diff options
Diffstat (limited to 'src/nvim/macros.h')
| -rw-r--r-- | src/nvim/macros.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/nvim/macros.h b/src/nvim/macros.h index 214af82422..9ab6dc5d2b 100644 --- a/src/nvim/macros.h +++ b/src/nvim/macros.h @@ -153,4 +153,22 @@ #define STR_(x) #x #define STR(x) STR_(x) +#ifndef __has_attribute +# define NVIM_HAS_ATTRIBUTE(x) 0 +#elif defined(__clang__) && __clang__ == 1 \ + && (__clang_major__ < 3 || (__clang_major__ == 3 && __clang_minor__ <= 5)) +// Starting in Clang 3.6, __has_attribute was fixed to only report true for +// GNU-style attributes. Prior to that, it reported true if _any_ backend +// supported the attribute. +# define NVIM_HAS_ATTRIBUTE(x) 0 +#else +# define NVIM_HAS_ATTRIBUTE __has_attribute +#endif + +#if NVIM_HAS_ATTRIBUTE(fallthrough) +# define FALLTHROUGH __attribute__((fallthrough)) +#else +# define FALLTHROUGH +#endif + #endif // NVIM_MACROS_H |