[Gentoo] Packaging science apps still sucks

So, I decided I’d like to make Gentoo a solid distro for X-ray crystallography, my specialization in biochemistry/biophysics. Unfortunately all the apps I’ve started packaging so far have build systems clearly designed and constructed by scientists.

These are the types of apps where you’re expected to source some shell script before the build starts to set up random environment variables, then compile the whole thing in-place and leave it there, source and all. It’s actually incredibly difficult to get it independent of the source, as things have cross-directory dependencies on locations of other things.

This time, it’s CCP4. Why can’t they just use autotools??