Hi Simon, As far as I know CRAN provides all the libraries you listed except OpenCV ( http://cran.r-project.org/bin/windows/contrib/ThirdPartySoftware.html). If you intend to publish your package to CRAN and let CRAN build the Windows version, I suppose you can directly make use of those libraries. For OpenCV, you can write a script to download the headers and pre-compiled library in installation. An example is the configure.win file in Cairo package.
Of course, the suggestion above is for building a Windows package with full external dependency support. I have no good idea how to test the existence of libraries on Windows anyway. Best, Yixuan 2015-06-09 3:38 GMT-04:00 Simon Barthelmé <simon.barthe...@gipsa-lab.fr>: > Dear list, > > I've been working on an image processing package for R ( > https://github.com/dahtah/imager) that uses Rcpp to provide an interface > to the CImg library. > > Cimg is contained in just one header file, which makes it easy to ship > with an R package. It is relatively self-contained, but some functionality > requires external dependencies, such as libpng, libjpeg, libfftw3 and > opencv. These additional modules can be included at compile time via a > #define statement, but of course the right headers and libraries need to be > present. > > I'm trying to find a way to provide the additional functionality without > forcing the user to install these dependencies. On Linux/Mac a possible way > to do that would be to use autoconf, but from what I read Windows support > is going to be headache. Does anyone have advice on alternatives? Much > appreciated. > > Best > > Simon Barthelme > _______________________________________________ > Rcpp-devel mailing list > Rcpp-devel@lists.r-forge.r-project.org > https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel > -- Yixuan Qiu <yixuan....@cos.name> Department of Statistics, Purdue University
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