[GHC] #9642: LANGUAGE pragma synonyms

[GHC]

#9642: LANGUAGE pragma synonyms
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              Reporter:  dreixel     |            Owner:
                  Type:  feature     |           Status:  new
  request                            |        Milestone:
              Priority:  normal      |          Version:  7.9
             Component:  Compiler    |         Keywords:
            Resolution:              |     Architecture:  Unknown/Multiple
      Operating System:              |       Difficulty:  Unknown
  Unknown/Multiple                   |       Blocked By:
       Type of failure:              |  Related Tickets:
  None/Unknown                       |
             Test Case:              |
              Blocking:              |
Differential Revisions:              |
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Comment (by jstolarek):

 Are you aware of the possibility of specifying extensions in package's
 `.cabal` file? Here's an example:

 {{{
 library
   hs-source-dirs:   src
   exposed-modules:  ...
   build-depends:    ...
   extensions:       BangPatterns
                     EmptyDataDecls
                     FlexibleContexts
                     FlexibleInstances
                     ...
 }}}

 This addresses the issue of code duplication. It does not address auto-
 enabling of LANGUAGE extensions for modules that import a package.
 Personally I don't like the idea of having extensions automatically (and
 implicitly) enabled without my knowledge just because I imported a module.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9642#comment:1>
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