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meson: Fix -latomic check

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Commit 54ba73ef10 (configure.ac/meson.build: Fix -latomic test) fixed
some checks for -latomic, and then commit 54bbe600ec (configure.ac:
rework -latomic check) further extended the fixes in configure.ac but
not in Meson. This commit extends those fixes to the Meson tests.

Fixes: 54bbe600ec (configure.ac: rework -latomic check)
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
This commit is contained in:
Matt Turner 2018-06-11 14:56:26 -07:00
parent 9cc577761f
commit b29b5a82a1
1 changed files with 7 additions and 1 deletions
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8
meson.build
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@ -830,7 +830,13 @@ endif
# Check for GCC style atomics
dep_atomic = null_dep
if cc.compiles('int main() { int n; return __atomic_load_n(&n, __ATOMIC_ACQUIRE); }',
if cc.compiles('''#include <stdint.h>
int main() {
struct {
uint64_t *v;
} x;
return (int)__atomic_load_n(x.v, __ATOMIC_ACQUIRE);
}''',
name : 'GCC atomic builtins')
pre_args += '-DUSE_GCC_ATOMIC_BUILTINS'