diff options
Diffstat (limited to 'src/corelib/global/qcompilerdetection.h')
| -rw-r--r-- | src/corelib/global/qcompilerdetection.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/corelib/global/qcompilerdetection.h b/src/corelib/global/qcompilerdetection.h index 15229e03a0..e547d58c2e 100644 --- a/src/corelib/global/qcompilerdetection.h +++ b/src/corelib/global/qcompilerdetection.h @@ -157,6 +157,10 @@ # define Q_CC_CLANG # define Q_ASSUME_IMPL(expr) if (expr){} else __builtin_unreachable() # define Q_UNREACHABLE_IMPL() __builtin_unreachable() +# if !defined(__has_extension) +# /* Compatibility with older Clang versions */ +# define __has_extension __has_feature +# endif # else /* Plain GCC */ # if (__GNUC__ * 100 + __GNUC_MINOR__) >= 405 @@ -179,6 +183,7 @@ # define Q_TYPEOF(expr) __typeof__(expr) # define Q_DECL_DEPRECATED __attribute__ ((__deprecated__)) # define Q_DECL_ALIGN(n) __attribute__((__aligned__(n))) +# define Q_DECL_UNUSED __attribute__((__unused__)) # define Q_LIKELY(expr) __builtin_expect(!!(expr), true) # define Q_UNLIKELY(expr) __builtin_expect(!!(expr), false) # define Q_NORETURN __attribute__((__noreturn__)) @@ -816,6 +821,9 @@ #ifndef Q_DECL_HIDDEN # define Q_DECL_HIDDEN #endif +#ifndef Q_DECL_UNUSED +# define Q_DECL_UNUSED +#endif #ifndef Q_FUNC_INFO # if defined(Q_OS_SOLARIS) || defined(Q_CC_XLC) # define Q_FUNC_INFO __FILE__ "(line number unavailable)" |