1#version 330
2#extension GL_EXT_shader_integer_mix: require
3
4
5#if !defined GL_EXT_shader_integer_mix
6#  error GL_EXT_shader_integer_mix is not defined
7#elif GL_EXT_shader_integer_mix != 1
8#  error GL_EXT_shader_integer_mix is not equal to 1
9#endif
10
11void main(void) {
12    gl_Position = vec4(0);
13}
14