diff --git a/configure.ac b/configure.ac
index 2c72cff..efece9c 100755
--- a/configure.ac
+++ b/configure.ac
@@ -422,7 +422,6 @@
 AC_TYPE_UID_T
 AC_TYPE_MODE_T
 AC_TYPE_SIZE_T
-AC_TYPE_SIGNAL
 AC_STRUCT_TM
 
 dnl -------------------------
diff --git a/vtysh/vtysh.c b/vtysh/vtysh.c
index d64b4e0..fbbc88d 100644
--- a/vtysh/vtysh.c
+++ b/vtysh/vtysh.c
@@ -1713,7 +1713,6 @@
        "Write to terminal\n")
 {
   u_int i;
-  int ret;
   char line[] = "write terminal\n";
   FILE *fp = NULL;
 
@@ -1735,7 +1734,7 @@
   vty_out (vty, "!%s", VTY_NEWLINE);
 
   for (i = 0; i < array_size(vtysh_client); i++)
-    ret = vtysh_client_config (&vtysh_client[i], line);
+    vtysh_client_config (&vtysh_client[i], line);
 
   /* Integrate vtysh specific configuration. */
   vtysh_config_write ();
@@ -1783,7 +1782,6 @@
 write_config_integrated(void)
 {
   u_int i;
-  int ret;
   char line[] = "write terminal\n";
   FILE *fp;
   char *integrate_sav = NULL;
@@ -1809,7 +1807,7 @@
     }
 
   for (i = 0; i < array_size(vtysh_client); i++)
-    ret = vtysh_client_config (&vtysh_client[i], line);
+    vtysh_client_config (&vtysh_client[i], line);
 
   vtysh_config_dump (fp);
 
@@ -1948,7 +1946,6 @@
 execute_command (const char *command, int argc, const char *arg1,
 		 const char *arg2)
 {
-  int ret;
   pid_t pid;
   int status;
 
@@ -1967,13 +1964,13 @@
       switch (argc)
 	{
 	case 0:
-	  ret = execlp (command, command, (const char *)NULL);
+	  execlp (command, command, (const char *)NULL);
 	  break;
 	case 1:
-	  ret = execlp (command, command, arg1, (const char *)NULL);
+	  execlp (command, command, arg1, (const char *)NULL);
 	  break;
 	case 2:
-	  ret = execlp (command, command, arg1, arg2, (const char *)NULL);
+	  execlp (command, command, arg1, arg2, (const char *)NULL);
 	  break;
 	}
 
@@ -1985,7 +1982,7 @@
     {
       /* This is parent. */
       execute_flag = 1;
-      ret = wait4 (pid, &status, 0, NULL);
+      wait4 (pid, &status, 0, NULL);
       execute_flag = 0;
     }
   return 0;
diff --git a/vtysh/vtysh_main.c b/vtysh/vtysh_main.c
index d243670..aa7d021 100644
--- a/vtysh/vtysh_main.c
+++ b/vtysh/vtysh_main.c
@@ -98,10 +98,9 @@
 
 /* Signale wrapper for vtysh. We don't use sigevent because
  * vtysh doesn't use threads. TODO */
-RETSIGTYPE *
+static void
 vtysh_signal_set (int signo, void (*func)(int))
 {
-  int ret;
   struct sigaction sig;
   struct sigaction osig;
 
@@ -112,12 +111,7 @@
   sig.sa_flags |= SA_RESTART;
 #endif /* SA_RESTART */
 
-  ret = sigaction (signo, &sig, &osig);
-
-  if (ret < 0) 
-    return (SIG_ERR);
-  else
-    return (osig.sa_handler);
+  sigaction (signo, &sig, &osig);
 }
 
 /* Initialization of signal handles. */