Cabal flag for utils

[juhp]

Just a small packaging suggestion: how about adding a build flag to make the building of Benchmark optional (or allowing it not to be built)?
Maybe implicitsnap and docgen too perhaps if it makes sense? I am not sure how they are used in general.

Thanks for this interesting project.

[sorki]

Both implicitsnap and docgen are behind respective flags since #272.

You can disable benchmark too with cabal configure --disable-benchmarks which creates cabal.project.local. Not sure if this is needed for development though - like you can just not run benchmark. Benchmark was also switched from executable to benchmark type in that PR so it's not part of default set of executables anymore.

[juhp]

Okay, cool - sorry I should have checked more carefully. I think I installed from Hackage.