(In reply to Ilia Mirkin from comment #2)
> FWIW I can't reproduce the segfault by running through glsl_compiler. I do,
> however, get a
> 
> 0:35(1): error: #extension directive is not allowed in the middle of a shader
> 
> But that should be work-around-able with a driconf setting (or by running
> the game with allow_glsl_extension_directive_midshader=1 in the
> environment). When I move the #extension line up, no complaints (other than
> the unknown GL_ATI_draw_buffers thing), nothing in valgrind either.
> 
> Perhaps you can capture an apitrace of the issue?

Right, there's already a workaround for this game in drirc.

I can't really make out much from the backtrace, but at least for some of the
crashes the segfault seems to come from the game, probably because of the
failing shader?

You didn't get the syntax error?
0:209(3): error: syntax error, unexpected '='

I will try again with git master and try to capture a trace too,