[GHC] #813: -optc-O2 used by default in GhcRtsHcOpts while building 6.5, leading make to fail

#813: -optc-O2 used by default in GhcRtsHcOpts while building 6.5, leading make
to fail
-------------------------+--------------------------------------------------
    Reporter:  guest     |        Owner:         
        Type:  bug       |       Status:  new    
    Priority:  normal    |    Milestone:         
   Component:  Compiler  |      Version:  6.5    
    Severity:  normal    |     Keywords:         
          Os:  Linux     |   Difficulty:  Unknown
Architecture:  powerpc   |  
-------------------------+--------------------------------------------------
GHC-6.4.2 initial compiler

 gcc (GCC) 3.4.4 (Gentoo 3.4.4, ssp-3.4.4-1.0, pie-8.7.8)

 making ghc-6.5-20060703 snapshot

 download, unpack, configure with custom --prefix, and `make`
 eventually errors with:
 {{{
 ../compiler/ghc-inplace -H16m -O -optc-O2 -static -I. -#include
 HCIncludes.h -dcmm-lint   -#include posix/Itimer.h  -c PrimOps.cmm -o
 PrimOps.o
 Prologue junk?:         .globl retryzh_fast
         .type   retryzh_fast, @function
 retryzh_fast:
         mfcr 12
 make[1]: *** [PrimOps.o] Error 255
 make: *** [stage1] Error 1
 }}}

 Adding `GhcRtsHcOpts=-optc-O1` to mk/build.mk resolved this error upon
 running `make` again.

 -- Isaac Dupree

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/813>
GHC <http://www.haskell.org/ghc/>
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