gdb --args bzflag -dir /home/common/share/bzflag/ -window
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This GDB was configured as "x86_64-pc-linux-gnu"...
Using host libthread_db library "/lib/libthread_db.so.1".
(gdb) run
Starting program: /home/common/bin/bzflag -dir /home/common/share/bzflag/ -window
[Thread debugging using libthread_db enabled]
[New Thread 47724246596448 (LWP 28517)]
[New Thread 1082677568 (LWP 28520)]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 47724246596448 (LWP 28517)]
SceneRenderer::getGroundUV (this=0x0, p=0x7fff034934b0, uv=0x7fff034934e0) at SceneRenderer.cxx:518
518         if (useQualityValue >= _HIGH_QUALITY)
(gdb) bt
#0  SceneRenderer::getGroundUV (this=0x0, p=0x7fff034934b0, uv=0x7fff034934e0) at SceneRenderer.cxx:518
Cannot access memory at address 0x7fff034933a8
(gdb) q
The program is running.  Exit anyway? (y or n) y