#3085: warn about language extensions that are not used
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Reporter: PVerswyvelen | Owner:
Type: feature request | Status: new
Priority: normal | Milestone:
Component: Compiler | Version: 6.10.1
Severity: normal | Resolution:
Keywords: warnings extensions language | Difficulty: Unknown
Testcase: | Os: Unknown/Multiple
Architecture: Unknown/Multiple |
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Comment (by MartijnVanSteenbergen):
I can imagine it depends entirely on the specific flag.
GeneralizedNewtypeDeriving seems easy enough. RelaxedPolyRec on the other
hand...
I think warnings for the easier ones is already awesome.
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3085#comment:6>
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