Pullup ticket #4345 - requested by taca
graphics/freetype2: build fix for depending packages

Revisions pulled up:
- graphics/freetype2/buildlink3.mk                              1.37

---
   Module Name:	pkgsrc
   Committed By:	schmonz
   Date:		Sun Jan 12 21:19:33 UTC 2014

   Modified Files:
   	pkgsrc/graphics/freetype2: buildlink3.mk

   Log Message:
   Let naive configure scripts find freetype-config (needed for latest php55-gd).
Pullup ticket #4345.