#
#    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 the Ext2 File System utilities
#      libraries, an important one of which is the Universally Unique
#      Identifier (UUID) library.
#

BuildConfigSpecialized	:= No
BuildProductSpecialized	:= No

include pre.mak

PackageName		:= e2fsprogs-libs

PackageExtension	:= tar.gz
PackageSeparator	:= -

PackagePatchArgs	:= -p1

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

PackageBuildMakefile	= $(call GenerateBuildPaths,Makefile)

CleanPaths		+= $(PackageLicenseFile)

all: $(PackageDefaultGoal)

# Generate the package license contents.

$(PackageLicensePaths): source

$(PackageSourceDir)/COPYING: source

$(PackageLicenseFile): $(PackageSourceDir)/COPYING
	$(copy-result)

# Extract the source from the archive and apply patches, if any.

$(PackageSourceDir): $(PackageArchive) $(PackagePatchPaths) | $(BuildDirectory)
	$(call expand-archive,$(PackageArchive),$(BuildDirectory))
	$(call patch-directory,$(@),$(PackagePatchArgs),$(PackagePatchPaths))
	$(Verbose)touch $(@)

# Prepare the sources.

.PHONY: source
source: | $(PackageSourceDir)

# Patch the sources, if necessary.

.PHONY: patch
patch: source

# The host config of OSM requires shared libraries.
ifneq ($(CONFIG_OSM_HOST),1)
PackageConfigFlags = --disable-elf-shlibs --disable-bsd-shlibs
else
PackageConfigFlags = --enable-elf-shlibs
endif

# Generate the package build makefile.

$(PackageBuildMakefile): | $(PackageSourceDir) $(BuildDirectory) $(ResultDirectory)
	$(Verbose)cd $(BuildDirectory) && \
	$(CURDIR)/$(PackageSourceDir)/configure \
	CC="$(CC)" CXX="$(CXX)" AR=$(AR) RANLIB=$(RANLIB) STRIP=$(STRIP) \
	--build=$(HostTuple) \
	--host=$(TargetTuple) \
	$(PackageConfigFlags) \
	--prefix=/usr \
	--sysconfdir=/etc \
	--localstatedir=/var

# Configure the source for building.

.PHONY: configure
configure: source $(PackageBuildMakefile)

# Build the source.
#
# We have to unset MAKEFLAGS because e2fsprog's Makefile wants
# to set it for its own purposes.

.PHONY: build
build: configure
	$(Verbose)unset MAKEFLAGS && \
	$(MAKE) $(JOBSFLAG) -C $(BuildDirectory) all

# Stage the build to a temporary installation area.
#
# We have to unset MAKEFLAGS because e2fsprog's Makefile wants
# to set it for its own purposes.
#
# We explictly remove 'libuuid.la' and 'libuuid++.la' because some
# packages that depend on libuuid use libtool. If libtool finds a
# '*.la' file for a library, it uses the value of 'libdir=<dir>' it
# finds. In our case, since '--prefix=/usr' this value is
# '/usr/lib'. It then resolves '-luuid' to '/usr/lib/libuuid.so'. In a
# cross-compilation environment, this is likely to be neither the
# right architecture nor the right version to link against. In short,
# we lose.
#
# We could also handle this by removing DESTDIR and setting the prefix
# to $(ResultDirectory); however, that results in libtool hard-coding
# $(ResultDirectory) as the RPATH in the linked executables which is
# NOT what we want either. We lose again.
#
# By removing the '*.la' file, we win by ensuring neither a misdirected
# link nor an RPATH.

.PHONY: stage
stage: build | $(ResultDirectory)
	$(Verbose)unset MAKEFLAGS && \
	$(MAKE) $(JOBSFLAG) -C $(BuildDirectory) DESTDIR=$(ResultDirectory) install
	$(Verbose)$(RM) $(RMFLAGS) $(call GenerateResultPaths,,usr/lib/libuuid.la)
	$(Verbose)$(RM) $(RMFLAGS) $(call GenerateResultPaths,,usr/lib/libuuid++.la)

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

include post.mak