Pkgsrc and xorg, native vs. packaged

NetBSD uses pkgsrc but ships a version of xorg with NetBSD.  This is effectively producing the same code twice.  There’s a long discussion on tech-pkg@ (first article linked; keep reading) about moving to the pkgsrc version of xorg for NetBSD, which seems like a good idea for focusing effort, as far as I can tell.  The thread goes on quite a way.