_PATCHVER=
--- a/toolchain/kernel-headers/Makefile
+++ b/toolchain/kernel-headers/Makefile
@ -5,33 +5,32 @@
 # See /LICENSE for more information.
 #
 include $(TOPDIR)/rules.mk
-include $(INCLUDE_DIR)/kernel.mk

-PKG_NAME=kernel-headers
-PKG_VERSION=$(LINUX_VERSION)
-
-PKG_SOURCE=$(LINUX_SOURCE)
-PKG_SOURCE_URL=$(LINUX_SITE)
-
-PKG_BUILD_DIR:=$(TOOLCHAIN_BUILD_DIR)/linux-$(PKG_VERSION)
+PKG_NAME:=linux
+PKG_VERSION:=$(LINUX_VERSION)
+PKG_SOURCE:=$(LINUX_SOURCE)
+PKG_SOURCE_URL:=$(LINUX_SITE)

+KERNEL_BUILD_DIR := $(BUILD_DIR_TOOLCHAIN)
+PKG_BUILD_DIR := $(KERNEL_BUILD_DIR)/linux-$(LINUX_VERSION)
 LINUX_DIR := $(PKG_BUILD_DIR)
-KERNEL_BUILD_DIR:=$(TOOLCHAIN_BUILD_DIR)
+BUILD_DIR := $(KERNEL_BUILD_DIR)
+
+STAGING_DIR_HOST:=$(TOOLCHAIN_DIR)
+BUILD_DIR_HOST:=$(BUILD_DIR_TOOLCHAIN)
 override QUILT:=

+include $(INCLUDE_DIR)/kernel.mk
 include $(INCLUDE_DIR)/host-build.mk
 include $(INCLUDE_DIR)/kernel-defaults.mk

-
 define Build/Prepare/cris
-	mkdir -p $(TOOLCHAIN_BUILD_DIR)
+	mkdir -p $(BUILD_DIR_TOOLCHAIN)
 	bzcat $(DL_DIR)/$(PKG_SOURCE) | $(HOST_TAR) -C $(TOOLCHAIN_BUILD_DIR) $(TAR_OPTIONS)
 	$(PATCH) $(PKG_BUILD_DIR) $(TOPDIR)/target/linux/etrax-2.6/patches/generic_2.6
 	$(PATCH) $(PKG_BUILD_DIR) $(TOPDIR)/target/linux/etrax-2.6/patches/cris
-	ln -sf $(PKG_BUILD_DIR)/include/asm-cris/arch-v10 $(PKG_BUILD_DIR)/include/asm-cris/arch
-	ln -sf $(PKG_BUILD_DIR)/arch/cris/arch-v10 $(PKG_BUILD_DIR)/arch/cris/arch
-	$(SED) 's/@expr length/@-expr length/' $(PKG_BUILD_DIR)/Makefile
-	ln -sf $(PKG_BUILD_DIR) $(LINUX_HEADERS_DIR)
+	ln -sf arch-v10 $(PKG_BUILD_DIR)/include/asm-cris/arch
+	ln -sf arch-v10 $(PKG_BUILD_DIR)/arch/cris/arch
 endef

 define Build/Configure/powerpc
@ -48,14 +47,10 @@ KMAKE := $(MAKE) -C $(PKG_BUILD_DIR) \
 	ARCH=$(LINUX_KARCH) \
 	CONFIG_SHELL=$(BASH)

-define Build/Prepare/Default
-	$(call Kernel/Prepare/Default)
-	$(SED) 's/@expr length/@-expr length/' $(PKG_BUILD_DIR)/Makefile
-	ln -sf $(PKG_BUILD_DIR) $(LINUX_HEADERS_DIR)
-endef
-
 define Build/Prepare
-	$(if $(Build/Prepare/$(ARCH)),$(Build/Prepare/$(ARCH)),$(Build/Prepare/Default))
+	$(if $(Build/Prepare/$(ARCH)),$(Build/Prepare/$(ARCH)),$(call Kernel/Prepare/Default))
+	$(SED) 's/@expr length/@-expr length/' $(PKG_BUILD_DIR)/Makefile
+	ln -sf linux-$(LINUX_VERSION) $(LINUX_HEADERS_DIR)
 	yes '' | $(KMAKE) oldconfig
 	$(KMAKE) include/linux/version.h include/asm
 	$(call Build/Configure/$(ARCH))
--- a/toolchain/uClibc/Makefile
+++ b/toolchain/uClibc/Makefile
@ -16,10 +16,15 @@ PKG_SOURCE_URL:=http://www.uclibc.org/downloads
 PKG_MD5SUM:=959f25286e317f0d9e2103445c5a14c2
 PKG_CAT:=bzcat

-PKG_BUILD_DIR:=$(TOOLCHAIN_BUILD_DIR)/uClibc-$(PKG_VERSION)$(PKG_EXTRAVERSION)
+STAGING_DIR_HOST:=$(TOOLCHAIN_DIR)
+BUILD_DIR_HOST:=$(BUILD_DIR_TOOLCHAIN)
+PKG_BUILD_DIR:=$(BUILD_DIR_HOST)/uClibc-$(PKG_VERSION)$(PKG_EXTRAVERSION)

 include $(INCLUDE_DIR)/host-build.mk

+STAMP_BUILT:=$(TOOLCHAIN_DIR)/stamp/.uclibc_installed
+STAMP_INSTALLED:=$(TOOLCHAIN_DIR)/stamp/.uclibc-utils_installed
+
 UCLIBC_TARGET_ARCH:=$(shell echo $(ARCH) | sed -e s'/-.*//' \
 		-e 's/i.86/i386/' \
 		-e 's/sparc.*/sparc/' \
@ -37,32 +42,19 @@ UCLIBC_TARGET_ARCH:=$(shell echo $(ARCH) | sed -e s'/-.*//' \

 define Build/Prepare
 	$(call Build/Prepare/Default)
-	if [ -e config/$(ARCH).$(BOARD) ]; then \
-		$(CP) config/$(ARCH).$(BOARD) $(PKG_BUILD_DIR)/.config; \
-	else \
-		$(CP) config/$(ARCH) $(PKG_BUILD_DIR)/.config; \
-	fi
+	$(CP) config/$(ARCH)$(if $(wildcard config/$(ARCH).$(BOARD)),$(BOARD)) $(PKG_BUILD_DIR)/.config
 	$(SED) 's,^KERNEL_SOURCE=.*,KERNEL_SOURCE=\"$(LINUX_HEADERS_DIR)\",g' \
+		-e 's,.*HAS_FPU.*,HAS_FPU=$(if $(CONFIG_SOFT_FLOAT),n\nUCLIBC_HAS_FLOATS=y\nUCLIBC_HAS_SOFT_FLOAT=y,y),g' \
+		-e 's,^.*UCLIBC_HAS_LFS.*,UCLIBC_HAS_LFS=$(if $(CONFIG_LARGEFILE),y,n),g' \
+		-e 's,.*DO_C99_MATH.*,DO_C99_MATH=$(if $(CONFIG_C99_MATH),y,n),g' \
 		$(PKG_BUILD_DIR)/.config
-ifeq ($(CONFIG_LARGEFILE),y)
-	$(SED) 's,^.*UCLIBC_HAS_LFS.*,UCLIBC_HAS_LFS=y,g' $(PKG_BUILD_DIR)/.config
-else
-	$(SED) 's,^.*UCLIBC_HAS_LFS.*,UCLIBC_HAS_LFS=n,g' $(PKG_BUILD_DIR)/.config
-endif
-	$(SED) 's,.*UCLIBC_HAS_WCHAR.*,UCLIBC_HAS_WCHAR=y,g' $(PKG_BUILD_DIR)/.config
-ifeq ($(CONFIG_SOFT_FLOAT),y)
-	$(SED) 's,.*HAS_FPU.*,HAS_FPU=n\nUCLIBC_HAS_FLOATS=y\nUCLIBC_HAS_SOFT_FLOAT=y,g' $(PKG_BUILD_DIR)/.config
-endif
-ifeq ($(CONFIG_C99_MATH),y)
-	$(SED) 's,.*DO_C99_MATH.*,DO_C99_MATH=y,g' $(PKG_BUILD_DIR)/.config
-endif
-	mkdir -p $(TOOLCHAIN_BUILD_DIR)/uClibc_dev/usr/include
-	mkdir -p $(TOOLCHAIN_BUILD_DIR)/uClibc_dev/usr/lib
-	mkdir -p $(TOOLCHAIN_BUILD_DIR)/uClibc_dev/lib
+	mkdir -p $(BUILD_DIR_HOST)/uClibc_dev/usr/include
+	mkdir -p $(BUILD_DIR_HOST)/uClibc_dev/usr/lib
+	mkdir -p $(BUILD_DIR_HOST)/uClibc_dev/lib
 	PATH=$(TARGET_PATH) $(MAKE) -C $(PKG_BUILD_DIR) \
-		PREFIX=$(TOOLCHAIN_BUILD_DIR)/uClibc_dev/ \
+		PREFIX=$(BUILD_DIR_HOST)/uClibc_dev/ \
 		DEVEL_PREFIX=/usr/ \
-		RUNTIME_PREFIX=$(TOOLCHAIN_BUILD_DIR)/uClibc_dev/ \
+		RUNTIME_PREFIX=$(BUILD_DIR_HOST)/uClibc_dev/ \
 		HOSTCC="$(HOSTCC)" \
 		CPU_CFLAGS="$(TARGET_CFLAGS)" \
 		pregen install_dev;
@ -71,34 +63,31 @@ endef
 define Build/Configure
 endef

-define Build/Compile
-	$(SED) 's,^CROSS=.*,CROSS=$(TARGET_CROSS),g' $(PKG_BUILD_DIR)/Rules.mak
-	PATH=$(TARGET_PATH) $(MAKE) -C $(PKG_BUILD_DIR) \
-		PREFIX= \
+UCLIBC_MAKE := PATH=$(TARGET_PATH) $(MAKE) -C $(PKG_BUILD_DIR) \
 		DEVEL_PREFIX=/ \
 		RUNTIME_PREFIX=/ \
 		HOSTCC="$(HOSTCC)" \
-		CPU_CFLAGS="$(TARGET_CFLAGS)" \
-		all
+		CPU_CFLAGS="$(TARGET_CFLAGS)"
+
+define Build/Compile
+	$(SED) 's,^CROSS=.*,CROSS=$(TARGET_CROSS),g' $(PKG_BUILD_DIR)/Rules.mak
+	$(UCLIBC_MAKE) PREFIX= all 
+	$(UCLIBC_MAKE) PREFIX=$(STAGING_DIR_HOST)/ install_runtime install_dev
+	$(SED) 's,UCLIBC_VERSION=.*,UCLIBC_VERSION=$(PKG_VERSION),' $(TOOLCHAIN_DIR)/info.mk
+	$(SED) 's,UCLIBC_PATCHVER=.*,UCLIBC_PATCHVER=$(PKG_EXTRAVERSION),' $(TOOLCHAIN_DIR)/info.mk
 endef

 define Build/Install
-	$(MAKE) -C $(PKG_BUILD_DIR) \
-		PREFIX=$(STAGING_DIR)/ \
-		DEVEL_PREFIX=/ \
-		RUNTIME_PREFIX=/ \
-		install_runtime
-	$(MAKE) -C $(PKG_BUILD_DIR) \
-		PREFIX=$(STAGING_DIR)/ \
-		DEVEL_PREFIX=/ \
-		RUNTIME_PREFIX=/ \
-		install_dev
-	echo $(PKG_VERSION) > $(STAGING_DIR)/uclibc_version
-	echo $(PKG_VERSION)$(PKG_EXTRAVERSION) > $(STAGING_DIR)/uclibc_extra_version
+	$(UCLIBC_MAKE) PREFIX= utils
+	$(INSTALL_DIR) $(TOOLCHAIN_DIR)/target-utils
+	$(INSTALL_BIN) \
+		$(PKG_BUILD_DIR)/utils/ldd \
+		$(PKG_BUILD_DIR)/utils/ldconfig \
+		$(TOOLCHAIN_DIR)/target-utils/
 endef

 define Build/Clean
-	rm -rf $(PKG_BUILD_DIR) $(TOOLCHAIN_BUILD_DIR)/uClibc_dev
+	rm -rf $(PKG_BUILD_DIR) $(BUILD_DIR_HOST)/uClibc_dev
 endef

 $(eval $(call HostBuild))
--- a/tools/Makefile
+++ b/tools/Makefile
@ -15,15 +15,19 @@ $(curdir)/builddirs := sed sstrip ipkg-utils ext2fs squashfs mtd-utils lzma mkim
 $(curdir)/squashfs/compile := $(curdir)/lzma/install

 # preparatory work
-define copy_include
-$(STAGING_DIR)/include-host/.done:
-	@mkdir -p $$$$(dirname $$@)
-	@cp $(1)/include/*.h $$$$(dirname $$@)/
-	@touch $$@
-$(curdir)//prepare = $(STAGING_DIR)/include-host/.done
-$(curdir)//compile = $(STAGING_DIR)/include-host/.done
-endef
-$(eval $(call copy_include,$(curdir)))
+$(STAGING_DIR)/.prepared: $(TMP_DIR)/.build
+	@for dir in $(STAGING_DIR) $(STAGING_DIR_HOST); do ( \
+		set -x; \
+		mkdir -p "$$dir"; \
+		cd "$$dir"; \
+		mkdir -p bin lib include stamp; \
+	); done
+	mkdir -p $(BUILD_DIR_HOST)/stamp $(BUILD_DIR)/stamp
+	$(INSTALL_DATA) $(TOPDIR)/tools/include/*.h $(STAGING_DIR_HOST)/include/
+	touch $@
+
+$(curdir)//prepare = $(STAGING_DIR)/.prepared
+$(curdir)//compile = $(STAGING_DIR)/.prepared

 # prerequisites for the individual targets
 $(curdir)/ := .config prereq
--- a/tools/ccache/Makefile
+++ b/tools/ccache/Makefile
@ -15,8 +15,6 @@ PKG_SOURCE_URL:=http://samba.org/ftp/ccache/
 PKG_MD5SUM:=73c1ed1e767c1752dd0f548ec1e66ce7
 PKG_CAT:=zcat

-PKG_BUILD_DIR:=$(TOOLCHAIN_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
-
 include $(INCLUDE_DIR)/host-build.mk

 ifneq ($(strip $(shell which ccache >/dev/null && echo found)),found)
@ -26,7 +24,7 @@ ifneq ($(strip $(shell which ccache >/dev/null && echo found)),found)

  define Build/Install
 	$(MAKE) -C $(PKG_BUILD_DIR) \
-		DESTDIR="$(STAGING_DIR)" \
+		DESTDIR="$(STAGING_DIR_HOST)" \
 		install
  endef

--- a/tools/ext2fs/Makefile
+++ b/tools/ext2fs/Makefile
@ -16,8 +16,6 @@ PKG_SOURCE_URL:=@SF/$(PKG_NAME)
 PKG_MD5SUM:=664431bf6737df1c265500e1f0b5d40c
 PKG_CAT:=zcat

-PKG_BUILD_DIR:=$(TOOL_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
-
 include $(INCLUDE_DIR)/host-build.mk

 define Build/Configure
@ -43,17 +41,16 @@ endef

 define Build/Compile
 	$(MAKE) -C $(PKG_BUILD_DIR) \
-		CFLAGS="-O2 -I $(STAGING_DIR)/include-host -include getline.h" \
+		CFLAGS="$(HOST_CFLAGS) -include getline.h" \
 		all
 endef

 define Build/Install
-	mkdir -p $(STAGING_DIR)/bin
-	install -m0755 $(PKG_BUILD_DIR)/genext2fs $(STAGING_DIR)/bin/
+	install -m0755 $(PKG_BUILD_DIR)/genext2fs $(STAGING_DIR_HOST)/bin/
 endef

 define Build/Clean
-	rm -f $(STAGING_DIR)/bin/genext2fs
+	rm -f $(STAGING_DIR_HOST)/bin/genext2fs
 endef

 $(eval $(call HostBuild))
--- a/tools/firmware-utils/Makefile
+++ b/tools/firmware-utils/Makefile
@ -7,14 +7,11 @@
 include $(TOPDIR)/rules.mk

 PKG_NAME := firmware-utils
-PKG_BUILD_DIR:=$(TOOL_BUILD_DIR)/firmware-utils

 include $(INCLUDE_DIR)/host-build.mk

-CFLAGS := -O2 -I $(STAGING_DIR)/include-host -include endian.h
-
 define cc
-	$(CC) $(CFLAGS) -o $(PKG_BUILD_DIR)/bin/$(1) src/$(1).c
+	$(CC) $(HOST_CFLAGS) -include endian.h -o $(PKG_BUILD_DIR)/bin/$(1) src/$(1).c
 endef

 define Build/Compile
@ -33,7 +30,7 @@ define Build/Compile
 endef

 define Build/Install
-	$(CP) $(PKG_BUILD_DIR)/bin/* $(STAGING_DIR)/bin
+	$(CP) $(PKG_BUILD_DIR)/bin/* $(STAGING_DIR_HOST)/bin/
 endef

 $(eval $(call HostBuild))
--- a/tools/ipkg-utils/Makefile
+++ b/tools/ipkg-utils/Makefile
@ -14,24 +14,23 @@ PKG_SOURCE_URL:=http://handhelds.org/packages/ipkg-utils/
 PKG_MD5SUM:=da3e3ef772973d7370a6ac95f0fef9b8
 PKG_CAT:=zcat

-PKG_BUILD_DIR:=$(TOOL_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
-
 include $(INCLUDE_DIR)/host-build.mk

 define Build/Install
 	mkdir -p $(STAGING_DIR)/etc
 	echo "dest root /" > $(STAGING_DIR)/etc/ipkg.conf
 	echo "option offline_root $(TARGET_DIR)" >> $(STAGING_DIR)/etc/ipkg.conf
-	mkdir -p $(STAGING_DIR)/usr/bin
-	install -m0755 $(PKG_BUILD_DIR)/ipkg-build $(STAGING_DIR)/usr/bin/
-	install -m0755 $(PKG_BUILD_DIR)/ipkg-buildpackage $(STAGING_DIR)/usr/bin/
-	install -m0755 $(PKG_BUILD_DIR)/ipkg-make-index $(STAGING_DIR)/usr/bin/
-	install -m0755 $(PKG_BUILD_DIR)/ipkg.py $(STAGING_DIR)/usr/bin/
+	$(INSTALL_BIN) \
+		$(PKG_BUILD_DIR)/ipkg-build \
+		$(PKG_BUILD_DIR)/ipkg-buildpackage \
+		$(PKG_BUILD_DIR)/ipkg-make-index \
+		$(PKG_BUILD_DIR)/ipkg.py \
+		$(STAGING_DIR_HOST)/bin/
 endef

 define Build/Clean
 	rm -f $(STAGING_DIR)/etc/ipkg.conf
-	rm -f $(STAGING_DIR)/usr/bin/ipkg*
+	rm -f $(STAGING_DIR_HOST)/bin/ipkg*
 endef

 $(eval $(call HostBuild))
--- a/tools/lzma/Makefile
+++ b/tools/lzma/Makefile
@ -13,32 +13,28 @@ PKG_SOURCE:=$(PKG_NAME)$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=@SF/sevenzip
 PKG_MD5SUM:=155c1ebce5bc6710ae7ecc926226d9d7

-PKG_BUILD_DIR:=$(TOOL_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)/lzma
+PKG_BUILD_DIR:=$(BUILD_DIR_HOST)/$(PKG_NAME)-$(PKG_VERSION)/lzma
+PKG_UNPACK:=bzcat $(DL_DIR)/$(PKG_SOURCE) | $(TAR) -C $(PKG_BUILD_DIR)/ $(TAR_OPTIONS)

 include $(INCLUDE_DIR)/host-build.mk

 LIB_DIR=$(PKG_BUILD_DIR)/C/7zip/Compress/LZMA_Lib
 ALONE_DIR=$(PKG_BUILD_DIR)/C/7zip/Compress/LZMA_Alone

-define Build/Prepare
-	bzcat $(DL_DIR)/$(PKG_SOURCE) | $(TAR) -C $(PKG_BUILD_DIR)/ $(TAR_OPTIONS)
-	$(PATCH) $(PKG_BUILD_DIR) ./patches
-endef
-
 define Build/Compile
 	$(MAKE) -C $(LIB_DIR)
 	$(MAKE) -f makefile.gcc -C $(ALONE_DIR)
 endef

 define Build/Install
-	mkdir -p $(STAGING_DIR)/host/lib
-	$(CP) $(LIB_DIR)/liblzma.a $(STAGING_DIR)/host/lib/
-	mkdir -p $(STAGING_DIR)/bin
-	$(CP) $(ALONE_DIR)/lzma $(STAGING_DIR)/bin/
+	$(INSTALL_DATA) $(LIB_DIR)/liblzma.a $(STAGING_DIR_HOST)/lib/
+	$(INSTALL_BIN) $(ALONE_DIR)/lzma $(STAGING_DIR_HOST)/bin/
 endef

 define Build/Clean
-	rm -f $(STAGING_DIR)/host/lib/liblzma.a $(STAGING_DIR)/bin/lzma
+	rm -f \
+		$(STAGING_DIR_HOST)/lib/liblzma.a \
+		$(STAGING_DIR_HOST)/bin/lzma
 endef

 $(eval $(call HostBuild))
--- a/tools/mkimage/Makefile
+++ b/tools/mkimage/Makefile
@ -7,23 +7,21 @@
 include $(TOPDIR)/rules.mk

 PKG_NAME:=mkimage
-PKG_BUILD_DIR:=$(TOOL_BUILD_DIR)/mkimage

 include $(INCLUDE_DIR)/host-build.mk

 define Build/Compile
-	$(CC) -O -c src/crc32.c -o $(PKG_BUILD_DIR)/crc32.o
-	$(CC) -O -c src/mkimage.c -o $(PKG_BUILD_DIR)/mkimage.o
-	$(CC) -O -o $(PKG_BUILD_DIR)/mkimage $(PKG_BUILD_DIR)/mkimage.o $(PKG_BUILD_DIR)/crc32.o
+	$(HOSTCC) $(HOST_CFLAGS) -O -c src/crc32.c -o $(PKG_BUILD_DIR)/crc32.o
+	$(HOSTCC) $(HOST_CFLAGS) -O -c src/mkimage.c -o $(PKG_BUILD_DIR)/mkimage.o
+	$(HOSTCC) $(HOST_CFLAGS) -O -o $(PKG_BUILD_DIR)/mkimage $(PKG_BUILD_DIR)/mkimage.o $(PKG_BUILD_DIR)/crc32.o
 endef

 define Build/Install
-	mkdir -p $(STAGING_DIR)/bin
-	$(CP) $(PKG_BUILD_DIR)/mkimage $(STAGING_DIR)/bin/
+	$(CP) $(PKG_BUILD_DIR)/mkimage $(STAGING_DIR_HOST)/bin/
 endef

 define Build/Clean
-	rm -f $(STAGING_DIR)/bin/mkimage
+	rm -f $(STAGING_DIR_HOST)/bin/mkimage
 endef

 $(eval $(call HostBuild))
--- a/tools/mtd-utils/Makefile
+++ b/tools/mtd-utils/Makefile
@ -14,13 +14,13 @@ PKG_SOURCE_URL=http://ftp.debian.org/debian/pool/main/m/mtd
 PKG_MD5SUM:=1f42c2cae08eb9e7b52d0c188f8d6338
 PKG_CAT:=zcat

-PKG_BUILD_DIR:=$(TOOL_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION).orig
+PKG_BUILD_DIR:=$(BUILD_DIR_HOST)/$(PKG_NAME)-$(PKG_VERSION).orig

 include $(INCLUDE_DIR)/host-build.mk

-CFLAGS := $(HOSTCFLAGS) -O2 -I../include
+CFLAGS := $(HOST_CFLAGS) -I../include
 ifneq ($(HOST_OS),Linux)
-CFLAGS += -Dloff_t=off_t -D__BYTE_ORDER=BYTE_ORDER -I$(STAGING_DIR)/include-host -include getline.h -include endian.h
+CFLAGS += -Dloff_t=off_t -D__BYTE_ORDER=BYTE_ORDER -include getline.h -include endian.h
 endif

 define Build/Compile
@ -28,12 +28,11 @@ define Build/Compile
 endef

 define Build/Install
-	mkdir -p $(STAGING_DIR)/bin
-	$(CP) $(PKG_BUILD_DIR)/util/mkfs.jffs2 $(STAGING_DIR)/bin/
+	$(CP) $(PKG_BUILD_DIR)/util/mkfs.jffs2 $(STAGING_DIR_HOST)/bin/
 endef

 define Build/Clean
-	rm -f $(STAGING_DIR)/bin/mkfs.jffs2
+	rm -f $(STAGING_DIR_HOST)/bin/mkfs.jffs2
 endef

 $(eval $(call HostBuild))
--- a/tools/patch-cmdline/Makefile
+++ b/tools/patch-cmdline/Makefile
@ -8,27 +8,18 @@ include $(TOPDIR)/rules.mk

 PKG_NAME:=patch-cmdline

-PKG_BUILD_DIR:=$(TOOL_BUILD_DIR)/$(PKG_NAME)
-
 include $(INCLUDE_DIR)/host-build.mk

-OS:=$(shell uname)
-ifeq ($(HOST_OS),Darwin)
-  CFLAGS += -I./include
-endif
-CFLAGS += -I $(TOPDIR)/tools/include -include endian.h
-
 define Build/Compile
-	$(CC) $(CFLAGS) -o $(PKG_BUILD_DIR)/$(PKG_NAME) src/$(PKG_NAME).c
+	$(HOSTCC) $(HOST_CFLAGS) -include endian.h -o $(PKG_BUILD_DIR)/$(PKG_NAME) src/$(PKG_NAME).c
 endef

 define Build/Install
-	mkdir -p $(STAGING_DIR)/bin
-	$(CP) $(PKG_BUILD_DIR)/patch-cmdline $(STAGING_DIR)/bin/
+	$(CP) $(PKG_BUILD_DIR)/patch-cmdline $(STAGING_DIR_HOST)/bin/
 endef

 define Build/Clean
-	-rm -f $(STAGING_DIR)/bin/patch-cmdline
+	rm -f $(STAGING_DIR_HOST)/bin/patch-cmdline
 endef

 $(eval $(call HostBuild))
--- a/tools/sed/Makefile
+++ b/tools/sed/Makefile
@ -13,35 +13,20 @@ PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=ftp://ftp.gnu.org/gnu/$(PKG_NAME)
 PKG_MD5SUM:=928f0e06422f414091917401f1a834d0
 PKG_CAT:=zcat
-
-PKG_BUILD_DIR:=$(TOOL_BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
+export SED:=

 include $(INCLUDE_DIR)/host-build.mk

-define Build/Configure
-	(cd $(PKG_BUILD_DIR); rm -rf config.cache; \
-		SHELL="$(BASH)" \
-		./configure \
-		--prefix=$(STAGING_DIR) \
-		--prefix=/usr \
-	);
-endef
-
 define Build/Compile
 	$(MAKE) -C $(PKG_BUILD_DIR) SHELL="$(BASH)"
 endef

 define Build/Install
-	@if [ -L $(STAGING_DIR)/bin/sed ] ; then \
-		rm -f $(STAGING_DIR)/bin/sed; fi;
-	@if [ ! -f $(STAGING_DIR)/bin/sed -o $(STAGING_DIR)/bin/sed -ot $(PKG_BUILD_DIR)/sed/sed ]; then \
-	    set -x; \
-	    mkdir -p $(STAGING_DIR)/bin; \
-	    $(MAKE) DESTDIR=$(STAGING_DIR) -C $(PKG_BUILD_DIR) install; \
-	    mv $(STAGING_DIR)/usr/bin/sed $(STAGING_DIR)/bin/; \
-	    rm -rf $(STAGING_DIR)/share/locale $(STAGING_DIR)/usr/info \
-		    $(STAGING_DIR)/usr/man $(STAGING_DIR)/usr/share/doc; \
-	fi
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/sed/sed $(STAGING_DIR_HOST)/bin/
+endef
+
+define Build/Clean
+	rm -f $(STAGING_DIR_HOST)/bin/sed
 endef

 $(eval $(call HostBuild))
--- a/tools/squashfs/Makefile
+++ b/tools/squashfs/Makefile
@ -14,21 +14,22 @@ PKG_SOURCE_URL:=@SF/squashfs
 PKG_MD5SUM:=9fd05d0bfbb712f5fb95edafea5bc733
 PKG_CAT:=zcat

-PKG_BUILD_DIR:=$(TOOL_BUILD_DIR)/$(PKG_NAME)$(PKG_VERSION)
+PKG_BUILD_DIR:=$(BUILD_DIR_HOST)/$(PKG_NAME)$(PKG_VERSION)

 include $(INCLUDE_DIR)/host-build.mk

 define Build/Compile
-	$(MAKE) -C $(PKG_BUILD_DIR)/squashfs-tools mksquashfs-lzma LZMAPATH=$(STAGING_DIR)/host/lib
+	$(MAKE) -C $(PKG_BUILD_DIR)/squashfs-tools \
+		LZMAPATH=$(STAGING_DIR_HOST)/lib \
+		mksquashfs-lzma 
 endef

 define Build/Install
-	mkdir -p $(STAGING_DIR)/bin
-	$(CP) $(PKG_BUILD_DIR)/squashfs-tools/mksquashfs-lzma $(STAGING_DIR)/bin/
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/squashfs-tools/mksquashfs-lzma $(STAGING_DIR_HOST)/bin/
 endef

 define Build/Clean
-	rm -f $(STAGING_DIR)/bin/mksquashfs-lzma
+	rm -f $(STAGING_DIR_HOST)/bin/mksquashfs-lzma
 endef

 $(eval $(call HostBuild))
--- a/tools/sstrip/Makefile
+++ b/tools/sstrip/Makefile
@ -7,27 +7,19 @@
 include $(TOPDIR)/rules.mk

 PKG_NAME:=sstrip
-PKG_BUILD_DIR:=$(TOOL_BUILD_DIR)/sstrip

 include $(INCLUDE_DIR)/host-build.mk

-OS:=$(shell uname)
-ifeq ($(HOST_OS),Darwin)
-  CFLAGS += -I./include
-endif
-CFLAGS += -I $(TOPDIR)/tools/include -include endian.h
-
 define Build/Compile
-	$(CC) $(CFLAGS) -o $(PKG_BUILD_DIR)/sstrip src/sstrip.c
+	$(CC) $(HOST_CFLAGS) -include endian.h -o $(PKG_BUILD_DIR)/sstrip src/sstrip.c
 endef

 define Build/Install
-	mkdir -p $(STAGING_DIR)/bin
-	$(CP) $(PKG_BUILD_DIR)/sstrip $(STAGING_DIR)/bin/
+	$(CP) $(PKG_BUILD_DIR)/sstrip $(STAGING_DIR_HOST)/bin/
 endef

 define Build/Clean
-	rm -f $(STAGING_DIR)/bin/sstrip
+	rm -f $(STAGING_DIR_HOST)/bin/sstrip
 endef

 $(eval $(call HostBuild))