Segement Fault in c_pcb_View:main() 326:glGenVertexArrays（）

[Davidlihuang]

Env:
Ubuntu18.04, vmware
OpenGL version string: 3.3 (Compatibility Profile) Mesa 20.0.8

Error:
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x0000000000000000 in ?? ()

solve:
start GLEW extension handler after glfwMakeContextCurrent(window) called;
such as:

        auto window = glfwCreateWindow(width, height, "PCB Viewer", NULL, NULL);
	if (!window)
	{
		glfwTerminate();
		exit(EXIT_FAILURE);
	}
	glfwMakeContextCurrent(window);

	    // start GLEW extension handler huangli  add successful
  	√ glewExperimental = GL_TRUE;
  	√ glewInit();

         glfwSetKeyCallback(window, key_callback); 
         ```
    

[vygr]

I'll try get time to update things. Thanks.

[Davidlihuang]

You're welcome. Your works help me a lot. Thanks too.