Hi Nicolas and David, > This is rather heavy-handed, but you could compile your own custom > toplevel directly from source to do this. > Probably stupid and brute force suggestion: have you considered recompiling > the toplevel, modifying the constant defining the line width? Thank you for the suggestion. I could do this as a last resort now that I know where to change it, but I’d rather not. Is there a guide somewhere that explains how to create a new opam switch From local (modified) ocaml sources? Alan -- OpenPGP Key ID : 040D0A3B4ED2E5C7 Athmospheric CO₂ (Updated September 22, 2015, Mauna Loa Obs.): 397.77 ppm