Fix module compilation: use custom builder to avoid GHC setup hooks

The haskell.ghcWith package has setup hooks that override buildPhase
even when explicitly set. Solution: use custom builder = stdenv.shell
with args instead of relying on mkDerivation phases.

Changes: - Module derivations: Use custom builder with single -c script
- Combines unpack, build, and install into one script - Explicitly
call ghc with full path to avoid hook interference - Remove unused
objectPaths computation (now using ghc --make with source)

This fixes builds for Omni/Lint.hs, Omni/Task.hs, and all other
Haskell targets with complex dependency graphs.

0 files changed, 0 insertions, 0 deletions