On Thu, 12 Oct 2023 at 14:41, Sébastien Hinderer <Sebastien.Hinderer@xxxxxxxx> wrote: > Aht alone was useful. It made me realise that I was using eval, rather > than m4_eval. I assume this is why it didn't work as expected. > > However, eval *is* documented in section 12.2 Evaluating integer > expressions of the m4 info manual. The 'm4_' prefix is related to the `-P` option I believe, see https://www.gnu.org/software/m4/manual/html_node/Operation-modes.html#Operation-modes Peter
