Avoid a gcc warning.

diff --git a/tests/test-alloca-opt.c b/tests/test-alloca-opt.c
index 33f85db..65bc19f 100644 (file)
--- a/tests/test-alloca-opt.c
+++ b/tests/test-alloca-opt.c
@@ -29,6 +29,7 @@ static void
 do_allocation (int n)
 {
   void *ptr = alloca (n);
+  (void) ptr;
 }
 
 void (*func) (int) = do_allocation;