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lib: NOTMUCH_DEPRECATED macro also for older compilers

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Some compilers (older than gcc 4.5 and clang 2.9) do support
__attribute__ ((deprecated)) but not
__attribute__ ((deprecated("message"))).

Check if clang version is at least 3.0, or gcc version
is at least 4.5 to define NOTMUCH_DEPRECATED as the
latter variant above. Otherwise define NOTMUCH_DEPRECATED
as the former variant above.

For a bit simpler implementation clang 2.9 is not included
to use the newer variant. It is just one release, and the
older one works fine. Clang 3.0 was released around 2011-11
and gcc 5.1 2015-04-22 (therefore newer macro for gcc 4.5+)
This commit is contained in:
Tomi Ollila 2016-03-01 21:30:07 +02:00 committed by David Bremner
parent b8a136187a
commit 342910a280
1 changed files with 9 additions and 0 deletions
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9
lib/notmuch.h
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@ -59,8 +59,17 @@ NOTMUCH_BEGIN_DECLS
#define LIBNOTMUCH_MINOR_VERSION 3
#define LIBNOTMUCH_MICRO_VERSION 0
#if defined (__clang_major__) && __clang_major__ >= 3 \
|| defined (__GNUC__) && __GNUC__ >= 5 \
|| defined (__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ >= 5
#define NOTMUCH_DEPRECATED(major,minor) \
__attribute__ ((deprecated ("function deprecated as of libnotmuch " #major "." #minor)))
#else
#define NOTMUCH_DEPRECATED(major,minor) __attribute__ ((deprecated))
#endif
#endif /* __DOXYGEN__ */
/**