R help - Jan 2011 - help on strange installation process of JRI / rJava 0.9.0

Hi Nidhi,
> ... On the other hand, I also found that JRI.jar is missing from
> both of these (piodev...) installations. ...
this is resolved now in the /mnt/tools/r installation.

Background: When compiling R, one needs to provide an option
"--enable-R-shlib" in order that R is capable of dynamically linking
libraries.  Now the desired JRI package (Java calls into R) is part of
the rJava package.  However, only if R was compiled with the above
option does installation of the rJava package include also the JRI
package.  Technically this "autodetect" feature, as they call it,
might make sense, but from the user's and admin's perspective a more
visible warning from the installation of the rJava package certainly
is desirable, if JRI is not going to be provided.

Hence I recompiled and reinstalled R-2-12-1 and rJava 0.9.0
accordingly.

Best, Mirko


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