regress changes

Hi,

Quick report from the front lines.

I've been IM'ing with Magnus and he already fixed most problems with the
regression tests.  The buildfarm should slowly start turning green
again.

There is a remaining problem though, which is that it doesn't work at
all on VPATH builds.  The problem seems to be that we are neglecting to
symlink the files into the builddirs.  I am looking into that.

I failed to notice this previously because my regular cleanup procedure
left the symlinks in place.  I think this is something that we should
hack make distclean to remove.  I'll have a look at that as well.

-- 
Alvaro Herrera       Valdivia, Chile   ICBM: S 39º 49' 18.1", W 73º 13' 56.4"
"No hay hombre que no aspire a la plenitud, es decir,
la suma de experiencias de que un hombre es capaz"