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

[Matteo Fasiolo]

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?

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
>>
>
>
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