[SciPy-user] OS-X Universal binary?

Robert Kern robert.kern@gmail....
Thu Mar 26 16:06:10 CDT 2009

On Thu, Mar 26, 2009 at 16:03, David Cournapeau <cournape@gmail.com> wrote:
> On Fri, Mar 27, 2009 at 5:54 AM, Robert Kern <robert.kern@gmail.com> wrote:
>> On Thu, Mar 26, 2009 at 15:46, Zachary Pincus <zachary.pincus@yale.edu> wrote:
>>>> On Fri, Mar 27, 2009 at 2:11 AM, Chris Barker
>>>> <Chris.Barker@noaa.gov> wrote:
>>>>> OK -- it turns out that the Universal binary has more than just the
>>>>> Universal issue. The extensions depend on libgfortran, too
>>>> Hm, right - that by itself is expected. I guess we never thought about
>>>> it because every developer has gfortran. But surely, it cannot work as
>>>> we do currently.
>>>> That's actually a non trivial problem, unless libgfortran can easily
>>>> be statically linked. Hm...
>>> In the past, (I think) I've forced static linkage by hiding
>>> libgfortran.dylib and *just* having libgfortran.a where the linker can
>>> find it. (On OS X there's no other reliable way to force static
>>> linkage of anything, so much does the linker prefer dylibs!) This
>>> worked for me when I needed to distribute bits of scipy that I'd
>>> parted out for other purposes, and built as 2-way (32bit i386/PPC) fat
>>> binaries. But that was  with a previous version of gfortran from the R
>>> tools site.
>> Actually, there is. Use -Wl,-search_paths_first to tell the linker to
>> look at your -L flags before the standard locations. From a snippet of
>> email I (apparently) have to trot out every few months or so
> When I tried something similar, I got the same errors as in the following email:
> http://gcc.gnu.org/ml/fortran/2008-12/msg00237.html
> There is not much documentation on this, but I wonder why gfortran
> would grow a --static-libgfortran if the result was exactly the same
> as linking statically libgfortran.a ? You never encounter problems
> when statically linking the fortran runtime ?

Not in any of the times I have tried it. However, there have been a
few point releases since then. Maybe they changed something that broke

Robert Kern

"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
  -- Umberto Eco

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