[Rd] Making rmath.dll (or equivalent)

Prof Brian Ripley ripley at stats.ox.ac.uk
Tue Aug 9 06:50:37 CEST 2011

It is Rmath.dll: case often matters in searching.

You should look in the obvious manual in your (old) installation, the 
'R Installation and Administration' manual.  The current version is at


On Mon, 8 Aug 2011, sgomori wrote:

> I currently have R 2.12.1 installed, both 32 and 64 bit. I also have a file
> that was passed to me named rmath.dll. I do not know what version of R it
> was created from, but I do know it is 32-bit only. I am developing an
> application in C# that uses this library as a reference but I have to
> downgrade it to 32-bit in order to use the DLL file.
> I wish to make a rmath.dll from the version of R I have on my computer. I
> have looked for instructions online for this, but all I can find reference
> folders/files not in my install, I am guessing these instructions are for
> older versions of R.

If you have a binary install, you cannot build R from it.

> Can anyone point me to how I can accomplish this, creating a 64-bit DLL for
> R's math functonality?
> Thanks in advance.
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Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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