1 files changed, 3 insertions, 3 deletions
diff --git a/process.c b/process.c
index 02d82940c4..c41924dbbf 100644
--- a/process.c
+++ b/process.c
@@ -1409,12 +1409,12 @@ rb_syswait(pid)
 {
     static int overriding;
 #ifdef SIGHUP
-    RETSIGTYPE (*hfunc)_((int));
+    RETSIGTYPE (*hfunc)_((int)) = 0;
 #endif
 #ifdef SIGQUIT
-    RETSIGTYPE (*qfunc)_((int));
+    RETSIGTYPE (*qfunc)_((int)) = 0;
 #endif
-    RETSIGTYPE (*ifunc)_((int));
+    RETSIGTYPE (*ifunc)_((int)) = 0;
     int status;
     int i, hooked = Qfalse;