darcs patch: Use Cabal configurations to decide whether ghc should use editline. (+1 more)

[Judah Jacobson]

The attached patches use Cabal configurations to simplify the choice
of whether to use editline when building ghc(i).  They also fix a
minor configuration error that occurs when the bootstrapping compiler
has editline installed as a user package but not a global package.

-Judah

Sun Aug 10 11:18:54 PDT 2008  Judah Jacobson <judah.jacobson at gmail.com>
  * #1389: Remove unused configure variable GhcHasEditline.

    M ./Makefile -1
    M ./aclocal.m4 -14
    M ./configure.ac -3
    M ./mk/config.mk.in -3

Sun Aug 10 10:42:54 PDT 2008  Judah Jacobson <judah.jacobson at gmail.com>
  * Use Cabal configurations to decide whether ghc should use editline.

    M ./compiler/Makefile -23
    M ./compiler/ghc.cabal -1 +1
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