Re-enable hoogle in nix shell

[paolino]

Summary

Hoogle was temporarily disabled in nix/haskell.nix during the cardano-node 10.6.1 dependency bump due to a haskell.nix bug with typed-protocols sublibraries.

Problem

The typed-protocols-1.0.0.0 package has internal sublibraries (cborg, stateful, stateful-cborg) where the cborg sublibrary name shadows the external cborg hackage package. When haskell.nix tries to build typed-protocols:stateful-cborg, it generates invalid configure flags:

--dependency=cborg=cborg-0.2.10.0-...
--dependency=cborg=typed-protocols-1.0.0.0-...-cborg

This causes the build to fail with: Error: Dependency on unbuildable package cborg

Workaround Applied

Disabled hoogle in nix/haskell.nix:

• Set withHoogle = false
• Commented out hoogle from tools

Resolution Path

1. Check if newer haskell.nix versions fix the sublibrary name collision issue
2. Alternatively, wait for a typed-protocols release that renames internal sublibraries
3. Once fixed, restore withHoogle = true and re-add hoogle to tools

Related

• haskell.nix sublibrary handling
• typed-protocols internal library structure