patch applied (ghc): x86_64: support PIC and therefore, Mac OS X in the NCG

[Wolfgang Thaller]

Thu Dec  7 05:16:07 PST 2006  wolfgang.thaller at gmx.net
  * x86_64: support PIC and therefore, Mac OS X in the NCG
  
  Supporting x86_64-apple-darwin in the NCG basically boils down to supporting
  position-independent code in the NCG.
  PIC code works almost exactly the same as on x86_64-linux, while position-dependent
  code is not supported at all.
  This patch implements -fPIC for x86_64-linux, too, but that is untested.
  
  

    M ./compiler/cmm/CLabel.hs -1 +17
    M ./compiler/cmm/CmmOpt.hs -1 +7
    M ./compiler/main/StaticFlags.hs +4
    M ./compiler/nativeGen/AsmCodeGen.lhs -20 +20
    M ./compiler/nativeGen/MachCodeGen.hs -12 +45
    M ./compiler/nativeGen/PositionIndependentCode.hs -63 +87
    M ./compiler/nativeGen/PprMach.hs -12 +16
    M ./mk/package.mk -1 +4