This is because MosML needs the bin/camlrunm binary to have a
carefully calibrated RPATH pointing at its installation directory, and
patchelf will remove this.
Without this fix, MosML cannot dynamically load its own libraries
(most notably the "Unix" module).
There ver very many conflicts, basically all due to
name -> pname+version. Fortunately, almost everything was auto-resolved
by kdiff3, and for now I just fixed up a couple evaluation problems,
as verified by the tarball job. There might be some fallback to these
conflicts, but I believe it should be minimal.
Hydra nixpkgs: ?compare=1538299