[AD] Annoying smart preprocessing again

[Angelo Mottola <a.mottola@xxxxxxxxxx>]

I did a recompile of the whole OSX port so far, and I have just one warning
left:

gcc -DALLEGRO_SRC -Wall -Wno-unused -Wno-long-double  -O2 -funroll-loops
-ffast-math -fomit-frame-pointer -pipe -DALLEGRO_USE_C -I. -I./include -o
obj/macosx/alleg/keybd.o -c src/macosx/keybd.m
src/macosx/keybd.m:41: illegal expression, found `unknown'
src/macosx/keybd.m:65: illegal external declaration, missing `;' after `0'
cpp-precomp: warning: errors during smart preprocessing, retrying in basic
mode

I really don't know how to solve it though. The KEY_* macros are simple
plain definitions, why is it complaining?

-- 
Angelo Mottola
a.mottola@xxxxxxxxxx