[EMAIL PROTECTED] wrote:
Quoting Prof Brian Ripley <[EMAIL PROTECTED]>:
On Sat, 8 Nov 2008, Roger Levy wrote:
While I have been able to install rjags on my Windows computer, oddly I
have
been unable to install rjags successfully on my 64-bit Linux compute server
(etch, Linux kernel 2.6.18). I am required to specify the JAGS module
directory upon installation; when doing this within R, I get:
install.packages("rjags",configure.args="--with-jags-modules=/usr/local/lib/JAGS/modules/")
which works fine, but then trying to load rjags gives an error:
library(rjags)
\Error in dyn.load(file, DLLpath = DLLpath, ...) :
unable to load shared library
'/usr/local/lib64/R/library/rjags/libs/rjags.so':
libjags.so.1: cannot open shared object file: No such file or directory
Error : .onLoad failed in 'loadNamespace' for 'rjags'
Error: package/namespace load failed for 'rjags'
I'm not sure how to read this error. Does anyone have any suggestions?
It means that ld.so (the runtime linker) cannot find libjags.so.1.
Where is your libjags.so.1? My guess is that you installed it into
/usr/local/lib, since that is what you have for your module path. On a
64-bit Linux system it should be in /usr/local/lib64. (I had to tell the
JAGS installation that via libdir=/usr/local/lib64 on the configure line.)
Debian conforms to the filesystem hierarchy standard (FHS) which
states that libraries go in <prefix>/lib and alternative format
binaries go in <prefix>/lib<qual>. I would prefer it if everyone
agreed on where 64-bit libraries should go. But they don't.
In the mean time, we have to rely on binary packaging to do "the
right thing" on each platform. On Fedora, the rpmbuild system
passes all the right arguments to the configure script so that
JAGS is installed into /usr/lib64.
Brian, Martyn,
Many thanks for your responses -- the issue was indeed that the JAGS .so
files were in the wrong place. I re-installed JAGS with the command
./configure –with-jags-modules=/usr/local/lib/JAGS/modules
–libdir=/usr/local/lib64
and then installation of rjags went off without a hitch.
I posted the final set of commands I used for installation online:
http://quote.ucsd.edu/blogs/rogblog/2008/11/09/installing-rjags-on-64-bit-debian-etch/
so that anyone else running into the same issue is a bit more likely to
find the answer without undue pain.
Best & thanks again.
Roger
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