On Thu, Mar 12, 2020 at 05:05:26PM +0100, Ludovic Court�s wrote: > "pelzflorian (Florian Pelz)" skribis: > > Why would not using a regexp be better? > > It reduces reliance on libc, reduces complexity, and performs better as > noted in the commit log of 35eb77b09d957019b2437e7681bd88013d67d3cd. Thank you for your wisdom. I hope the attached patch is OK. `LC_ALL=en_US.utf8 make check` is mostly fine (except tests/pack.scm, which also failed before). Manual testing of `./pre-inst-env guix environment` works. `LC_ALL=tr_TR.utf8 make check` is still very unhappy though. There are many failures. I will continue to investigate later today. Regards, Florian