> On May 20, 2018, at 9:45 PM, Ryan Schmidt <[email protected]> wrote: > > > On May 20, 2018, at 17:04, Andrew Moore wrote: > >> On May 20, 2018, at 8:23 AM, Ryan Schmidt wrote: >> >>> Why is macports_version a proc and not an option? >> >> To make it read-only? It seems procs and trace are Tcl’s way of defining >> constants. > > Variables can be easily made read-only. We already have an xcode_version > variable.
Are you referring to `macports::xcodeversion'? If so, this seems to be a trace'd variable tied to a read command (macports.tcl:1185).
