Segmentation fault at glGenVertexArrays( 1, &vao );

Question

My gdb backtrace gives:

(gdb) backtrace
#0  0x00000000 in ?? ()
#1  0x0804a211 in init () at example1.cpp:147
#2  0x0804a6bc in main (argc=1, argv=0xbffff3d4         


        

Answer 1

glewExperimental = GL_TRUE; 
glewInit();

Should do the magic

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Experimental Drivers

GLEW obtains information on the supported extensions from the graphics driver. Experimental or pre-release drivers, however, might not report every available extension through the standard mechanism, in which case GLEW will report it unsupported. To circumvent this situation, the glewExperimental global switch can be turned on by setting it to GL_TRUE before calling glewInit(), which ensures that all extensions with valid entry points will be exposed.