[R] RHOME

[Prof Brian Ripley]

On Fri, 3 Feb 2006, Peter Dalgaard wrote:

> Martin Maechler <maechler at stat.math.ethz.ch> writes:
>
>>     Martyn> R is designed to run from its build directory.  But
>>     Martyn> if your sysadmin installs it with "make install" (as
>>     Martyn> root), then the shell wrapper that is installed in
>>     Martyn> /usr/local/bin/R will have R_HOME pointing to the
>>     Martyn> right location (/usr/local/lib/R).  Literally moving
>>     Martyn> the build directory to another location is the wrong
>>     Martyn> thing to do.
>>
>> well, but very easily fixable, and that's what Daniel is asking
>> for:
>>
>> The default value of R_HOME is only set in exactly one place,
>> namely the 'R' shell script; editing that script - once after
>> the move - is really a piece o'cake.
>
> Hmm, I was about to say the same, but there seems to be unexpected
> references in other places.
>
> find `R RHOME` | xargs grep `R RHOME`
> /usr/lib64/R/bin/R:R_HOME_DIR=/usr/lib64/R
> /usr/lib64/R/bin/R:R_SHARE_DIR=/usr/lib64/R/share
> /usr/lib64/R/bin/R:R_INCLUDE_DIR=/usr/lib64/R/include
> /usr/lib64/R/bin/R:R_DOC_DIR=/usr/lib64/R/doc
>
> (this doesn't normally happen - a SUSE RPM specialty, or due to
> configure flag settings?)

That only happens in the installed copy.  Martin is right if one is 
talking about moving the build tree (and Martyn is right that there is a 
lot of stuff that does not need to be installed in the build tree and that 
`make install' takes all the strain of copying the right bits).

-- 
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