[patch] Setup.exe choose.cc selection enhancement based on file existence

[Trevor Forbes]

----- Original Message ----- 
From: "Corinna Vinschen" <cygwin-patches@cygwin.com>
> 
> I would like to see the ability of setup to download all sources,
> even the packages which don't need updating. I can't see a reason
> that I'm unable to download the sources 10 minutes after installing
> only because I forgot to click on the src? button in that moment.
> 
> Corinna

Ditto

Trevor