[Hackage] #942: cabal install passes --disable-benchmarks to setups built with Cabal lib versions that don't know that flag

[Hackage]

#942: cabal install passes --disable-benchmarks to setups built with Cabal lib
versions that don't know that flag
---------------------------------+------------------------------------------
  Reporter:  kosmikus            |        Owner:                      
      Type:  defect              |       Status:  new                 
  Priority:  normal              |    Milestone:  cabal-install-0.14.2
 Component:  cabal-install tool  |      Version:  1.10.2.0            
  Severity:  normal              |     Keywords:                      
Difficulty:  unknown             |   Ghcversion:                      
  Platform:                      |  
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Comment(by creswick):

 This bit me because I do all my work in sandboxes, so the system-installed
 version of Cabal was 1.12 (which came with ghc-7.2.x, I think 1.14 is
 needed for --disable-benchmarks).

 cabal-installing Cabal-1.14.0 to my user-package db "fixed" the problem,
 because that cabal was then visible when building setup.hs; however,
 that's an unfortunate (and non-obvious) requirement.
 Explicitly specifying the build-dependencies for setup.hs would help with
 this, and other similar build failures enormously.

 I think cabal-install makes the (implicit?) assumption that whatever
 version of Cabal it was built with is available when it is building
 setup.hs.  That's not a safe assumption any longer -- it would help
 enormously if we could actually control the environment that setup.hs is
 built in; as it has /nothing/ to do with the dependencies of the actual
 program that you're trying to compile.

-- 
Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/942#comment:2>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects