MAP_ANON support on HPUX

Hi All,

I've just discovered that HP-UX's mmap implementation doesn't define 
MAP_ANON, it only defines MAP_ANONYMOUS.  linux defined both, as does 
solaris (and solaris's manpage actually states that MAP_ANON is 
deprecated), but MacOS X seems to only define MAP_ANON

MAP_ANON is only used in two source files:  libs/wine/mmap.c and 
loader/preloader.c.  My proposed patch involves slightly different changes 
in both places : in mmap.c, I just add a new #elif to handle the case, and 
in preloader.c I add a #ifdef block at the top to define MAP_ANON to be 
MAP_ANONYMOUS if MAP_ANON is undefined, but MAP_ANONYMOUS is defined.

The other possible solution would be to put the #ifdef block from 
preloader.c into a common header...  It's not obvious to me where to put 
it, though, which is why I'm proposing this patch.

Should I rework it to use a common header?  If so - any suggestions as to 
which header would be appropriate?

Thanks,

Warren