[ ghc-Bugs-1162969 ] Over-zealous dup-import warning

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Bugs item #1162969, was opened at 2005-03-14 23:56
Message generated for change (Comment added) made by fergus
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=108032&aid=1162969&group_id=8032

Category: Compiler
Group: None
Status: Open
Resolution: None
Priority: 4
Submitted By: Simon Peyton Jones (simonpj)
Assigned to: Simon Peyton Jones (simonpj)
Summary: Over-zealous dup-import warning

Initial Comment:
Pointed out by John Meacham [john at repetae.net]

In 6.4 the duplicate import warning seems to be 
triggered overzealously, even
when one import is qualified and the other isn't.


import qualified Data.Map 
import Data.Map(Map)

foo :: Map Int Int
foo = Data.Map.empty
             
main = do
    print foo
                    
produces:
 Foo.hs:1:0:
    Warning: `Map' is imported more than once:
               imported from Data.Map at Foo.hs:3:16-18
               imported from Data.Map at Foo.hs:2:0-24

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Comment By: Fergus Henderson (fergus)
Date: 2005-04-13 09:06

Message:
Logged In: YES 
user_id=135331

Yes, this one is a pain -- it would be great if someone
would fix this.
The only work-around I have at the moment is to use "-Wall
-fno-warn-unused-imports" instead of "-Wall".
   - Fergus Henderson.

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=108032&aid=1162969&group_id=8032