On Wed, 5 Nov 2003, David Abrahams wrote:

>  "Ralf W. Grosse-Kunstleve" <rwgk@[...].com> writes:
> 
>  > Hi Doug,
>  >
>  > Mike Owen reports the same problem while compiling Boost.Python extensions
>  > under AIX with g++ 3.2.1 and 3.2.3. type_with_alignment.hpp does not cope with
>  > a type that is 8-byte aligned.
>  >
>  > We have established that the little test below runs under AIX without crashing.
>  >>From that we conclude that AIX does not have strict alignment requirements,
>  > just like the PowerPC Macintosh. Would it seem reasonable to check in the
>  > trivial patch below?
> 
>  FWIW, whether alignment is strict isn't dependent on the OS but on CPU
>  technology.  The alignments that can be generated are dependent not on
>  the OS but on the compiler.  Checking the OS seems like the wrong
>  thing to do.
> 
>  --
>  Dave Abrahams
>  Boost Consulting
>  www.boost-consulting.com

The "right" answer is to use GCC's __attribute__ mechanism to get types of
the correct alignment. I've got a partial patch locally, that I'll try to
complete and test tonight.

	Doug
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