Martin,
Regarding your question about how to get gfortran to accept the -arch
option,
it can't. That is an enhancement that Apple added to their gcc which wasn't
(and is unlikely
to ever be) ported to FSF gcc. The approach FSF gcc uses (which we have
supported since
I assumed maintainership) is a 64-bit (for powerpc/i386) or 32-bit (for x86_64)
multilib.
If you build gcc44 under x86_64, it is built as a x86_64 native compiler (which
executes
and generates 64-bit code as the default). If you want to generate 32-bit code
with this
compiler, you pass it -m32 just like our compiler wrappers do with the Snow
Leopard compilers.
Keep in mind that if you have been explicitly linking to -lgfortran using
-L%p/lib/gcc44/lib
this will have to be changed to -L%p/lib/gcc4.4/lib/i386. Likewise, if you are
on i386 fink
and want to generate 64-bit code you will pass -m64 and use
-L%p/lib/gcc4.4/lib/x86_64 if
you are explicitly linking.
Jack
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