TPT-GL blank window backtrace

(gdb) bt
#0  __strlen_sse2 () at ../sysdeps/i386/i686/multiarch/strlen.S:116
#1  0xb533f120 in ralloc_vasprintf_append (str=0xbffe8a9c, fmt=0xb5489c23 "%s%d.%02d%s", args=0xbffe8a48 "\250<A\265\376\r") at ralloc.c:432
#2  0xb533f1df in ralloc_asprintf_append (str=0xbffe8a9c, fmt=0xb5489c23 "%s%d.%02d%s") at ralloc.c:413
#3  0xb535692f in _mesa_glsl_parse_state::_mesa_glsl_parse_state (this=0xd0d76c8, ctx=0xbffe8ae0, target=35633, mem_ctx=0xd0d7638)
    at glsl_parser_extras.cpp:110
#4  0xb53463ec in read_builtins (target=35633,
    protos=0xb5437940 "(\n(function radians\n  (signature float\n    (parameters\n      (declare (in) float degrees))\n    ())\n  (signature vec2\n    (parameters\n      (declare (in) vec2 degrees))\n    ())\n  (signature vec3\n    (p"..., functions=0xb54edd40, count=74)
    at builtin_function.cpp:42
#5  0xb53465c4 in _mesa_read_profile (state=0xd0d2a10, instructions=<value optimized out>, profile_index=5,
    prototypes=0xb5437940 "(\n(function radians\n  (signature float\n    (parameters\n      (declare (in) float degrees))\n    ())\n  (signature vec2\n    (parameters\n      (declare (in) vec2 degrees))\n    ())\n  (signature vec3\n    (p"..., functions=0xb54edd40, count=74)
    at builtin_function.cpp:13535
#6  0xb53468dc in _mesa_glsl_initialize_functions (instructions=0xcdcbf90, state=0xd0d2a10) at builtin_function.cpp:13594
#7  0xb5340422 in _mesa_ast_to_hir (instructions=0xcdcbf90, state=0xd0d2a10) at ast_to_hir.cpp:63
#8  0xb533db4d in _mesa_glsl_compile_shader (ctx=0xcd9b048, shader=0xd0d27d8) at program/ir_to_mesa.cpp:2973
#9  0xb527ccda in compile_shader (ctx=0xcd9b048, shaderObj=<value optimized out>) at main/shaderapi.c:854
#10 0x0809b7b7 in loadShaders () at src/graphics.c:3991
#11 0x0809b53a in sdl_open () at src/graphics.c:3917
#12 0x08083f7a in main (argc=1, argv=0xbfffeeb4) at src/main.c:1763