BUILD_B43_TOOLS = y
endif
-tools-$(BUILD_TOOLCHAIN) += gmp mpfr mpc libelf
+tools-$(BUILD_TOOLCHAIN) += gmp mpfr mpc libelf expat
tools-y += m4 libtool autoconf automake flex bison pkg-config sed mklibs
-tools-y += sstrip ipkg-utils genext2fs e2fsprogs mtd-utils mkimage
+tools-y += sstrip make-ext4fs e2fsprogs mtd-utils mkimage
tools-y += firmware-utils patch-image patch quilt yaffs2 flock padjffs2
tools-y += mm-macros missing-macros xz cmake scons bc findutils gengetopt patchelf
tools-$(CONFIG_TARGET_orion_generic) += wrt350nv2-builder upslug2
$(curdir)/gengetopt/compile := $(curdir)/libtool/install
$(curdir)/patchelf/compile := $(curdir)/libtool/install
-ifneq ($(CONFIG_CCACHE),)
-$(foreach tool, $(tools-y), $(eval $(curdir)/$(tool)/compile += $(curdir)/ccache/install))
+ifneq ($(CONFIG_CCACHE)$(CONFIG_SDK),)
+$(foreach tool, $(filter-out patch,$(tools-y)), $(eval $(curdir)/$(tool)/compile += $(curdir)/ccache/install))
tools-y += ccache
endif