Did none of you notice the Makefile in that directory?
On Tue, 8 Feb 2005, Huntsinger, Reid wrote:
Rtest.o is just an object file, and the second call to gcc is really a call to ld and creates Rtest.so, a shared library. Neither is executable. Probably you want to compile Rtest.c into an executable; it does have the "main" function after all. Perhaps
gcc -L/usr/local/lib -o Rtest Rtest.o -L/usr/lib/R/bin -lR
Should be -L`R RHOME`/lib for R>=2.0.0 (and that Makefile needs updating).
From ONEWS
o The dynamic libraries libR and libRlapack are now installed in R_HOME/lib rather than R_HOME/bin.
You may also need to set LD_LIBRARY_PATH: I do to include /usr/local/lib.
would work.
Reid Huntsinger
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Tuesday, February 08, 2005 12:14 PM To: Rau, Roland; r-help@stat.math.ethz.ch Subject: Re: [R] simple example of C interface to R
On Tue, Feb 08, 2005 at 10:55:01AM +0100, Rau, Roland wrote:
do you know already the page of Roger D. Peng? He has a document entitled "An Introduction to the .C Interface to R". It is located at: http://www.biostat.jhsph.edu/~rpeng/docs/interface.pdf
thanks. that's a nice tutorial, but what i'd really like to do is write a program with R embedded in it (and not have to load the interpreter). i found some documentation for doing that here: http://cran.r-project.org/doc/manuals/R-exts.html#Embedding-R-under-Unix_002 dalikes
now i'm going through the tests/Embedding directory (included with the R source distribution).
i've gotten Rtest.c to compile with:
$ R CMD SHLIB Rtest.c gcc -I/usr/lib/R/include -I/usr/local/include -D__NO_MATH_INLINES -mieee-fp -fPIC -march=pentium4 -O3 -pipe -fomit-frame-pointer -c Rtest.c -o Rtest.o gcc -shared -L/usr/local/lib -o Rtest.so Rtest.o -L/usr/lib/R/bin -lR
then when i try to run Rtest.o, i get:
-/bin/bash: ./Rtest.o: cannot execute binary file
Rtest.c contains:
#include "embeddedRCall.h"
int main(int argc, char *argv[]) { eval_R_command("print", argc, argv); return(0); }
embeddedRCall.h contains:
#ifndef EMBEDDED_R_CALL_H #define EMBEDDED_R_CALL_H
#include <Rinternals.h>
int eval_R_command(const char *funcName, int argc, char *argv[]); SEXP Test_tryEval(SEXP expression, int *errorOccurred); void init_R(int argc, char **argv);
#endif
i also get the "cannot execute binary file" error when trying to compile and run the following code from the documentation:
int Rf_initEmbeddedR(int argc, char **argv) { /* This is already compiled into R */ Rf_initialize_R(argc, argv); setup_Rmainloop(); return(1); }
int main(int ac, char **av) { /* do some setup */ // Rf_initEmbeddedR(argc, argv); /* do some more setup */
char *argv[]= {"REmbeddedPostgres", "--gui=none", "--silent"}; Rf_initEmbeddedR(sizeof(argv)/sizeof(argv[0]), argv);
/* submit some code to R, which is done interactively via run_Rmainloop(); */ end_Rmainloop(); return 0; }
what am i doing wrong?
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-- Brian D. Ripley, [EMAIL PROTECTED] 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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