GLUT_API_VERSION
#ifndef GLUT_API_VERSION /* allow this to be overriden */
#if (GLUT_API_VERSION >= 2)
#if (GLUT_API_VERSION >= 3)
#if (GLUT_API_VERSION >= 2)
#if (GLUT_API_VERSION >= 3)
#if (GLUT_API_VERSION >= 3)
#if (GLUT_API_VERSION >= 2)
#if (GLUT_API_VERSION >= 3)
#if (GLUT_API_VERSION >= 2)
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 13)
#if (GLUT_API_VERSION >= 2)
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 13)
#if (GLUT_API_VERSION >= 3)
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 9)
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 9)
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 11)
#if (GLUT_API_VERSION >= 3)
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 9)
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 11)
#if (GLUT_API_VERSION >= 2)
#if (GLUT_API_VERSION >= 3)
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 9)
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 13)
#if (GLUT_API_VERSION >= 2)
#if (GLUT_API_VERSION >= 3)
#if (GLUT_API_VERSION >= 5)
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 9)
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 9)
#if (GLUT_API_VERSION >= 4 || GLUT_XLIB_IMPLEMENTATION >= 13)
apiString << (int32)GLUT_API_VERSION;