-include $(TOPDIR)/rules.mk
-TARGETS-y:=sed sstrip ipkg-utils ext2fs squashfs mtd-utils lzma mkimage firmware-utils
-
-TARGETS_DOWNLOAD:=$(patsubst %,%-download,$(TARGETS-y))
-TARGETS_PREPARE:=$(patsubst %,%-prepare,$(TARGETS-y))
-TARGETS_COMPILE:=$(patsubst %,%-compile,$(TARGETS-y))
-TARGETS_INSTALL:=$(patsubst %,%-install,$(TARGETS-y))
-TARGETS_CLEAN:=$(patsubst %,%-clean,$(TARGETS-y))
-STAMP:=$(STAGING_DIR)/stampfiles/.tools_installed
-
-all: install
-download: $(TARGETS_DOWNLOAD)
-compile: $(TARGETS_COMPILE)
-install: $(STAMP)
-clean: $(TARGETS_CLEAN)
-
-squashfs-compile: lzma-install
-
-ifneq ($(shell $(SCRIPT_DIR)/timestamp.pl -p . $(STAMP)),$(STAMP))
- $(STAMP): $(TARGETS_INSTALL)
+curdir:=tools
+
+# subdirectories to descend into
+tools-y :=
+ifeq ($(CONFIG_EXTERNAL_TOOLCHAIN)$(CONFIG_GCC_LLVM),)
+tools-y += gmp mpfr mpc libelf
+endif
+tools-y += m4 libtool autoconf automake flex bison pkg-config sed mklibs
+tools-y += sstrip ipkg-utils genext2fs e2fsprogs mtd-utils mkimage
+tools-y += firmware-utils patch-cmdline quilt yaffs2 flock padjffs2
+tools-y += mm-macros xorg-macros xfce-macros missing-macros xz cmake
+tools-$(CONFIG_TARGET_orion_generic) += wrt350nv2-builder upslug2
+tools-$(CONFIG_powerpc) += upx
+tools-$(CONFIG_TARGET_x86) += qemu
+ifneq ($(CONFIG_TARGET_ar71xx),)
+tools-y += lzma-old squashfs
+endif
+tools-y += lzma squashfs4
+
+ifdef CONFIG_GCC_USE_GRAPHITE
+ ifeq ($(CONFIG_GCC_USE_SYSTEM_PPL_CLOOG),)
+ tools-y += ppl cloog
+ $(curdir)/cloog/compile := $(curdir)/ppl/install
+ endif
+endif
+
+# builddir dependencies
+$(curdir)/bison/compile := $(curdir)/flex/install
+$(curdir)/pkg-config/compile := $(curdir)/sed/install
+$(curdir)/libtool/compile := $(curdir)/sed/install
+$(curdir)/squashfs/compile := $(curdir)/lzma-old/install
+$(curdir)/squashfs4/compile := $(curdir)/xz/install
+$(curdir)/quilt/compile := $(curdir)/sed/install $(curdir)/autoconf/install
+$(curdir)/dtc/compile := $(curdir)/bison/install
+$(curdir)/autoconf/compile := $(curdir)/m4/install $(curdir)/libtool/install
+$(curdir)/automake/compile := $(curdir)/m4/install $(curdir)/autoconf/install $(curdir)/pkg-config/install
+$(curdir)/gmp/compile := $(curdir)/automake/install
+$(curdir)/mpc/compile := $(curdir)/mpfr/install $(curdir)/gmp/install
+$(curdir)/mpfr/compile := $(curdir)/gmp/install
+$(curdir)/ppl/compile := $(curdir)/gmp/install
+$(curdir)/cloog/compile := $(curdir)/ppl/install
+$(curdir)/mtd-utils/compile := $(curdir)/e2fsprogs/install $(curdir)/xz/install
+$(curdir)/mkimage/compile := $(curdir)/sed/install
+$(curdir)/qemu/compile := $(curdir)/e2fsprogs/install
+$(curdir)/upslug2/compile := $(curdir)/automake/install
+$(curdir)/mm-macros/compile := $(curdir)/automake/install
+$(curdir)/xorg-macros/compile := $(curdir)/automake/install
+$(curdir)/xfce-macros/compile := $(curdir)/automake/install
+$(curdir)/missing-macros/compile := $(curdir)/automake/install
+$(curdir)/e2fsprogs/compile := $(curdir)/automake/install
+$(curdir)/libelf/compile := $(curdir)/automake/install
+
+ifneq ($(CONFIG_CCACHE),)
+$(foreach tool, $(tools-y), $(eval $(curdir)/$(tool)/compile += $(curdir)/ccache/install))
+tools-y += ccache