[PATCH 1/2] core: Support clang with OSME_DEPRECATED

Separate feature checking from implementation. Supported are clang and gcc. --- include/osmocom/core/defs.h | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/include/osmocom/core/defs.h b/include/osmocom/core/defs.h index e3afbff..917a8c3 100644 --- a/include/osmocom/core/defs.h +++ b/include/osmocom/core/defs.h @@ -26,14 +26,25 @@ /*! \brief Set the deprecated attribute with a message. */ -#if ! defined(__GNUC__) -# define OSMO_DEPRECATED(text) -#elif OSMO_GNUC_PREREQ(4,5) +#if defined(__clang__) +# define _OSMO_HAS_ATTRIBUTE_DEPRECATED __has_attribute(deprecated) +# define _OSMO_HAS_ATTRIBUTE_DEPRECATED_WITH_MESSAGE __has_extension(attribute_deprecated_with_message) +#elif defined(__GNUC__) +# define _OSMO_HAS_ATTRIBUTE_DEPRECATED 1 +# define _OSMO_HAS_ATTRIBUTE_DEPRECATED_WITH_MESSAGE OSMO_GNUC_PREREQ(4,5) +#endif + +#if defined(_OSMO_HAS_ATTRIBUTE_DEPRECATED_WITH_MESSAGE) # define OSMO_DEPRECATED(text) __attribute__((__deprecated__(text))) -#else +#elif defined(_OSMO_HAS_ATTRIBUTE_DEPRECATED) # define OSMO_DEPRECATED(text) __attribute__((__deprecated__)) +#else +# define OSMO_DEPRECATED(text) #endif +#undef _OSMO_HAS_ATTRIBUTE_DEPRECATED_WITH_MESSAGE +#undef _OSMO_HAS_ATTRIBUTE_DEPRECATED + /*! @} */ #endif -- 1.7.9.5