[Rcpp-devel] Question about using Rcpp to integrate C++ code with Boost Graph Library

[Song, Won-min]

Hi Dirk, 

Thanks alot for your reply. Nevertheless, it doesn't seem I don't have `Rcmd COMPILE' running in my R. 
I do have other functions such as Rcmd INSTALL, build etc, but couldn't find 'COMPILE' from the Rcmd options in the help display. 

After you pointed out that I should have used -L/-I options in PKG_LIBS, I tried the following in Makevars.win file: 

PKG_LIBS = $(shell ${R_HOME}/bin/Rscript.exe -e "Rcpp:::LdFlags()" -L "C:/Users/Won/Documents/Boost/boost_1_51/lib" -lboost_graph)

and it still doesn't recognize boost library. 

As I am rather a beginner in R, it is likely that there is something missing. Could you or anyone direct me to right direction? 

Thanks,

Won 
________________________________________
From: Dirk Eddelbuettel [edd at debian.org]
Sent: Saturday, January 19, 2013 9:29 AM
To: Song, Won-min
Cc: rcpp-devel at lists.r-forge.r-project.org
Subject: Re: [Rcpp-devel] Question about using Rcpp to integrate C++ code with Boost Graph Library

Hi,

On 19 January 2013 at 08:14, Song, Won-min wrote:
|
| Hi,
| I am a new beginner in using Rcpp with C++.
| I have a piece of C++ code with Rcpp and boost graph library, and am trying to
| make a package with helps from Rcpp.package.skeleton() command.
|
| When I try to install the package with Rcmd INSTALL pkgname (I'm running on
| windows machine), it seems that it is not recognizing the boost library by
| displaying error messages that it is not recognizing the header files from
| boost. I used the following Makevars.win file in the src directory:
|
| PKG_LIBS = $(shell ${R_HOME}/bin/Rscript.exe -e "Rcpp:::LdFlags()")
| PKG_CPPFLAGS = -L "C:/Users/Won/Documents/Boost/boost_1_51/lib" -lboost_graph
|
| C:/Users/Won/Documents/Boost/boost_1_51/lib is the directory where the .dll
| files live.
| Would you be able to point me in the right direction? Is there something I've
| done wrong in Makevars.win file?

You added the _linker_ arguments to the _header_ flag. That is wrong: -L/-l
belong to PKG_LIBS.

Try in the src/ directory to decompose the steps into

    R CMD COMPILE mylib.dll *.cpp

and

    R CMD SHLIB mylib.dll

(or some other name for mylib) to see that you can a) compile (does g++ find
headers) and b) link (does g++ find the dll).

Dirk

|
| Any comments would be greatly appreciated.
|
| Thanks,
|
| ----------------------------------------------------------------------
| _______________________________________________
| Rcpp-devel mailing list
| Rcpp-devel at lists.r-forge.r-project.org
| https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
--
Dirk Eddelbuettel | edd at debian.org | http://dirk.eddelbuettel.com