[Rcpp-devel] iak problem -- dyn.load unable to load shared object

[Romain Francois]

Do you have the same version of Rcpp as root and as non root ?

You can use c++filt to demangle the name, e.g. what does this give you:

$ c++filt _ZN4Rcpp8internal14r_vector_startILi14EdEEPT0_P7SEXPREC

r_vector_start has changed in 0.10.1, i.e. it lost a template parameter, 
which is likely to be the case here. I suppose you have two versions of 
Rcpp installed;

Romain

Le 13/12/12 17:08, Glenn Lawyer a écrit :
> The problem seems to be file privileges. When I run R as superuser, it
> works. When I run as a normal user, I continue getting
>
> Error in dyn.load(libLFile) :
>    unable to load shared object '/tmp/RtmpTFHtzm/file1d365e7eaf51.so':
>    /tmp/RtmpTFHtzm/file1d365e7eaf51.so: undefined symbol:
> _ZN4Rcpp8internal14r_vector_startILi14EdEEPT0_P7SEXPREC
>
> Note that the names of the undefined symbol is the same for all of the
> ways and examples I have tested, which include:
> cxxfunction (following the vignette)
> cppFunction (following Hadley's tutorial)
> R CMD INSTALL -l foo mypackage
> where "mypackage" is created by Rcpp.package.skeleton("mypackage")
> R CMD INSTALL -l foo somepackage.tar.gz
> where "somepackage" is a package downloaded from CRAN which uses Rcpp.
>
> I would very much appreciate a hint/suggestion as to which
> folders/directories/paths I may need to check to get the file
> permissions correct.
>
> Does the name of the undefined symbol tell you anything? If you ignore
> some characters, it reads
> ...Rccp.internal..r_vector_start...SEXPR..
>
> +glenn
>
>
>
> On 12/12/2012 05:15 PM, Dirk Eddelbuettel wrote:
>> Works for me:
>>
>> R> require(Rcpp)
>> R> require(inline)
>> Loading required package: inline
>> R> inc <- '
>> +    using namespace Rcpp;
>> +    double norm( double x, double y ) {
>> +    return sqrt( x*x + y*y );
>> +    }
>> +    RCPP_MODULE(mod) {
>> +    function( "norm", &norm );
>> +    }
>> + '
>> R> fx <- cxxfunction(signature(), plugin="Rcpp", include=inc)
>> R>
>> R> mod <- Module( "mod", getDynLib(fx) )
>> R>
>> R> mod$norm( 3, 4 )
>> [1] 5
>> R>
>> R> sessionInfo()
>> R version 2.15.2 (2012-10-26)
>> Platform: x86_64-pc-linux-gnu (64-bit)
>>
>> locale:
>>   [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C               LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8     LC_MONETARY=en_US.UTF-8
>>   [6] LC_MESSAGES=en_US.UTF-8    LC_PAPER=C                 LC_NAME=C                  LC_ADDRESS=C               LC_TELEPHONE=C
>> [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
>>
>> attached base packages:
>> [1] stats     graphics  grDevices utils     datasets  methods   base
>>
>> other attached packages:
>> [1] inline_0.3.10   RQuantLib_0.3.9 Rcpp_0.10.1.5
>>
>> loaded via a namespace (and not attached):
>> [1] compiler_2.15.2 tools_2.15.2
>> R>
>>
>> That is with Rcpp from SVN but that shouldn't matter.
>>
>> Dirk
>>
>
> --
> --------------------------------------------------------------
> Pirating science, because open access isn't always open enough
> www.scipirate.com                                    @piratesci
>
>       Dr. Glenn Lawyer
>       +352 661 967 244
>       Max-Planck-Institut für Informatik
>       Computational Biology and Applied Algorithmics
>       Campus E1 4
>       66123 Saarbrücken, Germany
>       http://bioinf.mpi-inf.mpg.de/~lawyer
>
>
>
> _______________________________________________
> Rcpp-devel mailing list
> Rcpp-devel at lists.r-forge.r-project.org
> https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
>


-- 
Romain Francois
Professional R Enthusiast
+33(0) 6 28 91 30 30

R Graph Gallery: http://gallery.r-enthusiasts.com

blog:            http://romainfrancois.blog.free.fr
|- http://bit.ly/RE6sYH : OOP with Rcpp modules
`- http://bit.ly/Thw7IK : Rcpp modules more flexible