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################################################################################
# Embtoolkit
# Copyright(C) 2009-2011 Abdoulaye Walsimou GAYE. All rights reserved.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
################################################################################
#
# \file         uclibc.mk
# \brief	uclibc.mk of Embtoolkit
# \author       Abdoulaye Walsimou GAYE <awg@embtoolkit.org>
# \date         August 2009
################################################################################

UCLIBC_VERSION := $(subst ",,$(strip $(CONFIG_EMBTK_UCLIBC_VERSION_STRING)))
UCLIBC_SITE := http://www.uclibc.org/downloads
UCLIBC_PATCH_SITE := ftp://ftp.embtoolkit.org/embtoolkit.org/uclibc/$(UCLIBC_VERSION)
UCLIBC_GIT_SITE := http://git.busybox.net/uClibc
UCLIBC_GIT_BRANCH := $(subst ",,$(strip $(CONFIG_EMBTK_UCLIBC_GIT_BRANCH)))
UCLIBC_GIT_REVISION := $(subst ",,$(strip $(CONFIG_EMBTK_UCLIBC_GIT_REVISION)))
UCLIBC_PACKAGE := uClibc-$(UCLIBC_VERSION).tar.bz2
UCLIBC_BUILD_DIR := $(TOOLS_BUILD)/uClibc-$(UCLIBC_VERSION)

EMBTK_UCLIBC_CFLAGS := $(TARGET_CFLAGS) $(EMBTK_TARGET_MCPU)
EMBTK_UCLIBC_CFLAGS += $(EMBTK_TARGET_ABI) $(EMBTK_TARGET_FLOAT_CFLAGS)
EMBTK_UCLIBC_CFLAGS += $(EMBTK_TARGET_MARCH) -pipe

uclibc_install: $(UCLIBC_BUILD_DIR)/.installed

$(UCLIBC_BUILD_DIR)/.installed: uclibc_download \
	$(UCLIBC_BUILD_DIR)/.decompressed $(UCLIBC_BUILD_DIR)/.configured
	$(call EMBTK_GENERIC_MESSAGE,"Building and installing \
	uClibc-$(UCLIBC_VERSION) ...")
	$(MAKE) -C $(UCLIBC_BUILD_DIR) oldconfig
	$(MAKE) -C $(UCLIBC_BUILD_DIR) PREFIX=$(SYSROOT)/ \
	CROSS_COMPILER_PREFIX="$(TOOLS)/bin/$(STRICT_GNU_TARGET)-" \
	SHARED_LIB_LOADER_PREFIX="/$(LIBDIR)/" \
	MULTILIB_DIR="/$(LIBDIR)/" \
	RUNTIME_PREFIX="/" DEVEL_PREFIX="/usr/" \
	KERNEL_HEADERS="$(SYSROOT)/usr/include/" \
	UCLIBC_EXTRA_CFLAGS="$(EMBTK_UCLIBC_CFLAGS)" install_headers
	$(MAKE) -C $(UCLIBC_BUILD_DIR) PREFIX=$(SYSROOT)/ \
	CROSS_COMPILER_PREFIX="$(TOOLS)/bin/$(STRICT_GNU_TARGET)-" \
	SHARED_LIB_LOADER_PREFIX="/$(LIBDIR)/" \
	MULTILIB_DIR="/$(LIBDIR)/" \
	RUNTIME_PREFIX="/" DEVEL_PREFIX="/usr/" \
	KERNEL_HEADERS="$(SYSROOT)/usr/include/" \
	UCLIBC_EXTRA_CFLAGS="$(EMBTK_UCLIBC_CFLAGS)" install

uclibc_download:
	$(call EMBTK_GENERIC_MESSAGE,"downloading uClibc-$(UCLIBC_VERSION) \
	if necessary ...")
ifeq ($(CONFIG_EMBTK_UCLIBC_VERSION_GIT),y)
	@test -e $(EMBTK_ROOT)/src/uClibc-git || \
	git clone $(UCLIBC_GIT_SITE) $(EMBTK_ROOT)/src/uClibc-git
ifneq ($(UCLIBC_GIT_BRANCH),master)
	@-cd $(EMBTK_ROOT)/src/uClibc-git; \
	git checkout master; \
	git pull; \
	git branch -D $(UCLIBC_GIT_BRANCH); \
	git checkout -b $(UCLIBC_GIT_BRANCH) origin/$(UCLIBC_GIT_BRANCH)
endif
	@cd $(EMBTK_ROOT)/src/uClibc-git; \
	git pull; git archive \
	--prefix=uClibc-$(UCLIBC_VERSION)/ $(UCLIBC_GIT_REVISION) | \
	bzip2 -9 > $(DOWNLOAD_DIR)/$(UCLIBC_PACKAGE)
else
	@test -e $(DOWNLOAD_DIR)/$(UCLIBC_PACKAGE) || \
	wget $(UCLIBC_SITE)/$(UCLIBC_PACKAGE) \
	-O $(DOWNLOAD_DIR)/$(UCLIBC_PACKAGE)
endif
ifeq ($(CONFIG_EMBTK_UCLIBC_NEED_PATCH),y)
	@test -e $(DOWNLOAD_DIR)/uClibc-$(UCLIBC_VERSION).patch || \
	wget -O $(DOWNLOAD_DIR)/uClibc-$(UCLIBC_VERSION).patch \
	$(UCLIBC_PATCH_SITE)/uClibc-$(UCLIBC_VERSION)-*.patch
endif

$(UCLIBC_BUILD_DIR)/.decompressed:
	$(call EMBTK_GENERIC_MESSAGE,"Decompressing \
	uClibc-$(UCLIBC_VERSION) ...")
	$(Q)tar -C $(TOOLS_BUILD) -xjvf $(DOWNLOAD_DIR)/$(UCLIBC_PACKAGE)
ifeq ($(CONFIG_EMBTK_UCLIBC_NEED_PATCH),y)
	$(Q)cd $(UCLIBC_BUILD_DIR); \
	patch -p1 < $(DOWNLOAD_DIR)/uClibc-$(UCLIBC_VERSION).patch
endif

$(UCLIBC_BUILD_DIR)/.configured:
	$(call EMBTK_GENERIC_MESSAGE,"Configuring \
	uClibc-$(UCLIBC_VERSION) ...")
	$(Q)grep "CONFIG_KEMBTK_UCLIBC_" $(EMBTK_ROOT)/.config | \
	sed -e 's/CONFIG_KEMBTK_UCLIBC_*//g' \
	> $(UCLIBC_BUILD_DIR)/.config