| # | 
 | #    Copyright (c) 2010-2011 Nest, Inc. | 
 | #    All rights reserved. | 
 | # | 
 | #    This document is the property of Nest. It is considered | 
 | #    confidential and proprietary information. | 
 | # | 
 | #    This document may not be reproduced or transmitted in any form, | 
 | #    in whole or in part, without the express written permission of | 
 | #    Nest. | 
 | # | 
 | #    Description: | 
 | #      This file is the makefile for embedded Linux "Swiss Army Knife" | 
 | #      application, BusyBox. | 
 | # | 
 |  | 
 | include pre.mak | 
 |  | 
 | PackageName		:= busybox | 
 |  | 
 | PackageExtension	:= tar.bz2 | 
 | PackageSeparator	:= - | 
 |  | 
 | PackagePatchArgs	:= -p1 | 
 |  | 
 | PackageArchive		:= $(PackageName).$(PackageExtension) | 
 | PackageSourceDir	:= $(PackageName)$(PackageSeparator)$(PackageVersion) | 
 |  | 
 | PackageBuildMakefile	= $(call GenerateBuildPaths,Makefile) | 
 |  | 
 | CleanPaths		+= $(PackageLicenseFile) | 
 |  | 
 | all: $(PackageDefaultGoal) | 
 |  | 
 | # Generate the package license contents. | 
 |  | 
 | $(PackageSourceDir)/LICENSE: source | 
 |  | 
 | $(PackageLicenseFile): $(PackageSourceDir)/LICENSE | 
 | 	$(copy-result) | 
 |  | 
 | # Extract the source from the archive and apply patches, if any. | 
 |  | 
 | $(PackageSourceDir): $(PackageArchive) $(PackagePatchPaths) | 
 | 	$(expand-and-patch-package) | 
 |  | 
 | # Prepare the sources. | 
 |  | 
 | .PHONY: source | 
 | source: | $(PackageSourceDir) | 
 |  | 
 | # Patch the sources, if necessary. | 
 |  | 
 | .PHONY: patch | 
 | patch: source | 
 |  | 
 | # BusyBox has no way of explicitly setting CC, LD, OBJCOPY, et al and | 
 | # instead relies on the value of CROSS_COMPILE. Consequently, we have | 
 | # to ensure that 'ToolBinDir' is in 'PATH' so that the kernel build | 
 | # infrastructure can find $(CROSS_COMPILE)gcc, $(CROSS_COMPILE)ld, et | 
 | # al. | 
 |  | 
 | configure build stage: PATH := $(PATH):$(ToolBinDir) | 
 |  | 
 | # Generate the package build makefile and default configuration based | 
 | # on the build configuration. | 
 |  | 
 | $(PackageBuildMakefile): $(CURDIR)/configs/$(BuildConfig)_defconfig | $(PackageSourceDir) $(BuildDirectory) | 
 | 	$(Verbose)$(MAKE) -C $(PackageSourceDir) O=$(CURDIR)/$(BuildDirectory) $< | 
 |  | 
 | # Configure the source for building. | 
 |  | 
 | .PHONY: configure | 
 | configure: source $(PackageBuildMakefile) | 
 |  | 
 | # Build the source. | 
 |  | 
 | .PHONY: build | 
 | build: configure | 
 | 	$(Verbose)$(MAKE) -C $(BuildDirectory) busybox | 
 |  | 
 | # Stage the build to a temporary installation area. | 
 |  | 
 | .PHONY: stage | 
 | stage: build | $(ResultDirectory) | 
 | 	$(Verbose)$(MAKE) -C $(BuildDirectory) CONFIG_PREFIX=$(ResultDirectory) install | 
 |  | 
 | clean: | 
 | 	$(Verbose)$(RM) $(RMFLAGS) -r $(PackageSourceDir) | 
 | 	$(Verbose)$(RM) $(RMFLAGS) -r $(BuildDirectory) | 
 | 	$(Verbose)$(RM) $(RMFLAGS) -r $(ResultDirectory) | 
 |  | 
 | include post.mak |