bug#38296: Allow Option key to be modifier for non-char key and mouse events

[Richard Stallman]

[[[ To any NSA and FBI agents reading my email: please consider    ]]]
[[[ whether defending the US Constitution against all enemies,     ]]]
[[[ foreign or domestic, requires you to follow Snowden's example. ]]]

It sounds like this could be useful on all platforms -- so let's do it
that way.  Can people please work on extending it to all platforms,
rather than to NS alone?

I think it would be correct to change the variable names so that they don't
say "mac-".


-- 
Dr Richard Stallman
Founder, Free Software Foundation (https://gnu.org, https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)