[R] Loading problem with XML_1.9

[Prof Brian Ripley]

Please don't post to multiple lists: I have removed the BioC-devel list.
This is about MacOS X, and the appropriate list is R-sig-mac.

There is no intrinsic 64-bit problem: package XML 1.9-0 (sic) works fine 
on 64-bit versions of Solaris and Linux.  Most likely there was an 
installation problem, and you do not have a 64-bit version of libxml2 
installed or in the run-time library path.

On Wed, 27 Jun 2007, Luo Weijun wrote:

> Hello all,
> I have loading problem with XML_1.9 under 64 bit
> R2.3.1, which I got from http://R.research.att.com/.

For MacOS X, unstated.

> XML_1.9 works fine under 32 bit R2.5.0. I thought that
> could be installation problem, and I tried
> install.packages or biocLite, every time the package
> installed fine, except some warning messages below:
> ld64 warning: in /usr/lib/libxml2.dylib, file does not
> contain requested architecture
> ld64 warning: in /usr/lib/libz.dylib, file does not
> contain requested architecture
> ld64 warning: in /usr/lib/libiconv.dylib, file does
> not contain requested architecture
> ld64 warning: in /usr/lib/libz.dylib, file does not
> contain requested architecture
> ld64 warning: in /usr/lib/libxml2.dylib, file does not
> contain requested architecture
>
> Here is the error messages I got, when XML is loaded:
>> library(XML)
> Error in dyn.load(x, as.logical(local),
> as.logical(now)) :
>        unable to load shared library
> '/usr/local/lib64/R/library/XML/libs/XML.so':
>  dlopen(/usr/local/lib64/R/library/XML/libs/XML.so,
> 6): Symbol not found: _xmlMemDisplay
>  Referenced from:
> /usr/local/lib64/R/library/XML/libs/XML.so
>  Expected in: flat namespace
> Error: .onLoad failed in 'loadNamespace' for 'XML'
> Error: package/namespace load failed for 'XML'
>
> I understand that it has been pointed out that
> Sys.getenv("PATH") needs to be revised in the file
> XML/R/zzz.R, but I can’t even find that file under
> XML/R/ directory. Does anybody have any idea what
> might be the problem, and how to solve it? Thanks a
> lot!
> BTW, the reason I need to use R64 is that I have
> memory limitation issue with R 32 bit version when I
> load some very large XML trees.
>
> Session information
>> sessionInfo()
> Version 2.3.1 Patched (2006-06-27 r38447)
> powerpc64-apple-darwin8.7.0
>
> attached base packages:
> [1] "methods"   "stats"     "graphics"  "grDevices"
> "utils"     "datasets"
> [7] "base"
>
> Weijun

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595