[GHC] #9930: By default, a source code without extension would get overwritten by executable on *nix

[GHC]

#9930: By default, a source code without extension would get overwritten by
executable on *nix
-------------------------------------+-------------------------------------
        Reporter:  Rufflewind        |                   Owner:  Rufflewind
            Type:  bug               |                  Status:  new
        Priority:  normal            |               Milestone:
       Component:  Compiler          |                 Version:  7.8.4
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  Other             |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
-------------------------------------+-------------------------------------

Comment (by Austin Seipp <austin@…>):

 In [changeset:"78833ca6305f0875add94351592e141c032cd088/ghc"]:
 {{{
 #!CommitTicketReference repository="ghc"
 revision="78833ca6305f0875add94351592e141c032cd088"
 Don't overwrite input file by default

 Summary:
 If the default filename of the output executable coincides with that of
 main
 source file, throw an error instead of silently clobbering the input file.

 Reviewers: austin

 Reviewed By: austin

 Subscribers: thomie

 Differential Revision: https://phabricator.haskell.org/D642

 GHC Trac Issues: #9930
 }}}

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9930#comment:5>
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