-#
-# Copyright (C) 2006 OpenWrt.org
+#
+# Copyright (C) 2007 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
# Main makefile for the host tools
#
-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): $(TARGETS_INSTALL)
-endif
-
-$(STAMP):
- mkdir -p $(shell dirname $@)
+curdir:=tools
+
+# subdirectories to descend into
+tools-y :=
+tools-$(CONFIG_GCC_VERSION_4_3)$(CONFIG_GCC_VERSION_4_4) += gmp mpfr
+tools-y += m4 autoconf automake bison pkg-config sed
+tools-y += sstrip ipkg-utils genext2fs squashfs squashfs4 mtd-utils lzma-old mkimage
+tools-y += firmware-utils patch-cmdline quilt yaffs2
+
+tools-$(CONFIG_CCACHE) += ccache
+tools-$(CONFIG_powerpc) += dtc
+tools-dep += lzma
+
+# builddir dependencies
+$(curdir)/squashfs/compile := $(curdir)/lzma-old/install
+$(curdir)/squashfs4/compile := $(curdir)/lzma/install
+$(curdir)/quilt/compile := $(curdir)/sed/install
+$(curdir)/dtc/compile := $(curdir)/bison/install
+$(curdir)/autoconf/compile := $(curdir)/m4/install
+$(curdir)/automake/compile := $(curdir)/m4/install $(curdir)/autoconf/install
+$(curdir)/mpfr/compile := $(curdir)/gmp/install
+
+$(curdir)/builddirs := $(tools-y) $(tools-dep) $(tools-)
+$(curdir)/builddirs-default := $(tools-y)
+
+# preparatory work
+$(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 $@
-
-$(STAGING_DIR)/include-host:
- @mkdir -p $@
- @$(CP) ./include/*.h $@/
-$(TOOL_BUILD_DIR):
- @mkdir -p $@
+define PrepareCommand
+$(STAGING_DIR_HOST)/bin/$(1): $(STAGING_DIR)/.prepared
+ @mkdir -p "$$(dir $$@)"; rm -f "$$@"
+ @export FILE="$$$$(which $(2) 2>/dev/null | grep -v 'not found' | head -n1)"; [ -n "$$$$FILE" ] || { \
+ echo "Command $(1) not found."; false; \
+ }; ln -s "$$$$FILE" "$$@"
+
+endef
+
+$(eval $(call PrepareCommand,find,gfind find))
+$(eval $(call PrepareCommand,md5sum,md5sum $(SCRIPT_DIR)/md5sum))
+$(eval $(call PrepareCommand,cp,gcp cp))
+$(eval $(call PrepareCommand,stat,gstat stat))
+
+$(curdir)/cmddeps = $(patsubst %,$(STAGING_DIR_HOST)/bin/%,find md5sum cp stat)
+$(curdir)//prepare = $(STAGING_DIR)/.prepared $($(curdir)/cmddeps)
+$(curdir)//compile = $(STAGING_DIR)/.prepared $($(curdir)/cmddeps)
-$(eval $(call default_subtargets,$(STAGING_DIR)/include-host $(TOOL_BUILD_DIR)))
+# prerequisites for the individual targets
+$(curdir)/ := .config prereq
+$(curdir)//install = $(1)/compile
-ifeq ($(MAKECMDGOALS),install-targets)
-MAKEFLAGS:=$(MAKEFLAGS) -j$(CONFIG_JLEVEL)
-else
-.NOTPARALLEL:
-endif
+$(eval $(call stampfile,$(curdir),tools,install,,CONFIG_CCACHE CONFIG_powerpc CONFIG_GCC_VERSION_4_3))
+$(eval $(call subdir,$(curdir)))