Re: Fixing the warning about warning(""); was: Re: [PATCH] difftool.c: mark a file-local symbol with static

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On Thu, Jan 26, 2017 at 07:39:55AM +0100, Johannes Sixt wrote:

> Am 25.01.2017 um 23:01 schrieb Jeff King:
> > +#pragma GCC diagnostic ignored "-Wformat-zero-length"
> 
> Last time I used #pragma GCC in a cross-platform project, it triggered an
> "unknown pragma" warning for MSVC. (It was the C++ compiler, I don't know if
> the C compiler would also warn.) It would have to be spelled like this:
> 
> #pragma warning(disable: 4068)   /* MSVC: unknown pragma */
> #pragma GCC diagnostic ignored "-Wformat-zero-length"
> 
> Dscho mentioned that he's compiling with MSVC. It would do him a favor.

Bleh. The point of #pragma is to ignore ones you don't know about.

It would be easy to wrap it in an #ifdef for __GNUC__ (there is already
a similar pragma with similar wrapping in the code base).

Anyway. I do not want to make life harder for anyone. I think there are
several options floating around now, so I will let Junio decide which
one he wants to pick up.

-Peff



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