progs/xdemos: Add assert in corender.c.

(cherry picked from commit 66a4ec14c38d407256545e0cf31c98974d621fe4)

diff --git a/progs/xdemos/corender.c b/progs/xdemos/corender.c
index f2b8145e52b4ac297e32d1f41bf9d50ed8f282bc..1b18d9f54e7bfea4ae875f289b0b7aeab235aee9 100644 (file)
--- a/progs/xdemos/corender.c
+++ b/progs/xdemos/corender.c
@@ -55,6 +55,7 @@ setup_ipc(void)
 
       printf("Waiting for connection from another 'corender'\n");
       Sock = AcceptConnection(k);
+      assert(Sock != -1);
 
       printf("Got connection, sending windowID\n");