Leo Famulari <l...@famulari.name> writes: > 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?
The problem is that you should never use 'package/inherit' to create a graft. That leads to an infinite tower of grafts. I'm surprised it works at all, but it's definitely not right. Use (package (inherit ...) ...) instead, and leave out the (replacement #f). Thanks! Mark