Unreal Tournament 2004 with cvs checked out on July 3 dies upon startup with a 
SIGSEGV. I traced the problem to the definition of THREADS in glapi_x86.S: 
undefining THREADS enables ut2004 to start without issue. 
 
Hardware: 
Pentium 4 2.53Ghz (no HT) 
Soyo P4S 645DX Dragon Ultra 
512MB DDR 
 
Software: 
Debian Linux (sid) 
Kernel 2.6.7-mm5 
GCC version 3.4.0 (Debian 3.4.0-4) 
 
Backtrace: 
Program received signal SIGSEGV, Segmentation fault. 
[Switching to Thread -1211938240 (LWP 32177)] 
0xb56b52b5 in glVertex3fv () at glapi_x86.i:440 
440              .balign 
16;                                             .globl glVertex3fv ; .type 
glVertex3fv,@function;                      glVertex3fv:    movl  
_glapi_DispatchTSD, %eax ;                 testl %eax, %eax ;             je 
1f ;                                          jmp  * 4 *  137( %eax) ;      1:        
call _glapi_get_dispatch ;                              jmp  * 4 *  137( %eax) 
Current language:  auto; currently asm 
#0  0xb56b52b5 in glVertex3fv () at glapi_x86.i:440 
#1  0xb7f4e8be in X11_GL_Shutdown () from ./libSDL-1.2.so.0 
#2  0xb7f4e975 in X11_GL_MakeCurrent () from ./libSDL-1.2.so.0 
Signal: SIGSEGV [segmentation fault] 
Aborting.