On 26/05/2020 09:20, Chris Green wrote:
[]
> If you are doing a straight compile (using gcc or g++) on your Pi to
> create an executable program for the Pi then I'd expect it to 'just
> work', no special compiler options or anything required.
>
> An "illegal instruction" error doesn't necessarily mean the compiler
> has generated an illegal instruction, it may just mean you have a bug
> in your program so that you are trying to execute something that isn't
> code.
>
> I'd certainly be looking for a bug in my proram before looking for
> esoteric compiler issues.  :-)

Thanks, Chris.  It's not the program, but the link option.  If I make a
"Hello World" program it fails when using the same link option (-lgps)
and not when that option is removed.  I've checked the library and it
appears to be OK - it's the one generated at the same time as I built
gpsd from gitlab.

The support programs like cgps and ubxtool were built at the same time
/presumably/ using the same library, but I'm now trying to find the link
options used to build those programs.

--
Cheers,
David
Web: http://www.satsignal.eu

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