[Nexus] problems with nxpython

[Zolnierczuk, Piotr]

Thanks, it does work now

It would probably be a good thing to document what are the 'minimal' requirements for the build process.
I just found README.developers  that does tell me to upgrade in case of errors, but it does not tell me what versions are required.


Piotr

 __________________________________________________________________
 Piotr Adam Zolnierczuk
 Indiana University                          phone:  (812) 855-3613
 Cyclotron Facility                          fax:    (812) 855-6645
 2401 Milo B Sampson Ln               e-mail:  pzolnier at indiana.edu<mailto:pzolnier at indiana.edu>
 Bloomington,IN 47408, USA   http://www.iucf.indiana.edu/u/pzolnier
 __________________________________________________________________
                   written on recycled electrons
________________________________
From: Akeroyd, FA (Freddie) [mailto:F.A.Akeroyd at rl.ac.uk]
Sent: Sunday, February 10, 2008 6:28 PM
To: Zolnierczuk, Piotr; nexus at nexusformat.org
Subject: RE: [Nexus] problems with nxpython

Hi,

The problem with missing symbols should now be fixed in the latest 4.1 branch snapshot which is available from

http://download.nexusformat.org/kits/snapshots.shtml

though all the functions were present in the NeXus library, they were not exported correctly in all circumstances.

With regard to building from svn, you are using the correct sequence of commands and just need to update your installed copy of autoconf - the new INT64 support requires autoconf-2.61 or higher.

Regards,

Freddie

________________________________
From: nexus-bounces at nexusformat.org [mailto:nexus-bounces at nexusformat.org] On Behalf Of Zolnierczuk, Piotr
Sent: 09 February 2008 19:05
To: nexus at nexusformat.org
Subject: [Nexus] problems with nxpython

Hi:
I am having problems with NeXus Python bindings

When I invoke python interpreter and 'import nxpython' I get the following message
$ export PYTHONPATH=$HOME/lib/nexus-r980/lib/python2.4/site-packages
$ export LD_LIBRARY_PATH=$HOME//lib/nexus-r980/lib:$HOME/lib/nexus-r980/lib/python2.4/site-packages
$ python
Python 2.4.3 (#1, Apr  7 2007, 17:50:23)
[GCC 4.1.1 20061011 (Red Hat 4.1.1-30)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import nxpython
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
  File "/home/zolnie/lib/nexus-r980/lib/python2.4/site-packages/nxpython.py", line 5, in ?
    import libnxpython
ImportError: /home/zolnie/lib/nexus-r980/lib/python2.4/site-packages/libnxpython.so: undefined symbol: putNXDatasetValue
>>>

And when I just try to link I get a host of unresolved symbols
$ gcc main.c -L$HOME/lib/nexus-r980/lib -L$HOME/lib/nexus-r980/lib/python2.4/site-packages -lnxpython -lNeXus -lpython2.4
/home/zolnie/lib/nexus-r980/lib/python2.4/site-packages/libnxpython.so: undefined reference to `putNXDatasetValue'
/home/zolnie/lib/nexus-r980/lib/python2.4/site-packages/libnxpython.so: undefined reference to `getNXDatasetDim'
/home/zolnie/lib/nexus-r980/lib/python2.4/site-packages/libnxpython.so: undefined reference to `getNXDatasetValue'
/home/zolnie/lib/nexus-r980/lib/python2.4/site-packages/libnxpython.so: undefined reference to `dropNXDataset'
/home/zolnie/lib/nexus-r980/lib/python2.4/site-packages/libnxpython.so: undefined reference to `getNXDatasetText'
/home/zolnie/lib/nexus-r980/lib/python2.4/site-packages/libnxpython.so: undefined reference to `createNXDataset'
/home/zolnie/lib/nexus-r980/lib/python2.4/site-packages/libnxpython.so: undefined reference to `getNXDatasetRank'
/home/zolnie/lib/nexus-r980/lib/python2.4/site-packages/libnxpython.so: undefined reference to `createTextNXDataset'
/home/zolnie/lib/nexus-r980/lib/python2.4/site-packages/libnxpython.so: undefined reference to `getNXDatasetType'
collect2: ld returned 1 exit status

Running nm -B libNeXus.so reveals that the above symbols are, indeed, defined in libNeXus.so , so I guess I am doing something silly.
I tried r980 and also 4.1, 4.0.

My machine is a 2xDualCore AMD64 running Scientific Linux 5 (a virtual clone of RHEL5):

 *   gcc-4.1.1
 *   swig-1.3.29
 *   automake-1.9.6
 *   autoconf-2.59-12
 *   libtool-1.5.22
 *   python-2.4.3
 *   java-1.5.0


BTW what is the correct way of building when extracting from svn?
./autogen.sh
./configure [options]
make
make install

Cause when I run ./autogen.sh I get the following error
$ ./autogen.sj
Building configure...
configure.ac:534: error: possibly undefined macro: AC_TYPE_INT64_T
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
configure.ac:535: error: possibly undefined macro: AC_TYPE_UINT64_T
configure.ac:536: error: possibly undefined macro: AC_TYPE_LONG_LONG_INT
configure.ac:537: error: possibly undefined macro: AC_TYPE_UNSIGNED_LONG_LONG_INT
done.


Any ideas what am I missing?
Cheers
            Piotr
 __________________________________________________________________
 Piotr Adam Zolnierczuk
 Indiana University                          phone:  (812) 855-3613
 Cyclotron Facility                          fax:    (812) 855-6645
 2401 Milo B Sampson Ln               e-mail:  pzolnier at indiana.edu<mailto:pzolnier at indiana.edu>
 Bloomington,IN 47408, USA   http://www.iucf.indiana.edu/u/pzolnier
 __________________________________________________________________
                   written on recycled electrons

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