curdir:=tools
# subdirectories to descend into
-$(curdir)/builddirs := sed sstrip ipkg-utils genext2fs squashfs mtd-utils lzma mkimage firmware-utils patch-cmdline pkg-config automake $(if $(CONFIG_CCACHE),ccache) bison $(if $(CONFIG_powerpc),dtc) lua quilt
+tools-y := sed sstrip ipkg-utils genext2fs squashfs mtd-utils lzma mkimage firmware-utils patch-cmdline pkg-config m4 autoconf automake bison quilt yaffs2
+
+tools-$(CONFIG_CCACHE) += ccache
+tools-$(CONFIG_powerpc) += dtc
+tools-$(CONFIG_GCC_VERSION_4_3) += gmp mpfr
# builddir dependencies
$(curdir)/squashfs/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)/builddirs := $(tools-y) $(tools-dep) $(tools-)
+$(curdir)/builddirs-default := $(tools-y)
# preparatory work
$(STAGING_DIR)/.prepared: $(TMP_DIR)/.build
$(INSTALL_DATA) $(TOPDIR)/tools/include/*.h $(STAGING_DIR_HOST)/include/
touch $@
-$(curdir)//prepare = $(STAGING_DIR)/.prepared
-$(curdir)//compile = $(STAGING_DIR)/.prepared
+define PrepareCommand
+$(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)
# prerequisites for the individual targets
$(curdir)/ := .config prereq
$(curdir)//install = $(1)/compile
-$(eval $(call stampfile,$(curdir),tools,install))
+$(eval $(call stampfile,$(curdir),tools,install,,CONFIG_CCACHE CONFIG_powerpc CONFIG_GCC_VERSION_4_3))
$(eval $(call subdir,$(curdir)))