header files missing - building application

[pathfinder11]

Hi there at gputools. I am trying to rebuild the gputools package so that I can run on a Windows platform. A number of the source files refer to a header file R.h (as I believe is standard practice for writing an interface function between R and C code). The source tar ball from the CRAN site does not include the R.h file and so I am unable to build the application in Visual Studio. Is there a reason that this file no longer exists in the collection of source files?
Additionally in the gpuHclust.R wrapper file there are calls to three C functions Rdistances, Rhcluster and Rdistclust. However these C files also don't appear in the tar ball.
Is it possible to make available a complete collection of source files so that the application can be built from scratch and a package for R running on Windows created?

[dselivanov]

R.h located at $(R_HOME)/include. How you trying to build it in Visual Studio? R uses toolchain based on gcc and mingw...