+#
+# 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 toolchain
-include $(TOPDIR)/rules.mk
-TARGETS:=sed utils binutils gcc uClibc ipkg-utils gdb libnotimpl
-
-TARGETS_INSTALL:=$(patsubst %,%-install,$(TARGETS))
-TARGETS_CLEAN:=$(patsubst %,%-clean,$(TARGETS))
-
-all: install
-install: $(TARGETS_INSTALL)
-clean: $(TARGETS_CLEAN)
-
-uClibc-prepare: kernel-headers-prepare sed-install utils-install
-binutils-prepare: uClibc-prepare
-gcc-prepare: binutils-install
-uClibc-compile: gcc-prepare
-gcc-compile: uClibc-install
-
-TOOLCHAIN_STAMP_DIR:=$(STAGING_DIR)/stampfiles
-
-$(TOOLCHAIN_STAMP_DIR):
- mkdir -p $(TOOLCHAIN_STAMP_DIR)
-
-$(STAGING_DIR):
- @mkdir -p $(STAGING_DIR)/lib
- @mkdir -p $(STAGING_DIR)/include
- @mkdir -p $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)
- @ln -sf ../lib $(STAGING_DIR)/$(REAL_GNU_TARGET_NAME)/lib
-
-$(TOOL_BUILD_DIR):
- @mkdir -p $(TOOL_BUILD_DIR)
-
-%-prepare: $(TOOLCHAIN_STAMP_DIR) $(STAGING_DIR) $(TOOL_BUILD_DIR)
- @[ -f $(TOOLCHAIN_STAMP_DIR)/.toolchain_$@ ] || { \
- $(MAKE) -C $(patsubst %-prepare,%,$@) prepare; \
- }
- @touch $(TOOLCHAIN_STAMP_DIR)/.toolchain_$@
-
-%-compile: %-prepare
- @[ -f $(TOOLCHAIN_STAMP_DIR)/.toolchain_$@ ] || { \
- $(MAKE) -C $(patsubst %-compile,%,$@) compile; \
- }
- @touch $(TOOLCHAIN_STAMP_DIR)/.toolchain_$@
-
-%-install: %-compile
- @[ -f $(TOOLCHAIN_STAMP_DIR)/.toolchain_$@ ] || { \
- $(MAKE) -C $(patsubst %-install,%,$@) install; \
- }
- @touch $(TOOLCHAIN_STAMP_DIR)/.toolchain_$@
-
-%-clean:
- @$(MAKE) -C $(patsubst %-clean,%,$@) clean
- @rm -f $(TOOLCHAIN_STAMP_DIR)/.toolchain_$(patsubst %-clean,%,$@)-*
+#
+curdir:=toolchain
+
+# subdirectories to descend into
+$(curdir)/builddirs := kernel-headers $(if $(CONFIG_GDB),gdb) $(if $(CONFIG_NATIVE_TOOLCHAIN),,binutils gcc uClibc)
+$(curdir)/builddirs-compile:=. $(filter-out kernel-headers,$($(curdir)/builddirs))
+$(curdir)/builddirs-install:=$($(curdir)/builddirs-compile)
+
+# builddir dependencies
+$(curdir)/uClibc/prepare:=$(curdir)/kernel-headers/prepare
+ifeq ($(CONFIG_NATIVE_TOOLCHAIN),)
+ $(curdir)/binutils/prepare:=$(curdir)/uClibc/prepare
+ $(curdir)/gcc/prepare:=$(curdir)/binutils/install
+ $(curdir)/uClibc/compile:=$(curdir)/gcc/compile
+endif
+$(curdir)/gcc/install:=$(curdir)/uClibc/install
+
+# prerequisites for the individual targets
+$(curdir)/ := .config prereq
+$(curdir)//prepare = $(STAGING_DIR)/include-host/.done
+$(curdir)//compile = $(1)/prepare
+$(curdir)//install = $(1)/compile
+
+$(eval $(call stampfile,$(curdir),toolchain,install))
+$(eval $(call subdir,$(curdir)))