1 files changed, 11 insertions, 0 deletions
diff --git a/signal.c b/signal.c
index 67990856ea..c9e6ffd52e 100644
--- a/signal.c
+++ b/signal.c
@@ -634,6 +634,17 @@ posix_signal(int signum, sighandler_t handler)
     return ruby_signal(signum, handler);
 }
 
+#elif defined _WIN32
+static inline sighandler_t
+ruby_signal(int signum, sighandler_t handler)
+{
+    if (signum == SIGKILL) {
+	errno = EINVAL;
+	return SIG_ERR;
+    }
+    return signal(signum, handler);
+}
+
 #else /* !POSIX_SIGNAL */
 #define ruby_signal(sig,handler) (/* rb_trap_accept_nativethreads[(sig)] = 0,*/ signal((sig),(handler)))
 #if 0 /* def HAVE_NATIVETHREAD */