meson.build: fix intel atomics detection

Use the stronger compiler.link() test (instead of the weaker
compiler.compile()) to fix the intel atomics detection.

Fixes false positive in case of sparc compile (buildroot toolchain).

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>

diff --git a/meson.build b/meson.build
index 677ff4f..96ee50c 100644 (file)
--- a/meson.build
+++ b/meson.build
@@ -52,9 +52,10 @@ intel_atomics = false
 lib_atomics = false
 
 dep_atomic_ops = dependency('atomic_ops', required : false)
-if cc.compiles('''
+if cc.links('''
     int atomic_add(int *i) { return __sync_add_and_fetch (i, 1); }
     int atomic_cmpxchg(int *i, int j, int k) { return __sync_val_compare_and_swap (i, j, k); }
+    int main() { }
     ''',
     name : 'Intel Atomics')
   intel_atomics = true