On Wed, 2018-12-12 at 15:12 +0000, Alastair McKinstry wrote: > I've been looking at using the "Built-Using" tag for dh-fortran-mod. Why not a Fortran-Mod: gfortran-7, gfortran-8, flang-42 field or so? As another example Python has `Python-Version: 3.6, 3.7` (for packages where this matters; don't ask me about details, I don't know much). Ansgar