-HEAD regression failure on OpenBSD 3.6-current/x86

One of my boxes(emu) on the buildfarm fails to pass the float8
regressiontest:

http://www.pgbuildfarm.org/cgi-bin/show_log.pl?nm=emu&dt=2004-10-31%2003:35:02

the interesting thing is that spoonbill (slightly older
OpenBSD-current/Sparc64) passes this test(but fails contribcheck later on):

http://www.pgbuildfarm.org/cgi-bin/show_log.pl?nm=spoonbill&dt=2004-10-30%2023:50:04

A wild guess is that the difference might be that OpenBSD/x86 is still
using a 2.95.x compiler in the base system and Sparc64 already has 3.3.x...

Yet it looks like that the float8 issue is not really fatal - (-0 vs 0)
just annoying :-).

Stefan