OpenVoiceOS/Makefile

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Makefile
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RELEASE_DIR = release
BUILDROOT=buildroot
BUILDROOT_EXTERNAL=buildroot-external
DEFCONFIG_DIR = $(BUILDROOT_EXTERNAL)/configs
TARGETS := $(notdir $(patsubst %_defconfig,%,$(wildcard $(DEFCONFIG_DIR)/*_defconfig)))
TARGETS_CONFIG := $(notdir $(patsubst %_defconfig,%-config,$(wildcard $(DEFCONFIG_DIR)/*_defconfig)))
.NOTPARALLEL: $(TARGETS) $(TARGETS_CONFIG) all
.PHONY: $(TARGETS) $(TARGETS_CONFIG) all clean help
all: $(TARGETS)
$(RELEASE_DIR):
mkdir -p $(RELEASE_DIR)
$(TARGETS_CONFIG): %-config:
@echo "config $*"
$(MAKE) -C $(BUILDROOT) BR2_EXTERNAL=../$(BUILDROOT_EXTERNAL) "$*_defconfig"
$(TARGETS): %: $(RELEASE_DIR) %-config
@echo "build $@"
$(MAKE) -C $(BUILDROOT) BR2_EXTERNAL=../$(BUILDROOT_EXTERNAL) 2>&1 | tee logs/buildroot_$@_output.txt
cp -f $(BUILDROOT)/output/images/sdcard.img $(RELEASE_DIR)/OpenVoiceOS_$@.img
rm $(RELEASE_DIR)/OpenVoiceOS_$@.img.xz
xz -3 -T0 $(RELEASE_DIR)/OpenVoiceOS_$@.img
# Do not clean when building for one target
ifneq ($(words $(filter $(TARGETS),$(MAKECMDGOALS))), 1)
@echo "clean $@"
$(MAKE) -C $(BUILDROOT) BR2_EXTERNAL=../$(BUILDROOT_EXTERNAL) clean
endif
@echo "finished $@"
clean:
$(MAKE) -C $(BUILDROOT) BR2_EXTERNAL=../$(BUILDROOT_EXTERNAL) clean
menuconfig:
$(MAKE) -C $(BUILDROOT) BR2_EXTERNAL=../$(BUILDROOT_EXTERNAL) menuconfig
savedefconfig:
$(MAKE) -C $(BUILDROOT) BR2_EXTERNAL=../$(BUILDROOT_EXTERNAL) savedefconfig
help:
@echo "Supported targets: $(TARGETS)"
@echo "Run 'make <target>' to build a target image."
@echo "Run 'make all' to build all target images."
@echo "Run 'make clean' to clean the build output."
@echo "Run 'make <target>-config' to configure OpenVoiceOS for a target."
@echo "Run 'make menuconfig' to update current config utilising a menu based program."
@echo "Run 'make savedefconfig' to save current config back to config directory."