#
#    Copyright (c) 2010-2012 Nest Labs, 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 Boost, a collection of open
#      source libraries that extend the functionality of the C++ standard
#      library.
#

BuildConfigSpecialized	:= No
BuildProductSpecialized := Yes
EnableParallel  = Yes

include pre.mak

PackageName		:= boost

PackageExtension	:= tar.bz2
PackageSeparator	:= _

PackagePatchArgs	:= -p1

PackageArchive		:= $(PackageName).$(PackageExtension)
PackageSourceDir	:= $(PackageName)$(PackageSeparator)$(PackageVersion)

CleanPaths		+= $(PackageLicenseFile)

TpsDir			:= sw/tps

IcuDir			:= $(TpsDir)/icu
IcuSearchPath		:= $(call GenerateResultPaths,$(IcuDir),usr)

# For the short-term, we are always building with GCC even though the
# actual tool chain may be some repackaged version of GCC. So, just
# specify that.

BoostToolset		:= gcc

# We do not want versioned headers and libraries, so specify the
# 'system' layout. Also, we do not want all the various combinations
# of shared/static, release/debug, stripped/unstripped and
# non-threaded/threaded libraries, so just specify 'minimal'.

BoostJamConfig		+= --layout=system \
			   --build-type=minimal \
			   -sICU_PATH=$(IcuSearchPath)

# If ForceLibStdCPP is set, tell boost to use libstdc++ instead of
# the compiler default
ifeq ($(call IsYes,$(ForceLibStdCPP)),Y)
BoostJamConfig		+= cxxflags="-stdlib=libstdc++" linkflags="-stdlib=libstdc++"
endif


BoostLibraries		= date_time	\
			  filesystem	\
			  regex		\
			  system	\
			  test		\
			  signals	\
			  thread
BoostLibrariesList	= $(subst $(Space),$(Comma),$(strip $(BoostLibraries)))

BoostConfigure		= $(call GenerateBuildPaths,bootstrap.sh)
BoostProjectConfig	= $(call GenerateBuildPaths,project-config.jam)

all: $(PackageDefaultGoal)

# Generate the package license contents.

$(PackageSourceDir)/LICENSE_1_0.txt: source

$(PackageLicenseFile): $(PackageSourceDir)/LICENSE_1_0.txt
	$(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

# Generate the package build makefile.

$(BoostConfigure): | $(PackageSourceDir) $(BuildDirectory)
	$(call create-links,$(CURDIR)/$(PackageSourceDir),$(BuildDirectory))

# Generate the build-specific makefile and user configuration. We have
# to post-process the generated user configuration since Boost's
# adominable build system has no other way to override the actual C++
# compiler executable used (see http://goodliffe.blogspot.com/2008/05/
# cross-compiling-boost.html and boost/docs/html/bbv2/
# tasks.html#bbv2.tasks.crosscompile).

$(BoostProjectConfig): $(BoostConfigure)
	$(Verbose)cd $(BuildDirectory) && \
	./bootstrap.sh \
	--prefix=$(ResultDirectory) \
	--with-toolset=$(BoostToolset) \
	--with-icu=$(IcuSearchPath) \
	--with-libraries=$(BoostLibrariesList)
	$(Verbose)$(SED) -e "s#^\([[:space:]]*using\)[[:space:]]\{1,\}\($(BoostToolset)\)[[:space:]]\{1,\};#\1 \2 : $(TargetProcArch) : $(CXX) $(CPPOPTFLAGS) ;#g" \
	< $(@) > $(@).N || $(RM) -f $(@)
	$(Verbose)mv -f $(@) $(@).O
	$(Verbose)mv -f $(@).N $(@)

# Configure the source for building.

.PHONY: configure
configure: source $(BoostProjectConfig)

# Build the source.

.PHONY: build
build: configure
	$(Verbose)cd $(BuildDirectory) && \
	./bjam $(JOBSFLAG) $(BoostJamConfig)

# Stage the build to a temporary installation area.

.PHONY: stage
stage: build | $(ResultDirectory)
	$(Verbose)cd $(BuildDirectory) && \
	INSTALL="$(INSTALL) $(INSTALLFLAGS)" && \
	./bjam $(BoostJamConfig) \
	install --prefix=$(ResultDirectory)

clean:
	$(Verbose)$(RM) $(RMFLAGS) -r $(PackageSourceDir)
	$(Verbose)$(RM) $(RMFLAGS) -r $(BuildDirectory)
	$(Verbose)$(RM) $(RMFLAGS) -r $(ResultDirectory)

include post.mak