[R-SIG-Mac] cblas on Mac and Linux

[Gad Abraham]

Hi,

I've got a package with some C code calling cblas functions (e.g., 
cblas_dgemm). The code is called using .C() . In order to compile 
correctly either cblas.h on Linux or Accelerate.h on a Mac:

#include <R.h>
#ifdef MACOSX
#include <Accelerate/Accelerate.h>
#else
#include <cblas.h>
#endif

Of course, this doesn't work well with the standard Makevars 
PKG_LIBS=$(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS) since I need to set the 
-DMACOSX flag for each platform.

Do I need to create another makefile to decide which OS the code is 
running on, or is there an easier way of doing this?

Thanks,
Gad

-- 
Gad Abraham
MEng Student, Dept. CSSE and NICTA
The University of Melbourne
Parkville 3010, Victoria, Australia
email: gabraham at csse.unimelb.edu.au
web: http://www.csse.unimelb.edu.au/~gabraham