[Rd] normalizePath() warning

[Prof Brian Ripley]

On Mon, 12 Jun 2006, Duncan Murdoch wrote:

> On 6/12/2006 4:53 PM, Roger D. Peng wrote:
>> I've been getting the following warning after running 'install.packages()' recently:
>>
>> Warning message:
>> insufficient OS support on this platform in: normalizePath(path)
>>
>> Does anyone know what this means?  And does anyone know how I can get rid of the
>> warning?  I've just installed R on a fresh FC5 system so I feel I might have
>> forgotten to install a package/library or something.
>
> This is printed when your R source was compiled without these defines:
>
> #if defined(HAVE_GETCWD) && defined(HAVE_REALPATH)
>
> I guess you can look in your config log to see why you don't have those.

This worked for me on a vanilla FC5 system.  I guess the issue is likely 
to be realpath, whose definition is enclosed by

#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
#endif

so I would review the compiler options used:  -std=gnu99 is recommended 
(and selected by default).  I do get the warning with -std=c89 and 
-std=c99.


-- 
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