[Rcpp-devel] Specify include path with Rcpp.plugin.maker

[Vaclav Petras]

On 18 July 2012 18:33, Dirk Eddelbuettel <edd at debian.org> wrote:
>
> On 18 July 2012 at 18:21, Vaclav Petras wrote:
> | I used it just as an minimal working example. I'm sorry for confusion.
> |
> | I need it for _truly new libraries_ and same would apply also for my
> | own library if i have some.
> |
> | As I see I didn't include to my previous email explicit sentence
> | stating that I need really custom include path. So here it is.
>
> As I said, you probably want autoconf / configure to automate the search for
> headers and resulting configuration.
>
Yes, if I will do something more (and real) I will need some configure
for sure. But still, if it is possible to set flags for linking (-L
and -Wl,-rpath), for me it makes sense that some straightforward way
how to set include paths (-I) and additional compiler options should
exists. In another words, I would expect that Rcpp.plugin.maker will
have not only 'libs' parameter but also 'include.path' and 'flags'
parameters.

> What is your use case?

My use case is calling GRASS library functions from R [1]. I didn't
started yet and so far it is not clear what to do. I'm just exploring
the possibilities now. As a developer I don't have GRASS in standard
path and I want to do some ad-hoc tests and for them Rcpp.plugin.maker
is ideal solution. But I think that this approach can be used by
regular (power) users to write some one-purpose R script (with
Rcpp+inside).

> Are you sure you don't want to build a package?  In
> that case you'd modify src/Makevars and would not need the plugin which is
> just used for smaller-scale use via inline.
>
As you can see, I'm not sure what to do. However, building a package
is highly probable. But I got the impression that some plugin for
inline package have to be the part of a package if I want to enable to
write custom functions which use some library other than standard C++
lib.

[1] http://lists.osgeo.org/pipermail/grass-stats/2012-July/001422.html