sonic-buildimage/src/lldpd/Makefile

.ONESHELL:
SHELL = /bin/bash
.SHELLFLAGS += -e

MAIN_TARGET = $(LLDPD)
DERIVED_TARGETS = $(LIBLLDPCTL)

$(addprefix $(DEST)/, $(MAIN_TARGET)): $(DEST)/% :
	# Remove any stale files
	rm -rf ./lldpd

	# Clone lldpd repo
	git clone https://github.com/vincentbernat/lldpd.git
	pushd ./lldpd

	# Reset HEAD to the commit of the proper tag
	# NOTE: Using "git checkout <tag_name>" here detaches our HEAD,
	# which stg doesn't like, so we use this method instead
	git reset --hard $(LLDPD_VERSION)

	# Apply patches
	stg init
	stg import -s ../patch/series

	# Build source and Debian packages
	env "with_netlink_receive_bufsize=1024*1024" dpkg-buildpackage -rfakeroot -b -us -uc -j$(SONIC_CONFIG_MAKE_JOBS)
	popd

	# Move the newly-built .deb packages to the destination directory
	mv $* $(DERIVED_TARGETS) $(DEST)/

$(addprefix $(DEST)/, $(DERIVED_TARGETS)): $(DEST)/% : $(DEST)/$(MAIN_TARGET)