diff --git a/configure.ac b/configure.ac
index 0304789984..b871895547 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1254,17 +1254,17 @@ elif test "x$shmtype" = "xsysv"; then
 	  char *shmaddr;
 	id = shmget (IPC_PRIVATE, 4, IPC_CREAT | 0600);
 	if (id == -1)
-	  exit (2);
+	  return 2;
 	  shmaddr = shmat (id, 0, 0);
 	  shmctl (id, IPC_RMID, 0);
 	  if ((char*) shmat (id, 0, 0) == (char*) -1)
 	  {
 	    shmdt (shmaddr);
-	    exit (1);
+	    return 1;
 	  }
 	  shmdt (shmaddr);
 	  shmdt (shmaddr);
-	  exit (0);
+	  return 0;
 	}
       ]])],
       [AC_DEFINE([IPC_RMID_DEFERRED_RELEASE],[1],