R help - May 2000 - library() crashes R

I have a problem with R-1.0.1 (and R-1.0.0) running under RedHat Linux
6.2 (on a Dell Inspiron 3800 laptop), and wonder if anyone has seen
something like this and/or can provide a lead.

I load a library containing a mixture of C and Fortran
code:
> library(ssOptim)
Segmentation fault (core dumped)

This library works fine in R-0.65.1 running under RedHat 6.1 on a
variety of systems, and also works fine in R-1.0.1 under Solaris 5.1.
My suspicion is something to do with RedHat 6.2.

Using gdb (with my limited skills) shows the problem to be in:
_dl_relocate_object (...) at ../sysdeps/i386/dl-machine.h:326

This symbol is to be found in /lib/ld-2.1.3.so.

I wondered if this might have been a duplicate symbol, but I think I
have eliminated that problem (using nm).  I guess my next test is to
try it with RedHat 6.1 (but I am fearful that RH6.1 won't install
properly on this laptop - Linux is in general quite difficult to
install on laptops).

I guess I am trying for the long shot that someone has seen something
like this, and been able to figure it out.

Ray Brownrigg
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> I have a problem with R-1.0.1 (and R-1.0.0) running under RedHat Linux
> 6.2 (on a Dell Inspiron 3800 laptop), and wonder if anyone has seen
> something like this and/or can provide a lead.
> 
> I load a library containing a mixture of C and Fortran code:
> > library(ssOptim)
> Segmentation fault (core dumped)
> 
This turned out to be the existence of WRITE statements in one of the
fortran subroutines.  This seemed to result in an undefined symbol
which, when the .so file was created explicitly from a Makefile in the
package source directory, caused the crash.

I'll generate a test example and send it to R-bugs if it looks like
something could be done to help in this situation.

Ray Brownrigg
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at
stat.math.ethz.ch
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