Re: Including config.h emits warnings from -Wundef

[Tim Rühsen]

On 8/3/23 20:56, Jeffrey Walton wrote:
> My personal opinion is, there's nothing to fix.
>
> That is exactly how macros are supposed to work. Anything undefined
> evaluates to 0. It has been that way since the early days of C and
> C++.
>
> If there's a fix, then it is that you don't use -Wundef.

-Wundef helps to find typos if #ifdef constructs quickly.

Without it you easily end up debugging issues that the compiler could 
have caught at compile time. This actually happened to me in the past, 
I'd like to take this kind of issue out of the game once and for all :).

Regards, Tim

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