cygwin installed packages list without dependencies

[DynV]

Hello people of cygwin,

Now for my main concern. I'd like to migrate from cygwin to cigwin64 but 
I have many packages on cygwin, the 32-bit version, that I'd need to 
install as well on the destination version (64-bit) before the move is 
made. I'm not sure which packages are still useful although most should 
be as I read thoroughly for a long time the first cygwin install. I'd 
like to review the packages then install the same (what passed the 
cleanup) on cygwin64.

I did a search and the best I found was to use /cygcheck -c/ so I did on 
the origin, cygwin, which give me a bit over 450 packages (the 
destination of the migration being cygwin64). This is quite a list and I 
might as well start from scratch as I fist did (for the 32-bit version). 
I would very much like to know which of the 450 something were installed 
as dependencies so I can skip them, knowing they would be installed by 
installing the dependent.

IIRC on aptitude, on "regular" *nix, there was a flag is a package was a 
dependency. So if there would be a way to reproduce such a structure and 
list everything that wouldn't have such flag, it would be pretty much 
what I'm looking for.

Thank you kindly for your help,
DynV



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