Program received signal SIGABRT, Aborted.
0x00007ffff08a85f8 in raise () from /usr/lib/libc.so.6
(gdb) bt
#0  0x00007ffff08a85f8 in raise () from /usr/lib/libc.so.6
#1  0x00007ffff08a9a7a in abort () from /usr/lib/libc.so.6
#2  0x00007ffff08a1417 in __assert_fail_base () from /usr/lib/libc.so.6
#3  0x00007ffff08a14c2 in __assert_fail () from /usr/lib/libc.so.6
#4  0x00007fffe2f9ac8f in ?? () from /usr/lib/xorg/modules/dri/radeonsi_dri.so
#5  0x00007fffe2fa16ca in ?? () from /usr/lib/xorg/modules/dri/radeonsi_dri.so
#6  0x00007fffe2fa1b1e in ?? () from /usr/lib/xorg/modules/dri/radeonsi_dri.so
#7  0x00007fffe307f11a in radeon_drm_winsys_create ()
   from /usr/lib/xorg/modules/dri/radeonsi_dri.so
#8  0x00007fffe28a0051 in ?? () from /usr/lib/xorg/modules/dri/radeonsi_dri.so
#9  0x00007fffe2cafe10 in ?? () from /usr/lib/xorg/modules/dri/radeonsi_dri.so
#10 0x00007fffe2cabc7d in ?? () from /usr/lib/xorg/modules/dri/radeonsi_dri.so
#11 0x00007fffe5c4e837 in ?? () from /usr/lib/libGL.so.1
#12 0x00007fffe5c1bf20 in ?? () from /usr/lib/libGL.so.1
#13 0x00007fffe5c19051 in glXQueryExtensionsString () from /usr/lib/libGL.so.1
#14 0x00007ffff763bf86 in X11_GL_InitExtensions (_this=0xcb7010)
    at /home/rcl/build/2015-05-01/SDL-gui-backend/src/video/x11/SDL_x11opengl.c:330
#15 X11_GL_LoadLibrary (_this=0xcb7010, path=<optimized out>)
    at /home/rcl/build/2015-05-01/SDL-gui-backend/src/video/x11/SDL_x11opengl.c:225
#16 0x00007ffff75e5c06 in SDL_GL_LoadLibrary_REAL (path=<optimized out>)
    at /home/rcl/build/2015-05-01/SDL-gui-backend/src/video/SDL_video.c:2602
---Type <return> to continue, or q <return> to quit---
#17 0x00007ffff75e8f14 in SDL_CreateWindow_REAL (
    title=0x7ffff76d0ffe "OpenGL test", x=-32, y=-32, w=32, h=<optimized out>, 
    flags=10)
    at /home/rcl/build/2015-05-01/SDL-gui-backend/src/video/SDL_video.c:1307
#18 0x00007ffff75e8bcf in ShouldUseTextureFramebuffer ()
    at /home/rcl/build/2015-05-01/SDL-gui-backend/src/video/SDL_video.c:206
#19 SDL_VideoInit_REAL (driver_name=<optimized out>)
    at /home/rcl/build/2015-05-01/SDL-gui-backend/src/video/SDL_video.c:525
#20 0x00007ffff75fd697 in SDL_InitSubSystem_REAL (flags=1077809)
    at /home/rcl/build/2015-05-01/SDL-gui-backend/src/SDL.c:173
#21 0x00007ffff741411f in FLinuxPlatformMisc::PlatformInitMultimedia ()
    at D:\BuildFarm\buildmachine_++depot+UE4-UT-Releases\Engine\Source\Runtime\Core\Private\Linux/LinuxPlatformMisc.cpp:174
#22 0x00007ffff7425e31 in FLinuxPlatformMisc::PlatformInit ()
    at D:\BuildFarm\buildmachine_++depot+UE4-UT-Releases\Engine\Source\Runtime\Core\Private\Linux/LinuxPlatformMisc.cpp:157
#23 0x000000000040f6ac in FEngineLoop::PreInit (this=<optimized out>, 
    CmdLine=<optimized out>)
    at D:\BuildFarm\buildmachine_++depot+UE4-UT-Releases\Engine\Source\Runtime\Launch\Private/LaunchEngineLoop.cpp:1139
#24 0x000000000041363d in EnginePreInit (CmdLine=0x0)
    at D:\BuildFarm\buildmachine_++depot+UE4-UT-Releases\Engine\Source\Runtime\Launch\Private/Launch.cpp:31
---Type <return> to continue, or q <return> to quit---
#25 GuardedMain (CmdLine=0x49b <error: Cannot access memory at address 0x49b>) at D:\BuildFarm\buildmachine_++depot+UE4-UT-Releases\Engine\Source\Runtime\Launch\Private/Launch.cpp:110
#26 0x000000000041a4ef in main (argc=<optimized out>, argv=<optimized out>) at D:\BuildFarm\buildmachine_++depot+UE4-UT-Releases\Engine\Source\Runtime\Launch\Private\Linux/LaunchLinux.cpp:260