NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
Si Liu,
The "expat" package is bundled with the UDUNITS-2 package but is not built and
installed if the "expat" package is already on the computer (the configure(1)
searches for the symbol XML_StopParser in the system libraries). Apparently,
you already have an installed "expat" library.
You might look for the "expat" library and include its directory in your
LD_LIBRARY_PATH.
> Dear Unidata support team,
>
> I got a udunits2 error when working with cfchecks:
>
> cfchecks ~/Examples/NCL/training2012/input.nc
>
> Traceback (most recent call last):
> File
> "/glade/apps/opt/python/2.7.3/gnu-westmere/4.7.2/bin/cfchecks", line
> 8, in <module>
> load_entry_point('cfchecker==2.0.3', 'console_scripts',
> 'cfchecks')()
> File
> "/glade/apps/opt/python/2.7.3/gnu-westmere/4.7.2/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg/pkg_resources.py",
> line 318, in load_entry_point
> File
> "/glade/apps/opt/python/2.7.3/gnu-westmere/4.7.2/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg/pkg_resources.py",
> line 2221, in load_entry_point
> File
> "/glade/apps/opt/python/2.7.3/gnu-westmere/4.7.2/lib/python2.7/site-packages/setuptools-0.6c11-py2.7.egg/pkg_resources.py",
> line 1954, in load
> File
> "/glade/apps/opt/python/2.7.3/gnu-westmere/4.7.2/lib/python2.7/site-packages/cfchecker/__init__.py",
> line 2, in <module>
> from cfchecker.cfchecks import getargs, CFChecker
> File
> "/glade/apps/opt/python/2.7.3/gnu-westmere/4.7.2/lib/python2.7/site-packages/cfchecker/cfchecks.py",
> line 48, in <module>
> udunits=CDLL("libudunits2.so")
> File
> "/glade/apps/opt/python/2.7.3/gnu-westmere/4.7.2/lib/python2.7/ctypes/__init__.py",
> line 365, in __init__
> self._handle = _dlopen(self._name, mode)
> OSError: /glade/apps/opt/udunits/2.1.24/gnu/4.7.2/lib/libudunits2.so:
> undefined symbol: XML_ParserCreate
>
> FYI, I have manually put the path of libudunits2 in my LD_LIBRARY_PATH
> siliu@yslogin2:~/Packages/udunit0-2.1.24/udunits-2.1.24_GNU446> echo
> $LD_LIBRARY_PATH
> /ncar/opt/lsf/8.3/linux2.6-glibc2.3-x86_64/lib:/glade/apps/opt/udunits/2.1.24/gnu/4.7.2/lib
>
> I searched the error information online and found the following
> discussion from the unidata forum:
> http://www.unidata.ucar.edu/support/help/MailArchives/udunits/msg00802.html
> But I can not figure out the exact solution.
>
> Here is how I compiled my udunits-2.1.24:
> export cc=gcc
> export CXX=g++
> export F77=gfortran
> libtoolize --force --copy
> ./configure --prefix=/glade/u/home/siliu/udunits/2.1.24/gnu/4.7.2
>
> I also checked my library directory:
> siliu@yslogin2:~/udunits/2.1.24/gnu/4.7.2> ls lib
> libudunits2.a libudunits2.la libudunits2.so libudunits2.so.0
> libudunits2.so.0.1.0
>
> siliu@yslogin2:~/udunits/2.1.24/gnu/4.7.2> nm lib/libudunits2.so |
> grep XML
> U XML_ErrorString
> U XML_GetBase
> U XML_GetCurrentColumnNumber
> U XML_GetCurrentLineNumber
> U XML_GetErrorCode
> U XML_Parse
> U XML_ParserCreate
> U XML_ParserFree
> U XML_SetBase
> U XML_SetCharacterDataHandler
> U XML_SetElementHandler
> U XML_SetXmlDeclHandler
> U XML_StopParser
> I want to know how I can have these symbols defined when installing
> udunits2.
>
> Another problem that confused me is that I had some old installation
> of udunits2.
> It contains libexpat.so under "lib". (It does not work for cfchecks as
> well. )
> Should I get libexpat when installing udunits2?
>
> ls /glade/apps/opt/udunits/2.1.24/gnu/4.4.6/lib
> libexpat.a libexpat.la libexpat.so libexpat.so.0 libexpat.so.0.0.0
> libudunits2.a libudunits2.la libudunits2.so libudunits2.so.0
> libudunits2.so.0.1.0
>
> Thank you for your help in advance.
>
> Best wishes,
> Sincerely Si Liu
> NCAR CISL Consultant
>
>
>
> Si Liu
> Consulting Services Group
> NCAR Computational & Information Services Laboratory
> Knowledge Management Chair of SEA
> Office: Mesa Lab, Room 51A
> Phone: (303) 497-2430
Regards,
Steve Emmerson
Ticket Details
===================
Ticket ID: BRT-487845
Department: Support UDUNITS
Priority: Normal
Status: Closed