- Function((Const(CString)), "glXQueryExtensionsString", [(Display, "dpy"), (Int, "screen")]),
- Function((Const(CString)), "glXQueryServerString", [(Display, "dpy"), (Int, "screen"), (GLXname, "name")]),
- Function((Const(CString)), "glXGetClientString", [(Display, "dpy"), (GLXname, "name")]),
+ Function((ConstCString), "glXQueryExtensionsString", [(Display, "dpy"), (Int, "screen")], sideeffects=False),
+ Function((ConstCString), "glXQueryServerString", [(Display, "dpy"), (Int, "screen"), (GLXname, "name")], sideeffects=False),
+ Function((ConstCString), "glXGetClientString", [(Display, "dpy"), (GLXname, "name")], sideeffects=False),