You need to ensure that libRSNativeJava.so is in your LD_LIBRARY_PATH: last time I looked SJava came with scripts to achieve this, and I suspect you need to read the documentation about them.

As a further note, these are programming questions about a non-R product, and R-help is _really not_ the appropriate forum. Do please consult the posting guide.

On Thu, 18 Nov 2004, Yasser El-Zein wrote:

Thank you Prof Ripley for your guidance. I re-installed gpp and SJava
installed correctly.
I am now running into this problem: When I load the SJava library I get:

library(SJava)
Error in dyn.load(x, as.logical(local), as.logical(now)) :
       unable to load shared library
"/usr/local/lib/R/site-library/SJava/libs/SJava.so":
 libRSNativeJava.so: cannot open shared object file: No such file or directory
Error in library(SJava) : .First.lib failed for 'SJava'

The file does exit:
$ ls -la /usr/local/lib/R/site-library/SJava/libs/SJava.so
-rwxr-xr-x  1 root staff 283388 Nov 18 13:27
/usr/local/lib/R/site-library/SJava/libs/SJava.so

I then ran:
$ R CMD ldd /usr/local/lib/R/site-library/SJava/libs/SJava.so
               libRSNativeJava.so => not found
       libjvm.so => not found
       libR.so => /usr/lib/R/lib/libR.so (0x40014000)
       libc.so.6 => /lib/tls/libc.so.6 (0x401df000)
       libblas.so.3 => /usr/lib/atlas/libblas.so.3 (0x4031a000)
       libg2c.so.0 => /usr/lib/libg2c.so.0 (0x40663000)
       libm.so.6 => /lib/tls/libm.so.6 (0x40681000)
       libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x406a5000)
       libpcre.so.3 => /usr/lib/libpcre.so.3 (0x406ae000)
       libbz2.so.1.0 => /usr/lib/libbz2.so.1.0 (0x406be000)
       libz.so.1 => /usr/lib/libz.so.1 (0x406ce000)
       libreadline.so.4 => /lib/libreadline.so.4 (0x406df000)
       libdl.so.2 => /lib/tls/libdl.so.2 (0x4070b000)
       libncurses.so.5 => /lib/libncurses.so.5 (0x4070f000)
       /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x80000000)

libjvm.so does exist in 4 locations in my intel box running debian:
/opt/splus/java/jre/lib/i386/client/libjvm.so
/opt/splus/java/jre/lib/i386/server/libjvm.so
/opt/j2sdk1.4.2_06/jre/lib/i386/server/libjvm.so
/opt/j2sdk1.4.2_06/jre/lib/i386/client/libjvm.so

I have JAVA_HOME defined as:
$ echo $JAVA_HOME
/opt/j2sdk1.4.2_06/

Your further help is greatly appreciated.

On Thu, 18 Nov 2004 19:27:53 +0000 (GMT), Prof Brian Ripley
<[EMAIL PROTECTED]> wrote:
Seem pretty straightforward to me: either gpp is not a C++ compiler or it
does not work (possibly because LD_LIBRARY_PATH does not contain its
run-time libraries).



On Thu, 18 Nov 2004, Yasser El-Zein wrote:

I failed to build SJava dure to teh error below. Any ideas?

# R CMD INSTALL -c SJava_0.68-0.tar.gz
* Installing *source* package 'SJava' ...
checking for java... /opt/j2sdk1.4.2_06//bin/java
Java VM /opt/j2sdk1.4.2_06//bin/java
checking for javah... /opt/j2sdk1.4.2_06//bin/javah
Looking in /opt/j2sdk1.4.2_06/include
Looking in /opt/j2sdk1.4.2_06/include/linux
checking for g++... no
checking for c++... no
checking for gpp... gpp
checking for C++ compiler default output... b.out
checking whether the C++ compiler works... configure: error: cannot
run C++ compiled programs.

-- Brian D. Ripley, [EMAIL PROTECTED] 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


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-- Brian D. Ripley, [EMAIL PROTECTED] 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

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