Function gl::GetDebugMessageLog

pub unsafe fn GetDebugMessageLog(count: GLuint, bufSize: GLsizei, sources: *mut GLenum, types: *mut GLenum, ids: *mut GLuint, severities: *mut GLenum, lengths: *mut GLsizei, messageLog: *mut GLchar) -> GLuint

Fallbacks: GetDebugMessageLogARB, GetDebugMessageLogKHR