On 8/25/22 14:21, Richard Sandiford wrote: > Do you know what's going on with these ifndef guards? How were they > there before?
There were there since commit 5213506e247206177045f832a0911db0118a8641 Author: Ralf Wildenhues <ralf.wildenh...@gmx.de> Date: Sat Aug 22 13:22:20 2009 +0000 Regenerate tree using Autoconf 2.64 and Automake 1.11. So it's very likely dependent on Autoconf version. Cheers, Martin