[Rcpp-devel] question re: LdFlags, RcppLdFlags

[Romain Francois]

Le 10/10/13 00:43, Dirk Eddelbuettel a écrit :
>
> On 9 October 2013 at 17:14, Dirk Eddelbuettel wrote:
> | The other immediate defensive way would be to use NAMESPACE etc on the client
> | package and not load Rcpp and Rcpp$foo but just importFrom() etc what is needed.
>
> An 'Imports:' and NAMESPACE entry appears to be all it takes.  RcppGSL also
> has its own LdFlags, but with the diff below against what is in svn head I am
> passing R CMD check without a hitch on R release and R devel.

RcppGSL does not export its LdFlags, if it did, you'd see the warning 
when you load it.

So we would use Rcpp::LdFlags and RcppGSL:::LdFlags. <nonsense/>



Why would you import Rcpp's LdFlags inside RcppGSL's namespace, you 
don't use it there.


> So for dplyrRcpp, if you just want to suppress the warning, simply alter your
> DESCRIPTION and NAMESPACE accordingly.

Does not cut it sorry.

> Dirk
>
>
> edd at max:~/svn/rcpp/pkg$ svn di RcppGSL
> Index: RcppGSL/DESCRIPTION
> ===================================================================
> --- RcppGSL/DESCRIPTION	(revision 4542)
> +++ RcppGSL/DESCRIPTION	(working copy)
> @@ -1,7 +1,7 @@
>   Package: RcppGSL
>   Type: Package
>   Title: Rcpp integration for GNU GSL vectors and matrices
> -Version: 0.2.0.2
> +Version: 0.2.0.3
>   Date: $Date$
>   Author: Romain Francois and Dirk Eddelbuettel
>   Maintainer: Dirk Eddelbuettel <edd at debian.org>
> @@ -27,8 +27,8 @@
>     write a similar package against another library.
>   License: GPL (>= 2)
>   LazyLoad: yes
> -Imports: Rcpp (>= 0.9.8)
>   Suggests: RUnit, inline, highlight
>   LinkingTo: Rcpp
> +Imports: Rcpp
>   SystemRequirements: GNU GSL
>   VignetteBuilder: highlight
> Index: RcppGSL/NAMESPACE
> ===================================================================
> --- RcppGSL/NAMESPACE	(revision 4542)
> +++ RcppGSL/NAMESPACE	(working copy)
> @@ -1,6 +1,7 @@
>   useDynLib(RcppGSL)
>
>   importFrom(utils,assignInNamespace)
> +importFrom(Rcpp,LdFlags)
>   export(fastLmPure,
>          fastLm)
>   S3method(fastLm, default)
> edd at max:~/svn/rcpp/pkg$
>
>
>


-- 
Romain Francois
Professional R Enthusiast
+33(0) 6 28 91 30 30