You need to link to GSL as well. RcppGSL provides the appropriate flags within `RcppGSL::LdFlags()`. See what RcppGSL does itself in its configure scripts: https://github.com/eddelbuettel/rcppgsl/blob/2849b8dd777c8057e524c2141dfeaa8e28840350/inst/skeleton/configure.win .
Kevin On Tue, May 5, 2015 at 2:08 PM, Fabio Tordini <tord...@di.unito.it> wrote: > 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 >> >> _______________________________________________ > Rcpp-devel mailing list > Rcpp-devel@lists.r-forge.r-project.org > https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel >
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