[Rcpp-devel] C++11 in Windows R package
matteo.fasiolo at gmail.com
Thu May 29 17:54:51 CEST 2014
it's nice to see that the #undefs WIN32 didn't come out of nowhere!
On Thu, May 29, 2014 at 4:45 PM, John Buonagurio <jbuonagurio at exponent.com>
> Dirk and Matteo,
> This is a MinGW issue, which as far as I can tell is undocumented.
> When CXX_STD=CXX11 is added to Makevars.win, R ultimately translates this
> to "-std=c++0x" in the g++ command (via CXX1XSTD in Makeconf). For some
> reason, MinGW then #undefs WIN32. This doesn't happen using use
> You can work around this by checking for _WIN32 instead of WIN32, or just
> add another define:
> #ifdef _WIN32
> #define WIN32
> But, as you saw even with this fixed, Armadillo still has issues with the
> Rtools GCC...
> | -----Original Message-----
> | From: rcpp-devel-bounces at lists.r-forge.r-project.org [mailto:rcpp-devel-
> | bounces at lists.r-forge.r-project.org] On Behalf Of Dirk Eddelbuettel
> | Sent: Thursday, May 29, 2014 9:32 AM
> | To: Matteo Fasiolo
> | Cc: rcpp-devel at lists.r-forge.r-project.org
> | Subject: Re: [Rcpp-devel] C++11 in Windows R package
> | On 29 May 2014 at 14:27, Matteo Fasiolo wrote:
> | | hopefully this is what you meant: I have searched the sources of
> | | RcppArmadillo, Rcpp and R-3.1.0 for the string "#undef WIN32", but I
> | | didn't find anything.
> | |
> | | I used for example: grep -rnw 'RcppArmadillo' -e '#undef WIN32'
> | I was just on the commuter train, did the same and didn't see it either.
> | But here is another idea: add -DWIN32 in src/Makevars.win. Maybe
> | definition "survives" and you end up in the right branch.
> | Dirk
> | --
> | Dirk Eddelbuettel | edd at debian.org | http://dirk.eddelbuettel.com
> | _______________________________________________
> | Rcpp-devel mailing list
> | Rcpp-devel at lists.r-forge.r-project.org
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