[NFC] Properly suppress unused argument warning in __isOSVersionAtLeast()

Casting to non-void causes
  expression result unused [-Wunused-value]

diff --git a/compiler-rt/lib/builtins/os_version_check.c b/compiler-rt/lib/builtins/os_version_check.c
index d7194b9..ebfb2df 100644 (file)
--- a/compiler-rt/lib/builtins/os_version_check.c
+++ b/compiler-rt/lib/builtins/os_version_check.c
@@ -307,8 +307,8 @@ static void readSystemProperties(void) {
 }
 
 int32_t __isOSVersionAtLeast(int32_t Major, int32_t Minor, int32_t Subminor) {
-  (int32_t) Minor;
-  (int32_t) Subminor;
+  (void) Minor;
+  (void) Subminor;
   static pthread_once_t once = PTHREAD_ONCE_INIT;
   pthread_once(&once, readSystemProperties);