[Rcpp-devel] C++11 in Windows R package

[Dirk Eddelbuettel]

On 29 May 2014 at 12:42, Matteo Fasiolo wrote:
| Hello,
| 
|  I have tried win-builder on a basic package constructed
| with RcppArmadillo.package.skeleton() and
| adding the line:
| 
| CXX_STD = CXX11
| 
| to Makevars.win triggers the error:
| 
| d:/RCompile/CRANpkg/lib/3.1/RcppArmadillo/include/RcppArmadilloConfig.h:90:35: fatal error: RcppArmadilloLapack.h: No such file or directory
| 
| Does this help?

So WIN32 gets undefined when CXX_STD, invalidating the check I have there.
Can you have a look at the sources and see where WIN32 gets undefined?

Dirk
 
| Matteo
| 
| 
| 
| On Wed, May 28, 2014 at 11:47 PM, Matteo Fasiolo <matteo.fasiolo at gmail.com>
| wrote:
| 
|     Hi Dirk,
| 
|      many thanks for the prompt reply.
| 
|     Tomorrow I will simplify the package to locate the origin of the bug (which
|     should
|     be caused by one of the dependencies I guess).
|    
|     Matteo
|    
| 
|     On Wed, May 28, 2014 at 11:23 PM, Dirk Eddelbuettel <edd at debian.org> wrote:
| 
| 
|         Matteo,
| 
|         I may have found it. It is not as broken as I feared.  At the end of
|         RcppArmadilloConfig.h we have
| 
|         // R can be built with its own Rlapack library, or use an external
|         // one. Only the latter has zgesdd, a complex-valued SVD using
|         divide-and-conquer
|         #ifdef WIN32
|           // on Windows we do not assume ZGESDD
|           #define ARMA_DONT_USE_CX_GESDD 1
|         #else
|           // on the other OSs we test via LAPACK_LIBS (in configure) which
|           // updates this include file
|           #include <RcppArmadilloLapack.h>
|         #endif
| 
|         so it was supposed to only include the library RcppArmadilloLapack.h if
|         NOT
|         on Windows.  Somehow your configuration has undefined WIN32.
| 
|         We need to figure out why / who / where and correct it, and / or find a
|         better #ifdef here.
|        
|         Dirk
|        
|         --
|         Dirk Eddelbuettel | edd at debian.org | http://dirk.eddelbuettel.com
| 
| 
| 
| 

-- 
Dirk Eddelbuettel | edd at debian.org | http://dirk.eddelbuettel.com