Please see https://forums.freebsd.org/threads/x-video-driver-mode.67169/ This is seeming to be a rather deep problem between xorg & clang on i386, per the following: http://lists.llvm.org/pipermail/llvm-bugs/2013-January/026989.html It does not appear to be fixable in userland. Perhaps a different xorg pkg can be compiled/provided without the optimization levels?
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