[Haskell-cafe] maybe a GHC bug but not sure

[Edward Amsden]

And after a lot more sleep and some digging, it turns out that the
build script was forcing GCC to build the .o file as a 32 bit binary,
and thus causing the "magic" mismatch.

On Mon, May 30, 2011 at 11:20 PM, Edward Amsden <eca7215 at cs.rit.edu> wrote:
> When building the Haskell Objective C bindings tool from
> <http://code.google.com/p/hoc>
>
> Using GHC 7.0.3 for Haskell Platform 2011.2.0.1, OS X 64 bit
>
> HOC compiles HOC_cbits.o before trying to build it into the rest of
> the program (I don't say link because this came up while trying to
> compile:
>
>> [18 of 31] Compiling HOC.StdArgumentTypes ( HOC/HOC/StdArgumentTypes.hs, dist/build/HOC/StdArgumentTypes.o )
>> [loading packages, like you'd see from ghci...]
>> Loading object (static) dist/build/HOC_cbits.o ... ghc: dist/build/HOC_cbits.o: Bad magic. Expected: feedfacf, got: feedface.
>
> GHC says "the impossible happened" and tells me to report it as a GHC
> bug, but based on the odd behavior I think the HOC build script might
> be doing something odd. I just don't have any idea where to start
> looking. For instance, why the heck is it looking at the magic bits
> for an object file while compiling a source file?
>
> Any insight appreciated.
>
> --
> Edward Amsden
> Student
> Computer Science
> Rochester Institute of Technology
> www.edwardamsden.com
>



-- 
Edward Amsden
Student
Computer Science
Rochester Institute of Technology
www.edwardamsden.com