MAC_OS_X cpp macro?

[Stefan Monnier]

> On a related note: do we have somewhere a list of such CPP defines with
> their intended meanings?  If so, where?  If not, then let's make one.

While taking a look at this idea, I bumped into the following in mac.c:

   [...]
   #ifndef MAC_OS_X
   [...]

AFAICT it's the only occurrence of MAC_OS_X in an ifdef/ifndef, whereas
there are many occurrences of MAC_OSX.  Is that a typo?


        Stefan