[MacPorts] #64698: approach to fix Haskell (GHC) for PowerPC: some progress, ghc @7.6.3 builds for ppc but there is a bug to be fixed

[MacPorts]

#64698: approach to fix Haskell (GHC) for PowerPC: some progress, ghc @7.6.3 builds
for ppc but there is a bug to be fixed
-------------------------------+-------------------------------------------
  Reporter:  barracuda156      |      Owner:  essandess
      Type:  enhancement       |     Status:  assigned
  Priority:  Normal            |  Milestone:
 Component:  ports             |    Version:  2.7.1
Resolution:                    |   Keywords:  powerpc, leopard, snowleopard
      Port:  ghc, ghc-         |
  bootstrap                    |
-------------------------------+-------------------------------------------

Comment (by barracuda156):

 Not so easy ) While reverting that commit did fix compiling that file, and
 the build proceeded quite a bit further, several files fail in a similar
 manner. With some trial and error, looks like reducing or disabling
 optimizations may fix these.

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Ticket URL: <https://trac.macports.org/ticket/64698#comment:37>
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