+$(curdir)/bison/compile := $(curdir)/flex/install
+$(curdir)/flex/compile := $(curdir)/libtool/install
+$(curdir)/libtool/compile := $(curdir)/m4/install $(curdir)/autoconf/install $(curdir)/automake/install $(curdir)/missing-macros/install
+$(curdir)/squashfs/compile := $(curdir)/lzma-old/install
+$(curdir)/squashfs4/compile := $(curdir)/xz/install
+$(curdir)/quilt/compile := $(curdir)/autoconf/install $(curdir)/findutils/install
+$(curdir)/autoconf/compile := $(curdir)/m4/install
+$(curdir)/automake/compile := $(curdir)/m4/install $(curdir)/autoconf/install $(curdir)/pkg-config/install $(curdir)/xz/install
+$(curdir)/gmp/compile := $(curdir)/libtool/install
+$(curdir)/mpc/compile := $(curdir)/mpfr/install $(curdir)/gmp/install
+$(curdir)/mpfr/compile := $(curdir)/gmp/install
+$(curdir)/mtd-utils/compile := $(curdir)/e2fsprogs/install
+$(curdir)/mklibs/compile := $(curdir)/libtool/install
+$(curdir)/qemu/compile := $(curdir)/e2fsprogs/install
+$(curdir)/upslug2/compile := $(curdir)/libtool/install
+$(curdir)/mm-macros/compile := $(curdir)/libtool/install
+$(curdir)/missing-macros/compile := $(curdir)/autoconf/install
+$(curdir)/e2fsprogs/compile := $(curdir)/libtool/install
+$(curdir)/libelf/compile := $(curdir)/libtool/install
+$(curdir)/sdcc/compile := $(curdir)/bison/install
+$(curdir)/b43-tools/compile := $(curdir)/bison/install
+$(curdir)/padjffs2/compile := $(curdir)/findutils/install
+$(curdir)/isl/compile := $(curdir)/gmp/install
+$(curdir)/bc/compile := $(curdir)/bison/install
+$(curdir)/findutils/compile := $(curdir)/bison/install
+$(curdir)/gengetopt/compile := $(curdir)/libtool/install
+$(curdir)/patchelf/compile := $(curdir)/libtool/install
+$(curdir)/dosfstools/compile := $(curdir)/autoconf/install $(curdir)/automake/install
+$(curdir)/libressl/compile := $(curdir)/pkg-config/install
+$(curdir)/mkimage/compile += $(curdir)/libressl/install
+$(curdir)/firmware-utils/compile += $(curdir)/libressl/install
+$(curdir)/cmake/compile += $(curdir)/libressl/install
+
+ifneq ($(HOST_OS),Linux)
+ tools-y += coreutils
+endif
+
+ifneq ($(CONFIG_CCACHE)$(CONFIG_SDK),)
+$(foreach tool, $(filter-out xz patch,$(tools-y)), $(eval $(curdir)/$(tool)/compile += $(curdir)/ccache/install))
+tools-y += ccache
+endif
+
+# in case there is no patch tool on the host we need to make patch tool a
+# dependency for tools which have patches directory
+$(foreach tool, $(tools-y), $(if $(wildcard $(curdir)/$(tool)/patches),$(eval $(curdir)/$(tool)/compile += $(curdir)/patch/install)))
+
+$(foreach tool, $(filter-out xz,$(tools-y)), $(eval $(curdir)/$(tool)/compile += $(curdir)/xz/install))
+
+# make any tool depend on tar, xz and patch to ensure that archives can be unpacked and patched properly
+tools-core := tar xz patch
+
+$(foreach tool, $(tools-y), $(eval $(curdir)/$(tool)/compile += $(patsubst %,$(curdir)/%/install,$(tools-core))))
+tools-y += $(tools-core)
+
+# make core tools depend on sed and flock
+$(foreach tool, $(tools-core), $(eval $(curdir)/$(tool)/compile += $(curdir)/sed/install))
+
+$(curdir)/sed/compile := $(curdir)/flock/install
+tools-y += flock sed
+
+$(curdir)/builddirs := $(tools-y) $(tools-dep) $(tools-)
+$(curdir)/builddirs-default := $(tools-y)
+
+ifdef CHECK_ALL
+$(curdir)/builddirs-check:=$($(curdir)/builddirs)
+$(curdir)/builddirs-download:=$($(curdir)/builddirs)
+endif
+
+ifndef DUMP_TARGET_DB
+define PrepareStaging
+ @for dir in $(1); do ( \
+ $(if $(QUIET),,set -x;) \
+ mkdir -p "$$dir"; \
+ cd "$$dir"; \
+ mkdir -p bin lib include stamp; \
+ ); done
+endef