Re: Circular dependency dropped warning from make in relating to CUDA code

[Adam Mercer]

On Sat, Jun 27, 2009 at 05:33, Ralf Wildenhues<address@hidden> wrote:

Ralf

> Why not name the product file CudaChisq.c rather than CudaChisq.cu.c?
> The problem here is that the other half of the circle comes from the
> make-internal rule `%: %.c' for compiling single-source programs.
> I guess you can also avoid it with `make -r', but that may have other,
> unwanted consequences.
>
> (Note also that using $< in target rules is not portable to non-GNU
> make).

Is there a more portable version?

> Here's what I would do:
>
> NVCC = nvcc
> NVCFLAGS = -cuda --host-compilation=c
> SUFFIXES = .cu .c
> .cu.c:
>        $(NVCC) $(NVCFLAGS) $(INCLUDES) $(CPPFLAGS) --output-file $@ $<
>
> and then list *.cu files in automake *_SOURCES variables instead of the
> *.c files.  You can list *.c files in EXTRA_DIST if you want to have
> them distributed (which implies that the output of nvcc should be
> portable, which I don't know whether it is the case).
>
> Hope that helps.

Thanks, that's got rid of the warning!

Cheers

Adam