--- pwauth-2.3.11.orig/auth_sun.c
+++ pwauth-2.3.11/auth_sun.c
@@ -32,6 +32,9 @@
  */
 
 #include "pwauth.h"
+#if defined(CHECK_LOGIN_EXPIRATION) || defined(CHECK_PASSWORD_EXPIRATION)
+#include <time.h>
+#endif
 
 #ifdef SHADOW_SUN
 #ifdef NEED_UID
--- pwauth-2.3.11.orig/main.c
+++ pwauth-2.3.11/main.c
@@ -43,8 +43,9 @@
 int server_uids[]= {SERVER_UIDS, 0};
 #endif
 
+int check_auth(char *login, char *passwd);
 
-main(int argc, char **argv)
+void main(int argc, char **argv)
 {
 #ifdef ENV_METHOD
     char *login, *passwd;