packages: Cabal/ cabal-testsuite/
tests: True

write-ghc-environment-files: never

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

package Cabal
  ghc-options: -Werror -fno-ignore-asserts
package cabal-testsuite
  ghc-options: -Werror -fno-ignore-asserts