diff options
| author | alexfanqi <alex.fan.q@gmail.com> | 2021-12-17 21:23:32 +1100 |
|---|---|---|
| committer | Daniel Black <daniel@mariadb.org> | 2021-12-30 16:20:29 +1100 |
| commit | 5fd5e9fff3ad2b1c8939c758cd2513c39016953e (patch) | |
| tree | 50f1950b6a2f5c757fbac4944452a6a6520c4dc1 /configure.cmake | |
| parent | 97695675c5db88eb7f2e0249dd693f070de16f06 (diff) | |
| download | mariadb-git-5fd5e9fff3ad2b1c8939c758cd2513c39016953e.tar.gz | |
improve checks for libatomic linking
This code piece is adapted from https://github.com/KDE/krita/blob/451e1415fd1b3a0f9c24de2fd4707d1b1e164236/cmake/modules/CheckAtomic.cmake#L23
Fixes: f502ccbcb5dfce29067434885a23db8d1bd5f134
Fixes: https://bugs.gentoo.org/828065
Tested-by: Yixun Lan <dlan@gentoo.org>
Reviewed-by: Daniel Black
Diffstat (limited to 'configure.cmake')
| -rw-r--r-- | configure.cmake | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/configure.cmake b/configure.cmake index db8742bb93b..cbcdab5e4f9 100644 --- a/configure.cmake +++ b/configure.cmake @@ -891,9 +891,16 @@ HAVE_GCC_ATOMIC_BUILTINS) CHECK_CXX_SOURCE_COMPILES(" int main() { - long long int var= 1; - long long int *ptr= &var; - return (int)__atomic_load_n(ptr, __ATOMIC_SEQ_CST); + char x=1; + short y=1; + int z=1; + long w = 1; + long long s = 1; + x = __atomic_add_fetch(&x, 1, __ATOMIC_SEQ_CST); + y = __atomic_add_fetch(&y, 1, __ATOMIC_SEQ_CST); + z = __atomic_add_fetch(&z, 1, __ATOMIC_SEQ_CST); + w = __atomic_add_fetch(&w, 1, __ATOMIC_SEQ_CST); + return (int)__atomic_load_n(&s, __ATOMIC_SEQ_CST); }" HAVE_GCC_C11_ATOMICS_WITHOUT_LIBATOMIC) IF (HAVE_GCC_C11_ATOMICS_WITHOUT_LIBATOMIC) @@ -904,9 +911,16 @@ ELSE() CHECK_CXX_SOURCE_COMPILES(" int main() { - long long int var= 1; - long long int *ptr= &var; - return (int)__atomic_load_n(ptr, __ATOMIC_SEQ_CST); + char x=1; + short y=1; + int z=1; + long w = 1; + long long s = 1; + x = __atomic_add_fetch(&x, 1, __ATOMIC_SEQ_CST); + y = __atomic_add_fetch(&y, 1, __ATOMIC_SEQ_CST); + z = __atomic_add_fetch(&z, 1, __ATOMIC_SEQ_CST); + w = __atomic_add_fetch(&w, 1, __ATOMIC_SEQ_CST); + return (int)__atomic_load_n(&s, __ATOMIC_SEQ_CST); }" HAVE_GCC_C11_ATOMICS_WITH_LIBATOMIC) IF(HAVE_GCC_C11_ATOMICS_WITH_LIBATOMIC) |