[packman] Problems with the build server

[Cristian Morales Vega]

Just to remember to whoever can fix it:

- Soft dependencies are not created: https://bugs.links2linux.org/browse/PM-4

- build-compare is broken: https://bugs.links2linux.org/browse/PM-44


And a new one:

- Multimedia/lmms for openSUSE 12.3 x86-64 and Tumbleweed x86-64
doesn't know if it should use libjpeg8-devel or libjpeg62-devel. But
openSUSE:12.3:Update prjconf includes a

Prefer: libjpeg8-devel

which seems to be ignored.