What's the reasoning behind using ld64 for gccXX?

[Ryan Schmidt]

On Apr 17, 2012, at 02:54, Sean Farley wrote:

> After this change:
> 
> https://trac.macports.org/changeset/92064/
> 
> 'sudo port -y install gcc4X' will now show a huge (and unnecessary) compile chain:
> 
> For llvm-3.0: skipping org.macports.main (dry run)
> For ld64: skipping org.macports.main (dry run)
> For cctools: skipping org.macports.main (dry run)
> For gcc4X: skipping org.macports.main (dry run)

Obviously Jeremy, who committed that change, believes it is necessary. Perhaps he'll share his reasoning here.