#16120: Hadrian should use cabal build-tools installed Alex and Happy if necessary -------------------------------------+------------------------------------- Reporter: adamse | Owner: (none) Type: feature request | Status: patch Priority: normal | Milestone: Component: Build System | Version: 8.6.3 (Hadrian) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | https://gitlab.haskell.org/ghc/ghc/merge_requests/69 -------------------------------------+------------------------------------- Changes (by sgraf): * cc: mpickering (added) Comment: I just wanted to point out that this makes for different behavior when doing `./configure` and `hadrian/build.cabal.sh -c`. Specifically, when opening a `nix-shell --pure https://github.com/alpmestan/ghc.nix/archive/master.tar.gz`, this pollutes the configured $PATH variable with cabal-specific paths in my user home. Doing just `./configure` doesn't do that. I don't see why we always want to use the happy and alex versions that were used to build Hadrian. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/16120#comment:12 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler