fixup! component/xorg: add xdpyinfo tool

Add missing libxcb to rpath

component/xorg/buildout.cfg

@@ -597,7 +597,7 @@ environment =
   PATH=${pkgconfig:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${xorg-util-macros:location}/share/pkgconfig:${xproto:location}/lib/pkgconfig:${libX11:location}/lib/pkgconfig:${xextproto:location}/lib/pkgconfig:${libX11:location}/lib/pkgconfig:${libXext:location}/lib/pkgconfig:${libXtst:location}/lib/pkgconfig:${recordproto:location}/lib/pkgconfig:${kbproto:location}/lib/pkgconfig:${libXi:location}/lib/pkgconfig:${libXi:pkg_config_depends}
   CPPFLAGS=-I${libXt:location}/include
-  LDFLAGS=-L${libX11:location}/lib -Wl,-rpath=${libX11:location}/lib -Wl,-rpath=${libXi:location}/lib -Wl,-rpath=${libXtst:location}/lib -Wl,-rpath=${libXext:location}/lib -Wl,-rpath=${libXau:location}/lib -Wl,-rpath=${libXdmcp:location}/lib
+  LDFLAGS=-L${libX11:location}/lib -Wl,-rpath=${libX11:location}/lib -Wl,-rpath=${libXi:location}/lib -Wl,-rpath=${libXtst:location}/lib -Wl,-rpath=${libXext:location}/lib -Wl,-rpath=${libXau:location}/lib -Wl,-rpath=${libXdmcp:location}/lib -Wl,-rpath=${libxcb:location}/lib
 
 [xserver]
 # Adds Xvfb functionnality