+# We want all warnings on
+GhcLibHcOpts += -Wall
+
+# Cabal has problems with deprecated flag warnings, as it needs to pass
+# deprecated flags in pragmas in order to support older GHCs. Thus for
+# now at least we just disable them completely.
+GhcLibHcOpts += -fno-warn-deprecated-flags
+
+ifeq "$(filter-out Win32-% dph%,$(package))" ""
+# XXX We are one of the above list, i.e. we are a package that is not
+# yet warning-clean. Thus turn warnings off for now so that validate
+# goes through.
+GhcLibHcOpts += -w
+endif
+