[Haskell-cafe] Re: compiling 32 bits haskell program on 64 bits linux

Christian Maeder Christian.Maeder at dfki.de
Tue Mar 16 13:27:42 EDT 2010

I think you need to install the 32bit ghc first, because you'll need all
the 32bit haskell libs. At least I was able to use the 32bit ghc
(version 6.8.2) on a 64 bit linux by changing the script in the bin
directory from
  exec $GHCBIN $TOPDIROPT ${1+"$@"}
  exec $GHCBIN -optc-m32 -opta-m32 -optl-m32 $TOPDIROPT ${1+"$@"}

(no -fvia-C)

HTH Christian

Vincent Hanquez schrieb:
> Hi Cafe,
> I was looking for a way to generate 32 bits haskell binary on a 64 bits linux.
> I've looked at the user guide and tried to use the -fvia-C with -optc -m32 but
> the generated C file doesn't compile with lots of error messages like the
> following:
> $ ghc -o hello hello.hs -fvia-C -optc "-m32"
> In file included from /usr/lib/ghc-6.10.4/include/Stg.h:206,
>                  from /tmp/ghc15772_0/ghc15772_0.hc:3:0: 
> /usr/lib/ghc-6.10.4/include/Regs.h:235:0:
>      error: invalid register name for ‘R4’
> I can't find any others parameters that seems to do anythings about the code
> generation or around the C compiler. so, does anyone knows if it's possible ? or
> have some documentation/link about this kind of things ?
> Thanks,

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