[Rd] Perils of R_LIBRARY_PATH
Prof Brian Ripley
ripley at stats.ox.ac.uk
Sat Feb 16 08:25:11 CET 2008
On Sat, 16 Feb 2008, Hin-Tak Leung wrote:
> Just for interest, may I ask which platform are you referring to?
> You are on a commercial unix platform such as solaris, right?
amd64 Linux -- a bit of tracing shows that to be from a jpackage-d version
of the Sun SDK. So my guess is that the packaging picked up the libs (I
didn't install that particular JDK).
> Older JDK/JRE on unices uses motif as the the AWT peer implementation.
> The motif toolkit libraries are always found on commercial unices, but
> for the same reason, not found on linux (and Sun JDK for linux used to
> link to motif statically, I think). Recent JDK/JRE uses a Gtk AWT peer
> (also the case for gcj). I have Sun JDK 1.4, 1.5, 1.6 and the newly
> open-sourced 1.7 (this comes with fedora 8) on linux (as well as gcj),
> but none of them have gtk libs bundled... but I can imagine Sun need to
> ship gtk libs with jdk for older commercial unices - newer commercial unices
> may or may not have the gtk libs. (some do, I believe).
Solaris 10 has Gtk2 but not cairo (which is relevant as R will have a
cairo-based version of X11).
> Prof Brian Ripley wrote:
>> The R front end sets (via etc/ldpath) R_LIBRARY_PATH, including
>> R_JAVA_LD_LIBRARY_PATH. Perhaps the later is too obliging, as I've just be
>> caught by it in a way that took me a while to track down.
>> One of my machines has a Sun jdk1.6.0* JDK installed, and as a result
>> we have
>> What I was not aware of was that the Sun JDK contains Gtk+ libraries such
>> as cairo and pango, and those were older than the ones whose headers I had
>> compiled against which eventually resulted in a crash.
>> It seems to be an issue only for a JDK: perhaps Simon can tweak his
>> incantations to use only the JRE library path (and avoid the '../lib/amd64'
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
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