Ok, I found the 'scrm' Rcpp package: here the file scrmr.cpp provides an
interface for calling the scrm C++ application from R. following their
solution, I modified my Makevars file, adding:
OBJECTS.PnuChart = ngraph.o RcppExports.o
OBJECTS.PnuChart = PnuChart/Finder.o
OBJECTS = $(OBJECTS.PnuChart)
Now the linker finds the object files and knows where functions "are".
so, previous error is solved.
but loading still fails with the following message:
/home/fabio/R/x86_64-pc-linux-gnu-library/3.0/NgrapH/libs/NgrapH.so:
undefined symbol: gsl_vector_alloc
Error: loading failed
In fact, I do use gsl, that's why I added RcppGSL in the DESCRIPTION
file at 'LinkingTo'. Also, I use the attribute
'// [[Rcpp::depends(RcppGSL)]]' in those headers where GSL functions are
used, and included <RcppGSL.h>. I do not export those functions because
they're not called directly from R.
still, I get the loading failed error.
Fabio
On 05/05/2015 10:15 PM, Dirk Eddelbuettel wrote:
On 5 May 2015 at 16:28, Fabio Tordini wrote:
| Here is the actual (simple) code:
|
| Finder *f = new Finder();
| f->parseFiles(str_g, str_f, str_s);
So where is Finder implemented?
The computer tells you that you want to use it, but don't supply it.
Dirk
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