unable to upgrade/build texlive-bin

[MAS!]

> clang can in some cases use a lot more RAM than gcc did. Try updating to Xcode 4.6.1 if you haven't already. Also ensure your command line tools are up to date by open Xcode,

I'm updating che command line tools..
but I'm compiling it (even with the outdated command line tools) without the +motif option

may be there are troubles with it?
what change with or without the +motif?!
thank you for all
bye 
MAS!