#0  0xb7f7ebad in _dl_close () from /lib/ld-linux.so.2
#1  0xb7c54cb4 in dlclose_doit () from /lib/tls/i686/cmov/libdl.so.2
#2  0xb7f795d6 in _dl_catch_error () from /lib/ld-linux.so.2
#3  0xb7c552bc in _dlerror_run () from /lib/tls/i686/cmov/libdl.so.2
#4  0xb7c54cea in dlclose () from /lib/tls/i686/cmov/libdl.so.2
#5  0xb7f267bd in ?? () from /usr/lib/libGL.so.1
#6  0x00000000 in ?? ()