[R-SIG-Mac] R CMD SHLIB produces make: *** No rule to make target "R.o", needed by "R.so"

[Simon Urbanek]

On Jul 9, 2011, at 2:51 PM, Chien Lin Terry Huang wrote:

> Hi there,
> 
> I have been trying to run some C code in R. After following various instructions on the internet still no avail.
> This is what I did:
> 
> In the R.c file, I have the following:
> 
> ==================================
> #include <R.h>
> #include <math.h>
> 
> void last_event_newton( double *time , double *beta0 , double *beta1 , double *rho , double *D , double *K , double *L , double *output )
> {
>    ...not very important code
> }
> ==================================
> 
> Then in the terminal (Snow Leopard), I typed:
> ~ User$ R CMD SHLIB R.c
> 
> This is the result:
> make: *** No rule to make target `R.o', needed by `R.so'.  Stop.
> 
> After googling, I can't find much documentation on this. If anyone can help me to figure this out that would be great.
> 

Make sure you have all necessary tools (Xcode). If that doesn't help, you'll need to be most specific -- exact version of R, where you got it, Xcode version (gcc --version), and full output (error alone is not very helpful..). As Berend said, what you posted works without problems, so it looks like some issue in your setup.

Cheers,
Simon