M1 fixes - fix up mess1 etc. function call macros.

These need to be massaged so that they work on Apple arm64 cpus.
Backported from vanilla, cf.:

https://github.com/pure-data/pure-data/commit/deff7957
https://github.com/pure-data/pure-data/commit/69b444ad
https://github.com/pure-data/pure-data/commit/000b7611