diff --git a/usr.bin/login/login.h b/usr.bin/login/login.h
index 9d1b921dac6a..48ef31bb5920 100644
--- a/usr.bin/login/login.h
+++ b/usr.bin/login/login.h
@@ -29,7 +29,8 @@ void	login_fbtab(char *, uid_t, gid_t);
 
 #ifdef USE_BSM_AUDIT
 void	au_login_success(void);
-void	au_login_fail(char *errmsg, int na);
+void	au_login_fail(const char *errmsg, int na);
+void	audit_logout(void);
 #endif
 
 extern char		**environ;
diff --git a/usr.bin/login/login_audit.c b/usr.bin/login/login_audit.c
index 0e0e09151290..a50a15893cf9 100644
--- a/usr.bin/login/login_audit.c
+++ b/usr.bin/login/login_audit.c
@@ -43,6 +43,8 @@ __FBSDID("$FreeBSD$");
 #include <errno.h>
 #include <pwd.h>
 #include <stdio.h>
+#include <strings.h>
+#include <unistd.h>
 
 #include "login.h"
 
@@ -109,7 +111,7 @@ au_login_success(void)
  * login attempts: header, subject, text, return.
  */
 void
-au_login_fail(char *errmsg, int na)
+au_login_fail(const char *errmsg, int na)
 {
 	token_t *tok;
 	int aufd;
@@ -170,8 +172,6 @@ audit_logout(void)
 {
 	token_t *tok;
 	int aufd;
-	au_mask_t aumask;
-	auditinfo_t auinfo;
 	uid_t uid = pwd->pw_uid;
 	gid_t gid = pwd->pw_gid;
 	pid_t pid = getpid();
diff --git a/usr.bin/login/login_fbtab.c b/usr.bin/login/login_fbtab.c
index c0a4290a4677..684cf6131696 100644
--- a/usr.bin/login/login_fbtab.c
+++ b/usr.bin/login/login_fbtab.c
@@ -133,7 +133,7 @@ gid_t gid;
 {
     glob_t  gl;
     char   *path;
-    int     i;
+    unsigned int     i;
 
     if (glob(pattern, GLOB_NOSORT, NULL, &gl) != 0)
 	return;