Building MacPorts - why not activate Tcl 64bit support?

[René J.V. Bertin]

Hi,

Looking through MacPorts configure.ac and the Tcl configure script I noticed that the latter requires explicit activation of 64bit support and that the former doesn't do that.

Is that simply to keep support for building on 32bit systems simple or is there another reason? I am not familiar enough with Tcl to know if there's any advantage to activating 64bit support ... but that's what MS once thought about supporting more than 640Kb or RAM ;)

R.