1 files changed, 4 insertions, 0 deletions
diff --git a/process.c b/process.c
index ecf660dddd..0113dc71da 100644
--- a/process.c
+++ b/process.c
@@ -1315,6 +1315,10 @@ rb_f_exit_bang(argc, argv, obj)
     return Qnil;		/* not reached */
 }
 
+#if defined(sun)
+#define signal(a,b) sigset(a,b)
+#endif
+
 void
 rb_syswait(pid)
     int pid;