[Haskell-cafe] Which option causes 'cabal install' to leave temp. build dirs. in place?

[Henning Thielemann]

On Sat, 28 Mar 2020, David Banas wrote:

> Which option to a 'cabal install' command will cause the temporary build 
> directories to be left in place, so that I can inspect, for instance, 
> the 'config.log' file of a failed dependency build?

I don't think cabal deletes its log files automatically. I remember it 
even tells you the path of the log of a failed build. Is it in 
~/.cabal/logs/ ?