gEDA-dev: please test pcb

[Dan McMahill]

Hello,

I've just checked in a pretty good handful of changes to pcb.  They 
should not really be visible from a user point of view.  The biggest 
change is that a pcb installation should now be relocateable.  By this I 
mean


./configure --prefix=/opt/old-pcb
make
make install

mv /opt/old-pcb /opt/new-pcb

/opt/new-pcb/bin/pcb mylayout.pcb

should work.  Previously, you would have gotten complaints about not 
being able to find default_font or the footprint libraries.

If anyone feels like kicking the tires a bit, I'd appreciate any 
feedback as I'm hoping to get a new snapshot out "soon" but would hate 
to have introduced a bad last minute bug here.

If anyone has any plugins configured, it would help to see if they still 
work right as the code searching for plugin directories was touched as 
part of all this.

A couple of other things have also changed.  I've done some housekeeping 
(not thorough, but partial) on the footprint libraries.  I've removed 
some which were either redundant or just not well made or well named or 
otherwise desirable.

Last but not least, the backup files are now saved in the same directory 
as the .pcb file and have the same name but with a "-" appended to the 
end.  It should make it easier to find a backup file for a particular 
layout.

Thanks
-Dan