[Hackage] #894: Add benchmark support

[Hackage]

#894: Add benchmark support
----------------------------+-----------------------------------------------
  Reporter:  tibbe          |        Owner:     
      Type:  enhancement    |       Status:  new
  Priority:  normal         |    Milestone:     
 Component:  Cabal library  |      Version:     
  Severity:  normal         |     Keywords:     
Difficulty:  unknown        |   Ghcversion:     
  Platform:                 |  
----------------------------+-----------------------------------------------
 Today, a user needs to rely on external tools, such as Make, to build
 benchmarks associated with a package. This has a couple of issues:

  * It's hard to have both Make (which builds the benchmark) and Cabal
 (which builds the library) pick the same versions of package dependencies.
 This leads to compilation errors when the user installs or removes some
 packages from his/her system.

  * It's hard to accurately track what needs to be rebuilt when, forcing
 the user to rebuild more than necessary, which wastes time.

 Proposal: Add a new `.cabal` file section for benchmarks, modeled after
 the "test-suite" section.

 Usage:

 {{{
 cabal configure --enable-benchmarks
 cabal build
 cabal bench
 # results are written to stdout
 }}}

-- 
Ticket URL: <http://hackage.haskell.org/trac/hackage/ticket/894>
Hackage <http://haskell.org/cabal/>
Hackage: Cabal and related projects