[Nexus] problems with nxpython

[Akeroyd, FA (Freddie)]

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/pytho
n2.4/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
 Bloomington,IN 47408, USA   http://www.iucf.indiana.edu/u/pzolnier
 __________________________________________________________________
                   written on recycled electrons   

 

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