To add to my previous message, I've just noticed in running through the HDF5
build process again that ./ configure returns this configuration:

General Information:
-------------------
   HDF5 Version: 1.8.5
  Configured on: Fri Aug 20 16:25:11 BST 2010
  Configured by: [email protected]
 Configure mode: production
    Host system: i386-apple-darwin10.4.0
      Uname information: Darwin my.domain 10.4.0 Darwin Kernel Version
10.4.0: Fri Apr 23 18:28:53 PDT 2010; root:xnu-1504.7.4~1/RELEASE_I386 i386
       Byte sex: little-endian
      Libraries:
     Installation point: /usr/local/hdf5


That configuration is incorrect. I am running Mac OS 10.6 on an x86_64
architecture. ./configure shows at various steps that it's found a 64-bit
architecture, it's looking at the gcc linker at
/usr/libexec/gcc/i686-apple-darwin10/4.2.1/ld (which is correct), but also
reports

checking dynamic linker characteristics... darwin10.4.0 dyld

which possibly is incorrect. I say possibly because Apple's version of the
gcc linker takes multi-architecture input files and then output just one
file for the correct architecture. Though I don't know why it would report
as above.  I've also tried prefacing make with sudo env ARCHFLAGS="-arch
x86_64", but the end result is the same.

The tests shouldn't pass if it were building for the wrong architecture,
anyway, so this is probably all a red herring. (Recall that I also tried the
binaries on the website.) Has anyone installed HDF5 on Mac OS 10.6 lately
and seen this behavior?

Regards,

Eric


On Fri, Aug 20, 2010 at 4:10 PM, Eric Pashman <[email protected]>wrote:

> I'm having all kinds of problems installing PyTables, whose developer
> suggested I seek help here, as the problem seems related to my HDF5
> installation or its use of SZIP.
>
> First, my system configuration:
>
> Mac OS 10.6.4
> Intel Core 2 Duo (64-bit)
>
> Python 2.7 (binaries from python.org)
> Numpy 1.5.0b1 (binaries from scipy.org)
>
> I've installed all of Pytables's dependencies, and those dependencies'
> dependencies: Numexpr (1.4, via easy_install), bzip2 (1.0.5, built from
> source), SZIP (2.1, built from source), LZO (2.03, built from source), zlib
> (1.2.5, built from source), all without apparent problems. The stuff I built
> from source passed all tests in make check/test.
>
> I tried installing the HDF5 1.8.5 binaries available on the website, and
> when that didn't work I built it from source. The tests in make check/test
> all PASS, except a couple are SKIPPED. But when I try to install PyTables
> (both via easy_install and via setup.py), things go wrong. This first step
> yields no errors, but there's a scary warning about not finding the HDF5
>  runtime):
>
> tables-2.2 myuser$ sudo python setup.py build_ext --inplace
> * Found numpy 1.5.0b1 package installed.
> * Found numexpr 1.4 package installed.
> * Found HDF5 headers at ``/usr/local/include``, library at
> ``/usr/local/lib``.
> .. WARNING:: Could not find the HDF5 runtime.
>    The HDF5 shared library was *not* found in the default library
>    paths. In case of runtime problems, please remember to install it.
> * Found LZO 2 headers at ``/usr/local/include``, library at
> ``/usr/local/lib``.
> * Skipping detection of LZO 1 since LZO 2 has already been found.
> * Found bzip2 headers at ``/usr/include``, library at ``/usr/lib``.
> * Found pthreads headers at ``/usr/include``, library at ``/usr/lib``.
> running build_ext
> cythoning tables/linkExtension.pyx to tables/linkExtension.c
> building 'tables.linkExtension' extension
>
> The same thing happens if I use the --hdf5=whatever command. There's more
> output that includes a bunch of architectural warnings, but no errors. That
> looks OK to me because the errors are all for ppc and i386 architectures,
> and I should need the x86_64 stuff. Then if I run Python and try to load
> Pytables, I get this error:
>
> >> import tables
> Traceback (most recent call last):
>   File "<stdin>", line 1, in <module>
>   File "tables/__init__.py", line 63, in <module>
>     from tables.utilsExtension import getPyTablesVersion, getHDF5Version
> ImportError: dlopen(tables/utilsExtension.so, 2): Symbol not found:
> _SZ_BufftoBuffCompress
>   Referenced from: /usr/local/src/tables-2.2/tables/utilsExtension.so
>   Expected in: flat namespace
>  in /usr/local/src/tables-2.2/tables/utilsExtension.so
>
> I've ended up with the same error through every permutation of the
> installation process that I've tried. I rebuilt HDF5 several times, and I
> verified that it was finding the SZIP libraries; The HDF5 ./configure even
> outputted this line:
>
> checking for SZ_BufftoBuffCompress in -lsz... yes
>
> Yet that seems to be the stumbling block.  Does anyone know anything about
> SZ_BufftoBuffCompress? Very little shows up on Google, and nothing on this
> mailing list. I assume from the name that it is a SZIP thing, so I tried
> reinstalling that several times, building HDF5 with and without the SZIP
> flag, etc., all to no avail.
>
> I'd be grateful for any pointers.
>
> Regards,
>
> Eric
>
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