cabal.project.validate.libonly

packages: Cabal-syntax/
packages: Cabal/
packages: cabal-testsuite/
packages: Cabal-QuickCheck/
packages: Cabal-tree-diff
packages: Cabal-described
packages: Cabal-tests

tests: True

write-ghc-environment-files: never

-- avoiding extra dependencies
constraints: rere -rere-cfg
constraints: these -assoc

program-options
  ghc-options: -fno-ignore-asserts

package Cabal-syntax
  ghc-options: -Werror
package Cabal
  ghc-options: -Werror
package cabal-testsuite
  ghc-options: -Werror

-- https://github.com/haskell-hvr/cryptohash-sha256/issues/12
allow-newer: cryptohash-sha256:base