[GHC] #8723: sdist should not have to build everything

[GHC]

#8723: sdist should not have to build everything
----------------------------------------------+----------------------------
       Reporter:  nomeata                     |             Owner:
           Type:  task                        |            Status:  new
       Priority:  low                         |         Milestone:
      Component:  Build System                |           Version:  7.6.3
       Keywords:                              |  Operating System:
   Architecture:  Unknown/Multiple            |  Unknown/Multiple
     Difficulty:  Moderate (less than a day)  |   Type of failure:
     Blocked By:                              |  None/Unknown
Related Tickets:                              |         Test Case:
                                              |          Blocking:
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 It would be nice if instead of
 {{{
 $ perl boot
 $ ./configure
 $ make
 $ make sdist
 }}}
 it would suffice to run
 {{{
 $ perl boot
 $ ./configure
 $ make sdist
 }}}
 and if that would not build more than necessary to generate the tarballs.

 It would save time on the GHC-HEAD-Debian-Package-autobuilder that I am
 currently working on.

 I might look into this bug eventually, but if someone else feels like
 doing it: Even better. (Difficulty estimated conservatively; might well be
 less than an hour, besides maybe waiting for test runs to finish :-))


 Remember to update MakingReleases and Building/StandardTargets if this is
 implemented.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8723>
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