Re: [Rd] Building R package with precompiled shared library

From: Uwe Ligges <>
Date: Wed, 14 Sep 2011 16:16:17 +0200

On 14.09.2011 15:52, Paul Gilbert wrote:
> My understanding is that this cannot be done, for both licence and security reasons. The package build expects source code and removes binaries. You can link with binaries that are provided separately from the package, possibly coming from a vendor that sells non-open source code, but you cannot include them in the package.

Actually, you can include them, but then the package won't be accepted on CRAN, for example.

Let me cite Writing R Extensions:

"Note that CRAN does not accept submissions of precompiled binaries due to security concerns, and does not allow binary executables in packages. Maintainers who need additional software for the Windows binaries of their packages on CRAN have three options

  1. To arrange for installation of the package to download the additional software from a URL, as e.g. package Cairo does.
  2. To negotiate with Uwe Ligges to host the additional components on WinBuilder, and write a ‘’ file to install them. There are many examples, e.g. package rgdal."

So in case you do not want to move it to CRAN, you can simply use the same tricks that rgdal uses for Windows binaries on CRAN.

Uwe Ligges

> Paul
>> -----Original Message-----
>> From: [mailto:r-devel-bounces_at_r-
>>] On Behalf Of Francesco Finazzi
>> Sent: September 14, 2011 3:41 AM
>> To:
>> Subject: [Rd] Building R package with precompiled shared library
>> Dear R users,
>> we are trying to build a R package that includes a precompiled shared
>> library, let's say We created the skeleton of the package
>> and we moved the file into the libs folder that we created at
>> the same level of the folders man and R. Moreover we created the file
>> NAMESPACE and we added the line useDynLib(mylib, .registration=TRUE).
>> The building step seems to work correctly but when we try to install
>> the package we get
>> ** testing if installed package can be loaded
>> Error in library.dynam(lib, package, package.lib) :
>> shared library 'mylib' not found
>> we cannot understand what's wrong and where R searches for the
>> files.
>> Any suggestion?
>> Thanks,
>> Michela and Francesco
>> ______________________________________________
>> mailing list
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