m68k-openbsd -fpic fix

[Joe Buck]

[ 68k bug with forcing constants to memory ]

Marc Espie writes:
> Thanks for a great job !    Pity I had to whine to get my fix (there's
> no justice ;-) ), but I'm very, very happy with the result.

Especially for the lesser-used platforms, it seems that bugs often won't
get fixed unless the priority is somehow raised.  Whining by a respected
person is one of the more efficient ways to accomplish this. :-)