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#############################################################
#
# System Linux kernel target
#
# This uses an existing linux kernel source tree on
# your build system, and makes no effort at compiling
# anything....
#
# You will probably want to change LINUX_SOURCE to
# point to wherever you installed you kernel.
#
# -Erik
#
#############################################################
ifneq ($(filter $(TARGETS),system-linux),)
LINUX_SOURCE=/usr/src/linux
LINUX_DIR=$(BUILD_DIR)/linux
LINUX_KERNEL=$(BUILD_DIR)/buildroot-kernel
# Used by pcmcia-cs and others
LINUX_SOURCE_DIR=$(LINUX_SOURCE)
$(LINUX_DIR)/.configured:
mkdir -p $(LINUX_DIR)/include
(cd $(LINUX_DIR)/include; \
for i in $(LINUX_SOURCE)/include/*; do ln -sf $$i ; done; \
rm -f asm; \
if [ "$(ARCH)" = "powerpc" ];then \
ln -fs asm-ppc asm; \
elif [ "$(ARCH)" = "mips" ];then \
ln -fs asm-mips asm; \
elif [ "$(ARCH)" = "mipsel" ];then \
ln -fs asm-mips asm; \
elif [ "$(ARCH)" = "arm" ];then \
ln -fs asm-arm asm; \
(cd asm-arm; \
if [ ! -L proc ] ; then \
ln -fs proc-armv proc; \
ln -fs arch-ebsa285 arch; fi); \
elif [ "$(ARCH)" = "cris" ];then \
ln -fs asm-cris asm; \
else ln -fs asm-$(ARCH) asm; \
fi)
cp $(LINUX_SOURCE)/Makefile $(LINUX_DIR)/
cp $(LINUX_SOURCE)/Rules.make $(LINUX_DIR)/
touch $(LINUX_DIR)/.configured
$(LINUX_KERNEL): $(LINUX_DIR)/.configured
$(STAGING_DIR)/include/linux/version.h: $(LINUX_DIR)/.configured
mkdir -p $(STAGING_DIR)/include
rm -rf $(STAGING_DIR)/include/linux
cp -dpa $(LINUX_DIR)/include/linux $(STAGING_DIR)/include/
rm -rf $(STAGING_DIR)/include/asm
mkdir -p $(STAGING_DIR)/include/asm
cp -dpa $(LINUX_DIR)/include/asm/* $(STAGING_DIR)/include/asm/
rm -rf $(STAGING_DIR)/include/scsi
mkdir -p $(STAGING_DIR)/include/scsi
cp -dpa $(LINUX_DIR)/include/scsi/* $(STAGING_DIR)/include/scsi
touch -c $(STAGING_DIR)/include/linux/version.h
system-linux: $(STAGING_DIR)/include/linux/version.h
system-linux-clean: clean
rm -f $(LINUX_KERNEL)
rm -rf $(LINUX_DIR)
system-linux-dirclean:
rm -rf $(LINUX_DIR)
endif
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