#0  do_winsys_init (ws=0xb982b0) at ../../../../../../../src/gallium/winsys/radeon/drm/radeon_drm_winsys.c:212
  [Error: ../../../../../../../src/gallium/winsys/radeon/drm/radeon_drm_winsys.c was not found in source tree]
#1  radeon_drm_winsys_create (fd=-1) at ../../../../../../../src/gallium/winsys/radeon/drm/radeon_drm_winsys.c:617
  [Error: ../../../../../../../src/gallium/winsys/radeon/drm/radeon_drm_winsys.c was not found in source tree]
#2  0x00007f70f6cc0019 in create_screen (fd=<optimized out>) at ../../../../../../src/gallium/targets/dri-r600/target.c:11
  [Error: ../../../../../../src/gallium/targets/dri-r600/target.c was not found in source tree]
#3  0x00007f70f6d2da82 in dri2_init_screen (sPriv=0xb98190) at ../../../../../../../src/gallium/state_trackers/dri/drm/dri2.c:994
  [Error: ../../../../../../../src/gallium/state_trackers/dri/drm/dri2.c was not found in source tree]
#4  0x00007f70f396b1bd in driCreateNewScreen (scrn=0, extensions=0x7f70f9df8640 <loader_extensions>, driver_configs=0x7ffff8e47438, data=0xb8b640) at ../../../../../../src/mesa/drivers/dri/common/drisw_util.c:70
  [Error: ../../../../../../src/mesa/drivers/dri/common/drisw_util.c was not found in source tree]
#5  0x00007f70f9bd761d in driswCreateScreen (screen=0, priv=<optimized out>) at ../../../../src/glx/drisw_glx.c:686
  [Error: ../../../../src/glx/drisw_glx.c was not found in source tree]
#6  0x00007f70f9bb8658 in AllocAndFetchScreenConfigs (priv=0xb71ce0, dpy=0xb62010) at ../../../../src/glx/glxext.c:778
  [Error: ../../../../src/glx/glxext.c was not found in source tree]
#7  __glXInitialize (dpy=dpy@entry=0xb62010) at ../../../../src/glx/glxext.c:879
  [Error: ../../../../src/glx/glxext.c was not found in source tree]
#8  0x00007f70f9bb4f8b in GetGLXPrivScreenConfig (dpy=0xb62010, scrn=0, ppriv=ppriv@entry=0x7ffff8e474f0, ppsc=ppsc@entry=0x7ffff8e474f8) at ../../../../src/glx/glxcmds.c:174
  [Error: ../../../../src/glx/glxcmds.c was not found in source tree]
#9  0x00007f70f9bb501b in GetGLXPrivScreenConfig (ppsc=0x7ffff8e474f8, ppriv=0x7ffff8e474f0, scrn=<optimized out>, dpy=<optimized out>) at ../../../../src/glx/glxcmds.c:170
  [Error: ../../../../src/glx/glxcmds.c was not found in source tree]
#10 glXGetConfig (dpy=<optimized out>, vis=0xb71840, attribute=attribute@entry=1, value_return=value_return@entry=0x7ffff8e4752c) at ../../../../src/glx/glxcmds.c:880
  [Error: ../../../../src/glx/glxcmds.c was not found in source tree]
#11 0x000000000040209a in check_glx_config (display=<optimized out>, screen=<optimized out>, root=<optimized out>, context=<optimized out>, vinfos=<optimized out>, results=0x7ffff8e475b0) at unity_support_test.c:453
  448: 			      XVisualInfo **vinfos,
  449: 			      TestResults  *results)
  450: {
  451:   // Check root window visual capabilities.
  452:   int value;
  453:   glXGetConfig (display, *vinfos, GLX_USE_GL, &value);
  454:   if (value == 0) {
  455:     results->error = strdup ("OpenGL rendering is not supported by the root visual");
  456:     results->result = 1;
  457:     return 0;
  458:   }
#12 0x000000000040161b in main (argc=<optimized out>, argv=<optimized out>) at unity_support_test.c:755
  750: #ifndef NUX_OPENGLES_20
  751:     // Do the tests, if one of them fails break out of the loop
  752: 
  753:     for (unsigned int i = 0; i < c_num_tests; i++)
  754:       if (!(*tests[i]) (display, screen, root, &context, &vinfos, &results))
  755:         break;
  756: 
  757:     if (results.compiz == 0) {
  758:       // Unity compatibility checks.
  759:       get_opengl_version (results.version, &results.major, &results.minor);
  760:       if ((results.major >= 2 || (results.major == 1 && results.minor >= 4)) &&