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py/misc: Don't warn about a GNU extension for static assert macro.

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This warning was enabled by default on clang 17.0.0 on macOS 26.  Disable
it, because we want to make these checks at compile-time even if it
requires an extension.

Fixes issue #18116.

Signed-off-by: Jeff Epler <jepler@unpythonic.net>
This commit is contained in:
Jeff Epler
2025-09-27 19:29:49 -05:00
committed by Damien George
parent 099991f3ef
commit 33cf1ab3cc
1 changed files with 3 additions and 0 deletions
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3
py/misc.h
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@@ -83,6 +83,9 @@ typedef unsigned int uint;
#if defined(_MSC_VER) || defined(__cplusplus)
#define MP_STATIC_ASSERT_NONCONSTEXPR(cond) ((void)1)
#else
#if __clang__
#pragma GCC diagnostic ignored "-Wgnu-folding-constant"
#endif
#define MP_STATIC_ASSERT_NONCONSTEXPR(cond) ((void)sizeof(char[1 - 2 * !(cond)]))
#endif