Since commit 7379049d3, Guile is no longer bootstrapping. (Thanks to dsmith and rlb in the chat.) It turns out that the bad commit is solely 7379049d3 and the rest seem OK, so I've prepared a patch to fix this. (I can commit it to main, but I thought commit history will look nicer if Andy fixes this.) BTW, is compile slower or faster now? Best regards, Mikael