patch applied (ghc): configure: triplet: accept i486 CPU (and more), more vendors and OSes

[Ian Lynagh]

Mon Feb 28 22:41:08 PST 2011  Sergei Trofimovich <slyfox at community.haskell.org>
  * configure: triplet: accept i486 CPU (and more), more vendors and OSes
  
  Gentoo has interesting ports:
  
    - freebsd with following triplet:
          ./configure --build=i686-gentoo-freebsd8 --host=i686-gentoo-freebsd8 --host=i686-gentoo-freebsd8
      should be recognized as 'i386-unknown-freebsd'
    - 'pc' vendor along with non-'i386' is very common:
          ./configure --build=i486-pc-linux-gnu --i486-pc-linux-gnu --host=i486-pc-linux-gnu
          ./configure --build=i686-pc-linux-gnu --i686-pc-linux-gnu --host=i686-pc-linux-gnu
      should be recognized as 'i386-unknown-linux'
  
  Patch adds:
  
    - 'pc' vendor                 (maps to 'unknown')
    - 'gentoo' vendor             (maps to 'unknown')
    - 'i486', 'i586', 'i686' CPUs (maps to 'i386')
    - 'freebsd8' OS               (maps to 'freebsd')

    M ./aclocal.m4 -2 +13

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=ghc;a=darcs_commitdiff;h=20110301064108-6895e-98b12bc571ae168404e39df3d634c99dc32c3965.gz