Original report (archived issue) by Philip Starkey (Bitbucket: pstarkey, GitHub: philipstarkey).

Pull request #7 introduced the saving of hg (mercurial) repository version information into the hdf5 file. However, tests on my PC indicate this adds an additions 3 seconds onto compilation time (original compilation time was ~0.65 seconds, now ~3.5 seconds).

We should investigate this and correct it.