#ifdef GLEW_MX
GLboolean glewContextIsSupported (const GLEWContext* ctx, const char* name)
#else
GLboolean glewIsSupported (const char* name)
#endif
{
  GLubyte* pos = (GLubyte*)name;
  GLuint len = _glewStrLen(pos);
  GLboolean ret = GL_TRUE;
  while (ret && len > 0)
  {
    if (_glewStrSame1(&pos, &len, (const GLubyte*)"GL_", 3))
    {