Quoting Saptarshi Guha <saptarshi.g...@gmail.com>:
Hello,
I was looking at the R (installed on RHEL6) shell script and saw
R_HOME_DIR=/usr/lib64/R. Nowhere (and I could have got it wrong) does
it read in the environment value R_HOME_DIR. I have the need to rsync
the entire folder below /usr/lib64/R to another computer into another
directory location. Without changing the R shell script, how can i
force it read in R_HOME_DIR?
Or maybe i misunderstood the bash source?
(Note, i cannot recompile on target machine)
If you can't compile on the target machine, that indicates that you wouldn't
have access to /usr/lib64/R anyway, so you need a different approach.
Fortunately, it's easy to compile into your home directory where you do have
write access. The INSTALL file in the distributed tar.gz file shows
you how to
compile where you want and what link you need to make it accessible. Even
though the file is called INSTALL, it explains how it's not necessary to
install R in order to use it.
HTH
Cheers
Saptarshi
1. I also realize Rscript will not work (i think path is hard coded in the
source)
Beginning of /usr/lib64/R/bin/R
R_HOME_DIR=/usr/lib64/R
if test "${R_HOME_DIR}" = "/usr/lib64/R"; then
case "linux-gnu" in
linux*)
run_arch=`uname -m`
case "$run_arch" in
x86_64|mips64|ppc64|powerpc64|sparc64|s390x)
libnn=lib64
libnn_fallback=lib
;;
*)
libnn=lib
libnn_fallback=lib64
;;
esac
if [ -x "/usr/${libnn}/R/bin/exec/R" ]; then
R_HOME_DIR=/usr/lib64/R
elif [ -x "/usr/${libnn_fallback}/R/bin/exec/R" ]; then
R_HOME_DIR=/usr/lib64/R
## else -- leave alone (might be a sub-arch)
fi
;;
esac
fi
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