merge for universal builds (was: Re: [31954] trunk/base/src/port1.0/portutil.tcl)

On Dec 12, 2007, at 11:50, mww@macports.org wrote:

Revision: 31954 http://trac.macosforge.org/projects/macports/changeset/31954 Author: mww@macports.org Date: 2007-12-12 09:50:49 -0800 (Wed, 12 Dec 2007)

Log Message: ----------- add 'merge' function for mergin multiple (single arch) destroots into one (universal) destroot

How does this compare with http://trac.macports.org/projects/macports/browser/users/pipping/ merge.rb and how does it relate to backup() and lipo() in http://trac.macports.org/projects/macports/browser/trunk/base/src/ port1.0/portutil.tcl ?