1 files changed, 1 insertions, 1 deletions
diff --git a/signal.c b/signal.c
index 265e1fbf84..7d3b424725 100644
--- a/signal.c
+++ b/signal.c
@@ -281,9 +281,9 @@ rb_gc_mark_trap_list()
 #endif /* MACOS_UNUSE_SIGNAL */
 }
 
-#ifdef POSIX_SIGNAL
 typedef RETSIGTYPE (*sighandler_t)_((int));
 
+#ifdef POSIX_SIGNAL
 static sighandler_t
 ruby_signal(signum, handler)
     int signum;