[Rcpp-devel] R CMD check not happy about -std=c++0x

[Romain Francois]

This was almost working, except it was not working at all. But this does:

CLINK_CPPFLAGS=$(shell Rscript -e "Rcpp:::Cxx0xFlags()" )

Romain

On 01/18/2010 01:43 PM, Romain Francois wrote:
> Hello,
>
> With a lot of hard work this weekend, we finally found a decent
> workaround, using the CXXOPTS variable as follows:
>
> PKG_CPPFLAGS=$(shell Rscript -e "Rcpp:::CxxFlags()" )
> PKG_LIBS = $(shell Rscript -e "Rcpp:::LdFlags()" )
> CXXOPTS = $(shell Rscript -e "Rcpp:::Cxx0xFlags()" )
>
> where Rcpp:::Cxx0xFlags will be available in the next version (already
> in the development version)
>
> - Rcpp:::CxxFlags() will no longer include "-std=c++0x" because this is
> forbidden by R.
> - Rcpp:::Cxx0xFlags() checks which compiler is in use, and iif this is
> GCC>= 4.3 it adds "-std=c++0x"
>
> This makes both R CMD check and us happy.
>
> Romain
>
> On 01/15/2010 08:27 AM, Romain François wrote:
>> Hi,
>>
>> I'm getting a warning when I try to build my CPP package that depends on
>> Rcpp and uses the classic Makevars :
>>
>> PKG_CXXFLAGS=`Rcpp:::CxxFlags()` -I.
>> PKG_LIBS=`Rcpp:::LdFlags()`
>>
>>
>> I get this warning from R CMD check :
>>
>> * checking for portable compilation flags in Makevars ... WARNING
>> Non-portable flags in variable 'PKG_CXXFLAGS':
>>      -std=c++0x
>>
>>
>> Is there a workaround ? We probably would then have to update the new
>> skeleton generator to use it.
>>
>> Romain
>>
>
>


-- 
Romain Francois
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