==86909== Invalid write of size 4
==86909==    at 0x12344020CCE5: ??? (in /System/Library/Extensions/GeForceGLDriver.bundle/Contents/MacOS/GeForceGLDriver)
==86909==    by 0x12344020D042: ??? (in /System/Library/Extensions/GeForceGLDriver.bundle/Contents/MacOS/GeForceGLDriver)
==86909==    by 0x12344031A393: gldUpdateDispatch (in /System/Library/Extensions/GeForceGLDriver.bundle/Contents/MacOS/GeForceGLDriver)
==86909==    by 0x1234405132BE: gldBlitFramebufferData (in /System/Library/Extensions/GeForceGLDriver.bundle/Contents/MacOS/GeForceGLDriver)
==86909==    by 0x12344033B255: gldBlitFramebufferData (in /System/Library/Extensions/GeForceGLDriver.bundle/Contents/MacOS/GeForceGLDriver)
==86909==    by 0x1104AB945: glTexImage2D_Exec (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLEngine.bundle/GLEngine)
==86909==    by 0x10840746C: ??? (in /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib)
==86909==    by 0x10000A285: loadCubemap (sky.c:53)
==86909==    by 0x100009E26: loadSky (sky.c:128)
==86909==    by 0x100008BE4: initRenderer (render.c:56)
==86909==    by 0x1000024F8: gameNew (game.c:38)
==86909==    by 0x100002353: main (main.c:19)