| Jacob Erlbeck | 6b26218 | 2013-08-14 12:26:27 +0200 | [diff] [blame^] | 1 | #ifndef OSMOCORE_DEFS_H |
| 2 | #define OSMOCORE_DEFS_H |
| 3 | |
| 4 | /*! \defgroup utils General-purpose utility functions |
| 5 | * @{ |
| 6 | */ |
| 7 | |
| 8 | /*! \file defs.h |
| 9 | * \brief General definitions that are meant to be included from header files. |
| 10 | */ |
| 11 | |
| 12 | /*! \brief Check for gcc and version. |
| 13 | * |
| 14 | * \note Albeit glibc provides a features.h file that contains a similar |
| 15 | * definition (__GNUC_PREREQ), this definition has been copied from there |
| 16 | * to have it available with other libraries, too. |
| 17 | * |
| 18 | * \return != 0 iff gcc is used and it's version is at least maj.min. |
| 19 | */ |
| 20 | #if defined __GNUC__ && defined __GNUC_MINOR__ |
| 21 | # define OSMO_GNUC_PREREQ(maj, min) \ |
| 22 | ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min)) |
| 23 | #else |
| 24 | # define OSMO_GNUC_PREREQ(maj, min) 0 |
| 25 | #endif |
| 26 | |
| 27 | /*! \brief Set the deprecated attribute with a message. |
| 28 | */ |
| 29 | #if ! defined(__GNUC__) |
| 30 | # define OSMO_DEPRECATED(text) |
| 31 | #elif OSMO_GNUC_PREREQ(4,5) |
| 32 | # define OSMO_DEPRECATED(text) __attribute__((__deprecated__(text))) |
| 33 | #else |
| 34 | # define OSMO_DEPRECATED(text) __attribute__((__deprecated__)) |
| 35 | #endif |
| 36 | |
| 37 | /*! @} */ |
| 38 | |
| 39 | #endif |