contribs: disable freetype as needed

contrib/src/freetype2/rules.mak

@@ -3,7 +3,7 @@
 FREETYPE2_VERSION := 2.4.5
 FREETYPE2_URL := $(SF)/freetype/freetype-$(FREETYPE2_VERSION).tar.gz
 
-PKGS += freetype2
+NEED_FREETYPE2 := $(call need_pkg,"freetype2")
 
 $(TARBALLS)/freetype-$(FREETYPE2_VERSION).tar.gz:
 	$(call download,$(FREETYPE2_URL))
@@ -15,7 +15,13 @@ freetype: freetype-$(FREETYPE2_VERSION).tar.gz .sum-freetype2
 	mv $@-$(FREETYPE2_VERSION) $@
 	touch $@
 
+ifeq ($(NEED_FREETYPE2),)
+.freetype2:
+else
+PKGS += freetype2
+
 .freetype2: freetype
 	cd $< && $(HOSTVARS) ./configure $(HOSTCONF)
 	cd $< && $(MAKE) install
+endif
 	touch $@