On 16.01.2021 20:55, Hamish McIntyre-Bhatty via Cygwin wrote:
> In reply to Marco Atzeri:
> 
> """
> Some time ago I put a script here:
> https://stackoverflow.com/questions/46829532/cygwin-save-package-selections-for-later-reinstall
> 
> """
> 
> This has been very useful for me. Is this in a git/other repository somewhere? If not, I think it might aid discovery for it to go with some other useful scripts in this repository: https://github.com/michaelgchu/Cygwin_Specific_Repo.
> 
> What do you think of this idea Marco?
> 
> Hamish McIntyre-Bhatty
> 

feel free to use it. I never store anywhere other than stackoverflow.
Attached the current version, I don't rememeber if I changed
it in the meantime.

Attached another that you can find useful
it uses cygcheck and binutils to provide the list of first level
packages containing the needed DLL's

$ cyg-dependency.sh /usr/bin/octave-5.2.0.exe
/usr/bin/cygwin1.dll  =>  cygwin-3.1.7-1
/usr/bin/cygX11-6.dll  =>  libX11_6-1.7.0-1
/usr/bin/cyggcc_s-seh-1.dll  =>  libgcc1-10.2.0-1
/usr/bin/cygstdc++-6.dll  =>  libstdc++6-10.2.0-1
KERNEL32.dll  =>   Windows System

I found useful to avoid some screwup

Regards
Marco