Type Definition glu_sys::glu::PFNGLCOMPRESSEDTEXTUREIMAGE2DEXTPROC

type PFNGLCOMPRESSEDTEXTUREIMAGE2DEXTPROC = Option<unsafe extern "C" fn(texture: GLuint, target: GLenum, level: GLint, internalformat: GLenum, width: GLsizei, height: GLsizei, border: GLint, imageSize: GLsizei, bits: *const c_void)>;