diff options
Diffstat (limited to 'meson.build')
| -rw-r--r-- | meson.build | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/meson.build b/meson.build index 375751bce10..22e7a6d6cda 100644 --- a/meson.build +++ b/meson.build @@ -835,7 +835,9 @@ if cc.compiles('''#include <stdint.h> struct { uint64_t *v; } x; - return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE); + return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) & + (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL); + }''', name : 'GCC atomic builtins') pre_args += '-DUSE_GCC_ATOMIC_BUILTINS' @@ -851,7 +853,8 @@ if cc.compiles('''#include <stdint.h> struct { uint64_t *v; } x; - return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE); + return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE) & + (int)__atomic_add_fetch(x.v, (uint64_t)1, __ATOMIC_ACQ_REL); }''', name : 'GCC atomic builtins required -latomic') dep_atomic = cc.find_library('atomic') |