Hi, prboom is orphaned since 342 and I thought I'd be a shame if it were dropped for sarge. I built an updated packaged with the current upstream stable version 2.3.0. This fixes 3 of the 5 outstanding bugs. The remaining ones are a pretty obscure bugreport, which is either a userside configuration error or SDL bug (#173244) and a bug which I'd mark "wontfix" (#143967, games shouldn't be suid root and svgalib has to die anyway).
You can grab the files from http://www.informatik.uni-bremen.de/~jmm/debian/ They're lintian-clean, could anyone of the QA team have a look and upload these if they are appropriate. I'd maintain prboom if it's possible to do that without being a DD. Cheers, Moritz