pkg: ccn-lite: adapt to use pkg.mk

pkg/ccn-lite/Makefile

 PKG_NAME=ccn-lite
 PKG_URL=https://github.com/OlegHahm/ccn-lite/
 PKG_VERSION=39b1406c11de9de364220909488eebabe7e81613
-PKG_DIR=$(CURDIR)/$(PKG_NAME)
 
-.PHONY: all clean distclean
+.PHONY: all
 
 export RIOT_CFLAGS = ${CFLAGS} ${INCLUDES}
 
-all: $(PKG_DIR)/Makefile
-	"$(MAKE)" -BC $(PKG_DIR)/src lib-ccn-lite.a
-	"$(MAKE)" -BC $(PKG_DIR)/src lib-ccn-lite-utils.a
-	cp $(PKG_DIR)/src/lib-ccn-lite.a ${BINDIR}/ccn-lite.a
-	cp $(PKG_DIR)/src/lib-ccn-lite-utils.a ${BINDIR}/ccn-lite-utils.a
+all: download
+	"$(MAKE)" -BC $(PKG_BUILDDIR)/src lib-ccn-lite.a
+	"$(MAKE)" -BC $(PKG_BUILDDIR)/src lib-ccn-lite-utils.a
+	cp $(PKG_BUILDDIR)/src/lib-ccn-lite.a ${BINDIR}/ccn-lite.a
+	cp $(PKG_BUILDDIR)/src/lib-ccn-lite-utils.a ${BINDIR}/ccn-lite-utils.a
 
-$(PKG_DIR)/Makefile: $(PKG_DIR)/.git/config
-
-$(PKG_DIR)/.git/config:
-	test -d "$(PKG_DIR)" || $(GITCACHE) clone "$(PKG_URL)" "$(PKG_VERSION)" "$(PKG_DIR)"
-
-clean::
-	@echo "Cleaning up CCN-Lite package..."
-	@cd "$(PKG_DIR)" 2> /dev/null > /dev/null && \
-		git clean -x -f && \
-		git reset --hard "$(PKG_VERSION)"
-
-distclean::
-	rm -rf "$(PKG_DIR)"
-
-Makefile.include:
-	@true
+include $(RIOTBASE)/pkg/pkg.mk

pkg/ccn-lite/Makefile.include

-INCLUDES += -I$(RIOTPKG)/ccn-lite -I$(RIOTPKG)/ccn-lite/ccn-lite/src
+INCLUDES += -I$(RIOTPKG)/ccn-lite -I$(BINDIR)/pkg/ccn-lite/src
 INCLUDES += -I$(RIOTBASE)/sys/posix/include