i upgrade from 8-stable amd64 to 9-stable amd64 (with my kernel config). install gnome2 and some other soft from package (pkg_add -r). All work. After rebuild world under clang I get crashed libreoffice on start without any message. I use portsconf and libreoffice and all build dependencies use gcc. but libreoffice don't build 
Last message from build libreoffice http://pastebin.com/C869CzR2
Kernel config http://pastebin.com/H4hJXJa8

Last message from build libreoffice http://pastebin.com/C869CzR2
Kernel config http://pastebin.com/H4hJXJa8