add missing pkgconfig path.

component/xorg/buildout.cfg

@@ -133,7 +133,7 @@ recipe = hexagonit.recipe.cmmi
 url = http://www.x.org/releases/X11R7.6/src/lib/libXext-1.2.0.tar.bz2
 md5sum = 9bb236ff0193e9fc1c1fb504dd840331
 environment =
-  PKG_CONFIG_PATH=${xorg-util-macros:location}/share/pkgconfig:${xcbproto:location}/lib/pkgconfig:${libXau:location}/lib/pkgconfig:${xproto:location}/lib/pkgconfig:${xorg-libpthread-stubs:location}/lib/pkgconfig:${xextproto:location}/lib/pkgconfig:${libX11:location}/lib/pkgconfig:${libxcb:location}/lib/pkgconfig
+  PKG_CONFIG_PATH=${xorg-util-macros:location}/share/pkgconfig:${xcbproto:location}/lib/pkgconfig:${libXau:location}/lib/pkgconfig:${xproto:location}/lib/pkgconfig:${xorg-libpthread-stubs:location}/lib/pkgconfig:${xextproto:location}/lib/pkgconfig:${libX11:location}/lib/pkgconfig:${libxcb:location}/lib/pkgconfig:${kbproto:location}/lib/pkgconfig
   CPPFLAGS=-I${xcbproto:location}/include -I${libXau:location}/include -I${xproto:location}/include -I${xorg-libpthread-stubs:location}/include -I${xextproto:location}/include -I${libX11:location}/include -I${libxcb:location}/include
   LD_LIBRARY_PATH=${xcbproto:location}/lib:${libXau:location}/lib:${xorg-libpthread-stubs:location}/lib:${xextproto:location}/lib:${libX11:location}/lib:${libxcb:location}/lib
   LD_RUN_PATH=${xcbproto:location}/lib:${libXau:location}/lib:${xorg-libpthread-stubs:location}/lib:${xextproto:location}/lib:${libX11:location}/lib:${libxcb:location}/lib