[R] shared libraries on FreeBSD 4.*

[Prof Brian Ripley]

On Wed, 31 Oct 2001, loren mccarter wrote:

> I've used R for a couple of years on FreeBSD with few problems. Recently,
> a couple of the contributed packages seem to have difficulty finding
> symbols in the shared libraries. Currently, I'm running R 1.3.1 on FreeBSD
> 4.4. I've tried setting LD_LIBRARY_PATH to /usr/local/lib
> and some other things. The packages I've had trouble with are:
>
> Matrix 0.3.15
> RODBC 0.8.3
> RSPython 0.3
>
> Matrix could not find my BLAS library:
>
>      checking for dgemm_ in -lcomplib.sgimath... no
>      checking for zherk in -lblas... no
>      checking for dgemm_ in -lblas... no
>      could not find your BLAS library
>      ERROR: Configuration failed for package `Matrix'
>
> I solved the problem with Matrix by adding -L/usr/local/lib to the 'FLIBS'
> variable in $RHOME/etc/Makeconf. Then, it found the library and installed
> just fine.

> RODBC gives me the following error:
>
>    Installing source package `RODBC' ...
>    creating cache ./config.cache
>    checking for library containing SQLTables... no
>    configure: error: no ODBC driver manager found
>    ERROR: Configuration failed for package `RODBC'
>
> I have unixODBC and libiodbc installed in /usr/local/lib and "nm
> -g" returns the symbol SQLTables in libiodbc.so, libodbc.so,
> libodbcpsql.so, libpsqlodbc.so. -L/usr/local/lib is in the FLIBS
> statement so that is not the problem.

I think it is. FLIBS refers to Fortran, and this is looking for C
libraries.  (Also, the configure script for RODBC is not looking for
FLIBS in $RHOME/etc/Makeconf.)  I think you need to set LIBS to
(not FLIBS) to -L/usr/local/lib -R/usr/local/lib (or whatever the
FreeBSD equivalent is) before running these configure scripts.

That said, on all my platforms having LD_LIBRARY_PATH set correctly works.

>
> RSPython installs fine, but when I load the library in R
> 'library(RSPython' it returns the following:
>
>     Error in dyn.load(x, as.logical(local), as.logical(now)) :
>             unable to load shared library
>     "/usr/local/lib/R/library/RSPython/libs/RSPython.so":
>       /usr/local/lib/R/library/RSPython/libs/RSPython.so: Undefined symbol
>     "pthread_create"
>     Error in library(RSPython) : .First.lib failed

do ldd on RSPython.so: I suspect -lpthreads is needed (plus an appropriate
path).

>
>
> Am I correct in thinking that these three issues result from a
> common problem with R and shared libraries on FreeBSD? Can

Well, FreeBSD is not a common platform for R but I recall no other
reports.

> you think of something that I am doing incorrectly upon installation
> or R or the packages that could cause these problems. In case it is
> relevant, FreeBSD uses an older version of libtool as compared to the one
> that comes with R. Here is the version information:
>
> FreeBSD libtool:
>   ltmain.sh (GNU libtool) 1.3.4-freebsd-ports (1.385.2.196 1999/12/07
>   21:47:57)
>
> R libtool:
>   ltmain.sh (GNU libtool) 1.3e (1.890 2001/04/06 23:48:27)
>
>
> Thanks for any help you can provide!
>
> Loren
>
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-- 
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 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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