-GHC_WARNINGS := -Wall
-GHC_WARNINGS += -fwarn-hi-shadowing
-GHC_WARNINGS += -fwarn-missing-signatures
-GHC_WARNINGS += -fwarn-name-shadowing
-GHC_WARNINGS += -fwarn-orphans
-GHC_WARNINGS += -fwarn-type-defaults
-GHC_WARNINGS += -fwarn-tabs
-GHC_WARNINGS += -fwarn-incomplete-record-updates
-GHC_WARNINGS += -fwarn-monomorphism-restriction
-GHC_WARNINGS += -fwarn-unused-do-bind