also add libxcd (required by X11) to pkgconfig path

component/xorg/buildout.cfg

@@ -382,7 +382,7 @@ url = http://www.x.org/releases/X11R7.6/src/lib/libXt-1.0.9.tar.bz2
 md5sum = 8a414f8f2327aaa616ca2dcac1f5d8c3
 environment =
   PATH=${pkgconfig:location}/bin:%(PATH)s
-  PKG_CONFIG_PATH=${xorg-util-macros:location}/share/pkgconfig:${libuuid:location}/lib/pkgconfig:${xtrans:location}/lib/pkgconfig:${libSM:location}/lib/pkgconfig:${kbproto:location}/lib/pkgconfig:${libICE:location}/lib/pkgconfig:${xproto:location}/lib/pkgconfig:${inputproto:location}/lib/pkgconfig:${libXau:location}/lib/pkgconfig:${xorg-libpthread-stubs:location}/lib/pkgconfig:${xextproto:location}/lib/pkgconfig:${libX11:location}/lib/pkgconfig
+  PKG_CONFIG_PATH=${xorg-util-macros:location}/share/pkgconfig:${libuuid:location}/lib/pkgconfig:${xtrans:location}/lib/pkgconfig:${libSM:location}/lib/pkgconfig:${kbproto:location}/lib/pkgconfig:${libICE:location}/lib/pkgconfig:${xproto:location}/lib/pkgconfig:${inputproto:location}/lib/pkgconfig:${libXau:location}/lib/pkgconfig:${xorg-libpthread-stubs:location}/lib/pkgconfig:${xextproto:location}/lib/pkgconfig:${libxcb}/lib/pkgconfig:${libX11:location}/lib/pkgconfig
   XT_CFLAGS=-I${libSM:location}/include -I${kbproto:location}/include -I${libICE:location}/include -I${xproto:location}/include -I${libX11:location}/include
 
 [dri2proto]