threads-h tests: Avoid clang warnings.

* tests/test-threads.c (main): Add 'default' to switch statements.

1 files changed, 2 insertions, 0 deletions

diff --git a/tests/test-threads.c b/tests/test-threads.c
index 4570e19cda..d832ee72ae 100644
--- a/tests/test-threads.c
+++ b/tests/test-threads.c
@@ -46,6 +46,7 @@ main (void)
     case thrd_busy:
     case thrd_nomem:
     case thrd_error:
+    default:
       ;
     }
 
@@ -56,6 +57,7 @@ main (void)
     case mtx_timed:
     case mtx_plain | mtx_recursive:
     case mtx_timed | mtx_recursive:
+    default:
       ;
     }