[Rd] F77_CALL/NAME problem
john.archie.mckown at gmail.com
Wed Mar 25 18:51:08 CET 2015
On Wed, Mar 25, 2015 at 4:44 AM, bstr <nicola.lunardon at hotmail.it> wrote:
> Dear R-devel,
> I am trying to use Fortran DGESV subroutine into C. Here it is the relevant
> part of the C file I am currently writing
> void F77_NAME(DGESV)( int*, int*, double*, int*, int*, double*, int*, int*);
> void solve( int *p, double *A, double *Ainv)
> F77_CALL(DGESV)(p, p, Ain, p, ipiv, Bin, p, &info);
Try lower case.
void F77_NAME(dgesv)( int*, int*, double*, int*, int*, double*, int*, int*);
void solve( int *p, double *A, double *Ainv)
F77_CALL(dgesv)(p, p, Ain, p, ipiv, Bin, p, &info);
The lapack.so file has a name "dgesv_" in it, not DGESV_.
> In order to create the ".so" file to load in R I downloaded the dgesv.f file
> as well as the dependencies (dgetf2.f dgetrf.f dgetrs.f dlaswp.f). As I was
> used to I ran in a terminal
> R CMD COMPILE *.f
> R CMD SHLIB MY_C_FILE.c *.o
> to get the MY_C_FILE.so file. However, when I try to load it in a R session
> I get the following error message "undefined symbol: DGESV_". Similar errors
> are occurring with some other (old) C files that I was used to use a couple
> of years ago. In this connection I have to say that those file were working
> under an older linux version (I guess ubuntu 12.04 LTS rather than the
> current one which is 14.04 LTS).
> Best Regards,
> N. Lunardon
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