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cf: clang pretends to be GCC 4

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This commit is contained in:
Nicolas Williams
2026-01-05 19:05:23 -06:00
parent 09b77c4051
commit 75affc8f55
1 changed files with 6 additions and 9 deletions
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15
configure.ac
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@@ -547,16 +547,13 @@ dnl Deal with switch fallthrough warnings
AH_TOP([
#if defined(DISPATCH_FALLTHROUGH)
# define HEIM_FALLTHROUGH DISPATCH_FALLTHROUGH
#elif defined(__clang__)
/* Clang sets __GNUC__ to 4 for compat, but supports fallthrough attr */
# define HEIM_FALLTHROUGH __attribute__((fallthrough))
#elif defined(__GNUC__) && __GNUC__ >= 7
# define HEIM_FALLTHROUGH __attribute__((fallthrough))
#else
# if defined(__GNUC__)
# if __GNUC__ >= 7
# define HEIM_FALLTHROUGH __attribute__((fallthrough))
# else
# define HEIM_FALLTHROUGH do {} while (0) /* fallthrough */
# endif
# else
# define HEIM_FALLTHROUGH do {} while (0) /* fallthrough */
# endif
# define HEIM_FALLTHROUGH do {} while (0) /* fallthrough */
#endif
])