[R] Loading Fortran code with NAG subroutines

Prof Brian Ripley ripley at stats.ox.ac.uk
Wed Jun 20 17:07:09 CEST 2001

On Wed, 20 Jun 2001, Claudio Verzilli wrote:

> Dear R-users,
> System specs
> R-1.2.2 under Unix Sun Solaris 2.7
> Nag Fortran library Mark 18
> when I try to dynload a Fortran77 code (compiled using R CMD SHLIB) which contains calls to NAG subroutines (nagsymbols) I get the following error message
> ld.so.1: /opt/rhome/R-1.2.2/bin/R.bin: fatal: relocation error: file /path/to/myfile.so: symbol nagsymbol_:referenced symbol not found
> I changed the default compilation flags in rhome/Makeconf (i.e. adding -L/path/to/nablib.so, -lnag) without success.
> Any suggestions on what might be missing?

Well, R CMD SHLIB uses R_HOME/etc/Makeconf....

Look in `Writing R Extensions' for how to do this properly, using PKG_LIBS

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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