--- rxvt-unicode/src/iom.C	2004/12/11 17:18:29	1.24
+++ rxvt-unicode/src/iom.C	2004/12/15 02:53:49	1.25
@@ -125,8 +125,8 @@
         abort ();
       }
 
-    fcntl (sigpipe[0], F_SETFL, O_NONBLOCK);
-    fcntl (sigpipe[1], F_SETFL, O_NONBLOCK);
+    fcntl (sigpipe[0], F_SETFL, O_NONBLOCK); fcntl (sigpipe[0], F_SETFD, FD_CLOEXEC);
+    fcntl (sigpipe[1], F_SETFL, O_NONBLOCK); fcntl (sigpipe[1], F_SETFD, FD_CLOEXEC);
 #endif
 
     iom_valid = true;