[PATCH v0 0/2] Add C23 stdbit.h functions

[Howland, Craig D. - US]

________________________________
From: Joel Sherrill <joel@rtems.org>
Sent: Friday, March 13, 2026 1:03 PM
To: newlib@sourceware.org <newlib@sourceware.org>
Cc: Joel Sherrill <joel@rtems.org>
Subject: [PATCH v0 0/2] Add C23 stdbit.h functions

>This patch series is a draft and feedback is appreciated on what
>is required to run "autoreconf" to get build infrastructure that
>does not give an error. See
>https://sourceware.org/pipermail/newlib/2026/022334.html<https://sourceware.org/pipermail/newlib/2026/022334.html> for
>details on the make error.
>
>Once this builds, I can foresee at least one more problem.
>The header file stdbit.h does not have C23 guards and neither
>do any of the implementation files. If these function files
>are to be compiled by an older compiler without C23 support,
>they should be disabled. At this point, I see adding a C23
>guard to stdbit.c and stdbit/*.c files.
>
>But the first problem is getting it to build at all.
>
>Help appreciated.
>
> Joel Sherrill (2):
Joel:
One question:  what about checks for the underlying __builtin* functions called?  I know (newer) GCC has them, but do all the supported compilers?  (In the latter case, perhaps the to-be-added C23 check would implicitly handle that?)
(Sorry, no ideas on the make problem.)
Craig

________________________________

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