[Rcpp-devel] linking error when using matrices?

[Hao Ye]

Hi,

I just got started using Rcpp after spending a fair amount of time working in the two separately. I'm currently running into some errors with c++ code that tries to use the matrix classes in Rcpp:

> > library(Rcpp)
> > cppFunction("int mwe() {NumericMatrix mat(1,1); return 0;}")
> 
> Error in dyn.load("/var/folders/zf/w0dsd0yn3d7czjqv5rbj9xph0000gn/T//RtmplA25bk/sourcecpp_fb48bcd5d63/sourceCpp_14740.so") : 
>   unable to load shared object '/var/folders/zf/w0dsd0yn3d7czjqv5rbj9xph0000gn/T//RtmplA25bk/sourcecpp_fb48bcd5d63/sourceCpp_14740.so':
>   dlopen(/var/folders/zf/w0dsd0yn3d7czjqv5rbj9xph0000gn/T//RtmplA25bk/sourcecpp_fb48bcd5d63/sourceCpp_14740.so, 6): Symbol not found: __ZNK4Rcpp7RObject4attrERKNSt3__112basic_stringIcNS1_11char_traitsIcEENS1_9allocatorIcEEEE
>   Referenced from: /var/folders/zf/w0dsd0yn3d7czjqv5rbj9xph0000gn/T//RtmplA25bk/sourcecpp_fb48bcd5d63/sourceCpp_14740.so
>   Expected in: flat namespace
>  in /var/folders/zf/w0dsd0yn3d7czjqv5rbj9xph0000gn/T//RtmplA25bk/sourcecpp_fb48bcd5d63/sourceCpp_14740.so

This is the same basic error I get when I try to run the RcppGibbs.R example or Rcpp-unitTests.R. C==filt says the 

I'm currently on OS X 10.9 with R 3.0.2 and Rcpp 0.10.6.

Does anyone know how to fix this?

Best,
--
Hao Ye
hye at ucsd.edu