Kill some #ifdefs - Windows/BeOS/Mcore/arm-pecoff testing needed

[Zack Weinberg]

Mark Mitchell <mark@codesourcery.com> writes:

>>This patch converts MULTIPLE_SYMBOL_SPACES from a macro tested with
>>#ifdef to a macro tested with if().
>>
> I'm going to call this obvious.  If you get no takers on your testing 
> request within a day, go ahead and check it in.

Appreciated.  However, as the major reason I did this is that
constructs of the form

#ifdef THING 
  if (CONDITION)
#endif
    ACTION;

make my brain hurt and I don't ever feel safe messing with them, would
you mind double-checking that the modified code reads to have the same
semantics as the original?

zw