modular build scripts

[Simon Thum]

Hi,

I've built X from current git and have an addition for the build script 
(util/modular/build.sh). It only adds one line to properly build xcb, 
see below. ModularDevelopersGuide lists the package, although I'm not 
sure if I really need it, it was a dependency to libxcb.


build_lib() {
      build lib libXau
      build lib libXdmcp
      if test x"$USE_XCB" != xNO ; then
+       build xcb pthread-stubs
         build xcb libxcb
      fi
      build lib libX11