t4kcommon fails to build with GCC-15: C23 has bool/true/false as keywords

[NHOrus]

There exists bool guard in t4k_common.h, but such bool guard is insufficient and fails with C23.

t4kcommon/src/t4k_common.h

Lines 125 to 132 in f954f56

	#ifndef bool
	typedef enum
	{
	false,
	true
	}
	bool;
	#endif

Better to drop defining bools and use sysbool.h, or add guards for C23
See also:
https://bugs.gentoo.org/943953
gentoo/gentoo#40844

[Cheezmeister]

Thanks for the attention to detail, @NHOrus ; as you can see this code is 15 years old, so it is definitely time to bring it a few years up to date. stdbool.h is a C99 addition yes? I think we can safely assume it in target systems :)

[NHOrus]

Yes. stdbool.h is basically everywhere and does right thing, all the time.