[Mesa-dev] [PATCH 1/3] meson: Fix -latomic check

[Matt Turner]

Commit 54ba73ef102f (configure.ac/meson.build: Fix -latomic test) fixed
some checks for -latomic, and then commit 54bbe600ec26 (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: 54bbe600ec26 (configure.ac: rework -latomic check)
---
 meson.build | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index 7dba52369b0..62200476216 100644
--- a/meson.build
+++ b/meson.build
@@ -836,7 +836,13 @@ 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'
 
-- 
2.16.1