On Wed, Apr 18, 2018 at 03:14:45PM -0400, Mark H Weaver wrote: > I suggest that we add a phase to the replacement 'perl' to install a > symlink from $out/lib/perl5/5.26.1 pointing to "5.26.2". > > Would you like to try this, Leo, and push it if it solves the problem > for you? Thanks for your advice. The attached patch fixes the issue for me. I would have pushed it but there is one thing I don't understand. Before I set (replacement #f), the build would fail because the new phase was run twice, and symlinking fails because it is not "forced" (as in `ln -sf`). Is this expected behaviour?