Commit d7cedd9d authored by
hadrian: Drop -Werror=unused-but-set-variable from GHC flags
Previously `hadrian` would pass `-optc-Werror=unused-but-set-variable` to all GHC invocations. This was a difference from the make build system and cause the unregisterised build to fail as the C that GHC produces contains many unused functions. Drop it from the GHC flags. Note, however, that the flag is still present in `Settings.Builders.Common.cWarnings` and therefore will still be applied during compilation of C sources.
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