[vsipl++] [patch] argument processing header dependency

[Stefan Seefeld]

Don McCoy wrote:
> The attached patch checks for the presence of the required header before 
> using it in tests/fft_ext/fft_ext.cpp.  If not present, then it defaults 
> to accepting a file name only.

Don,

since we do need to make this work without argp.h at least on those
systems that don't have that header, why not make it work without it
uniformly ? Each branch point requires additional logic to test that
each branch works correctly, and configure.ac gets longer with each
additional test.

In my opinion, if we can avoid argp.h (in particular as it is totally
orthogonal to the domain we serve), we should.

Regards,
		Stefan