Re: unused var gcpro1

[Jason Rumney]

"Stefan Monnier" <monnier+gnu/address@hidden> writes:

> I got tired of those warnings and came up with the patch below.
> It shouldn't make any difference to the code generated (even
> with -O0 I can't think of any way the compiler could generate code
> for those non-actions).
> 
> But since it's a very minor issue, I'd like to know if people think
> it's safe enough.  If it's not 100% safe, it's probably not worth installing.

It looks safe, and the more unnecessary warnings we quieten, the more
likely we are to spot the real warnings.

> Also, it might cause other compilers to spit out other warnings,
> since it's a really silly kind of code.

I think Microsoft's C compiler is in this category when certain
optimizations are turned on, but don't let that stop you, it is only
swapping one warning for another.


-- 
Jason Rumney