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Hi Yixuan <br>
<br>
That's very interesting, I didn't know Cairo used that trick. I'll
look into it, many thanks! <br>
<br>
Simon<br>
<br>
<div class="moz-cite-prefix">Le 09/06/2015 10:28, Yixuan Qiu a
écrit :<br>
</div>
<blockquote
cite="mid:CAFr_7yGHPJg1xLM4G9VRisbfouKQJcgPXvOdorQhWR0-1t2JiA@mail.gmail.com"
type="cite">
<div dir="ltr">Hi Simon,
<div>As far as I know CRAN provides all the libraries you listed
except OpenCV (<a moz-do-not-send="true"
href="http://cran.r-project.org/bin/windows/contrib/ThirdPartySoftware.html">http://cran.r-project.org/bin/windows/contrib/ThirdPartySoftware.html</a>).
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.</div>
<div>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.</div>
<div><br>
</div>
<div>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.</div>
<div><br>
</div>
<div><br>
</div>
<div>Best,</div>
<div>Yixuan</div>
</div>
<div class="gmail_extra"><br>
<div class="gmail_quote">2015-06-09 3:38 GMT-04:00 Simon
Barthelmé <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:simon.barthelme@gipsa-lab.fr" target="_blank">simon.barthelme@gipsa-lab.fr</a>></span>:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Dear list,<br>
<br>
I've been working on an image processing package for R (<a
moz-do-not-send="true"
href="https://github.com/dahtah/imager" target="_blank">https://github.com/dahtah/imager</a>)
that uses Rcpp to provide an interface to the CImg library.<br>
<br>
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.<br>
<br>
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.<br>
<br>
Best<br>
<br>
Simon Barthelme<br>
_______________________________________________<br>
Rcpp-devel mailing list<br>
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href="mailto:Rcpp-devel@lists.r-forge.r-project.org"
target="_blank">Rcpp-devel@lists.r-forge.r-project.org</a><br>
<a moz-do-not-send="true"
href="https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel"
target="_blank">https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel</a><br>
</blockquote>
</div>
<br>
<br clear="all">
<div><br>
</div>
-- <br>
<div class="gmail_signature">Yixuan Qiu <<a
moz-do-not-send="true" href="mailto:yixuan.qiu@cos.name"
target="_blank">yixuan.qiu@cos.name</a>><br>
Department of Statistics,<br>
Purdue University<br>
</div>
</div>
</blockquote>
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