add missing pkgconfig path.

component/xorg/buildout.cfg

@@ -342,7 +342,7 @@ md5sum = ce7cda009aa0b10a73637941d44ae789
 configure-options =
   --disable-static
 environment =
-  PKG_CONFIG_PATH=${renderproto:location}/lib/pkgconfig:${xorg-util-macros:location}/share/pkgconfig:${render:location}/lib/pkgconfig:${libX11:location}/lib/pkgconfig
+  PKG_CONFIG_PATH=${kbproto:location}/lib/pkgconfig:${libX11:location}/lib/pkgconfig:${libXau:location}/lib/pkgconfig:${libxcb:location}/lib/pkgconfig:${render:location}/lib/pkgconfig:${renderproto:location}/lib/pkgconfig:${xorg-libpthread-stubs:location}/lib/pkgconfig:${xorg-util-macros:location}/share/pkgconfig:${xproto:location}/lib/pkgconfig
   CPPFLAGS=-I${renderproto:location}/include/ -I${libX11:location}/include/ -I${libxcb:location}/include -I${libXau:location}/include -I${libXdmcp:location}/include -I${xproto:location}/include -I${kbproto:location}/include
   LD_LIBRARY_PATH=${render:location}/lib:${libX11:location}/lib
   LD_RUN_PATH=${render:location}/lib