[GHC] #1770: GHCi should know about itself, so that .ghci can be portable

[GHC]

#1770: GHCi should know about itself, so that .ghci can be portable
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 Reporter:  guest            |          Owner:             
     Type:  feature request  |         Status:  closed     
 Priority:  normal           |      Milestone:  6.10 branch
Component:  GHCi             |        Version:  6.6.1      
 Severity:  normal           |     Resolution:  fixed      
 Keywords:                   |     Difficulty:  Unknown    
 Testcase:                   |   Architecture:  Unknown    
       Os:  Unknown          |  
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Changes (by claus):

  * status:  new => closed
  * resolution:  => fixed

Comment:

 New developments:-) Simon's new `ghc-paths` package
 {{{
 Prelude> :browse GHC.Paths
 docdir :: FilePath
 ghc :: FilePath
 ghc_pkg :: FilePath
 libdir :: FilePath
 }}}
 makes most of this possible, eg
 {{{
 Prelude> :cmd return $ ":!"++GHC.Paths.ghc++" +RTS --info"
  [("GHC RTS", "Yes")
  ,("GHC version", "6.9.20080514")
  ,("RTS way", "rts_thr")
  ,("Host platform", "i386-unknown-mingw32")
  ,("Build platform", "i386-unknown-mingw32")
  ,("Target platform", "i386-unknown-mingw32")
  ,("Compiler unregisterised", "NO")
  ,("Tables next to code", "YES")
  ]
 }}}
 see
 [http://www.haskell.org/haskellwiki/GHC/GHCi#Package_and_documentation_lookup_in_GHCi
 .2C_via_ghc-paths the GHCi haskellwiki page] for further examples.

 `has` and `exists` would still be nice to have, and conditional GHCi
 command definitions are still painful, but the basic functionality is
 there.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1770#comment:3>
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