[kcbanner@kc mk]$ gdb ./ttogl GNU gdb 6.6 Copyright (C) 2006 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i686-pc-linux-gnu"... Using host libthread_db library "/lib/libthread_db.so.1". (gdb) run Starting program: /home/kcbanner/programming/tto/tto_nvsg/mk/ttogl Failed to read a valid object file image from memory. [Thread debugging using libthread_db enabled] [New Thread -1235237136 (LWP 5221)] Starting Creating SDL OpenGL window done (width=800 height=600) Initializing SDLRenderArea Program received signal SIGSEGV, Segmentation fault. [Switching to Thread -1235237136 (LWP 5221)] 0xb6acb0f7 in ?? () from /usr/lib/libGLcore.so.1 (gdb) bt #0 0xb6acb0f7 in ?? () from /usr/lib/libGLcore.so.1 #1 0xb51e9000 in ?? () #2 0x00000003 in ?? () #3 0x00000000 in ?? () (gdb)