PKG_NAME=		# name of the package
PKG_URL=		# source url of the package e.g. a git repository
PKG_VERSION=	# version of the package to use e.g. a git commit/ref

ifneq ($(RIOTBOARD),)
include $(RIOTBOARD)/Makefile.base
include $(RIOTBOARD)/$(BOARD)/Makefile.include
endif

.PHONY: all clean patch distclean

all: patch
	$(MAKE) -C $(CURDIR)/$(PKG_NAME)

patch: $(CURDIR)/$(PKG_NAME)/Makefile
	# Dependancy might be changed accordingly though we think the Makefile
	# will be the first thing you want to change
	#
	# Here might not happen anything besides dependancy checks

$(CURDIR)/$(PKG_NAME)/Makefile: $(CURDIR)/$(PKG_NAME)
	# Here you apply your patch.
	$(foreach patch,$(shell ls [0-9][0-9][0-9][0-9]*.patch),cd "$<" && git am "$(patch)" || { git am --abort; exit 1; };)

$(PKG_NAME):
	# Get PKG_VERSION of package from PKG_URL
	git clone $(PKG_URL) $(PKG_NAME) && cd $(PKG_NAME) && git reset --hard $(PKG_VERSION)

clean::
	# Reset package to checkout state.
	cd $(CURDIR)/$(PKG_NAME) || true && \
		git clean -x -f && \
		git reset --hard $(PKG_VERSION)

distclean::
	rm -rf $(CURDIR)/$(PKG_NAME)