[Rcpp-devel] Re-using C++ code from a package with modules and defining linker flags using Rscript

[Dirk Eddelbuettel]

On 15 May 2011 at 17:22, Douglas Bates wrote:
| On May 15, 2011 5:17 PM, "Dirk Eddelbuettel" <edd at debian.org> wrote:
| > On 15 May 2011 at 21:42, Jelmer Ypma wrote:
| > | Is this the recommended way of adding linker and cxx flags to packages
| > | depending on other R packages with modules? I tried to look at
| >
| > We simply show no example of definiting object code in one package and having
| > other packages use it -- with the exception of the Rcpp package itself.  And
| > there it takes quite some effort to make this happen.
| >
| > You could look at what lme4 and Matrix do; this is documented in the 'Writing
| > R Extensions' manual under '[Section] 5.4 Registering native routines'.
| 
| Unfortunately that approach doesn't work with C++ classes and methods, which is
| one of the reasons that Rcpp linkage has to be done the way that it is.  The
| exporting of symbols a as done by Matrix is restricted to C function entry
| points.

Ah, yes, that aspect too. Meant to mention, thanks for catching it.

In short: no beans.  You may have to build one larger package.

Dirk

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