diff --git a/checkpolicy/checkpolicy.c b/checkpolicy/checkpolicy.c
index 0d9c4ea1..7699619f 100644
--- a/checkpolicy/checkpolicy.c
+++ b/checkpolicy/checkpolicy.c
@@ -361,7 +361,7 @@ int change_bool(char *name, int state)
 	return 0;
 }
 
-static int check_level(hashtab_key_t key, hashtab_datum_t datum, void *arg)
+static int check_level(hashtab_key_t key, hashtab_datum_t datum, void *arg __attribute__ ((unused)))
 {
 	level_datum_t *levdatum = (level_datum_t *) datum;
 
diff --git a/checkpolicy/module_compiler.c b/checkpolicy/module_compiler.c
index 463d0421..d7f27f53 100644
--- a/checkpolicy/module_compiler.c
+++ b/checkpolicy/module_compiler.c
@@ -1446,7 +1446,7 @@ int begin_optional(int pass)
 	return -1;
 }
 
-int end_optional(int pass)
+int end_optional(int pass __attribute__ ((unused)))
 {
 	/* once nested conditionals are allowed, do the stack unfolding here */
 	pop_stack();
diff --git a/checkpolicy/policy_define.c b/checkpolicy/policy_define.c
index 675ca8ce..683eb0f6 100644
--- a/checkpolicy/policy_define.c
+++ b/checkpolicy/policy_define.c
@@ -995,7 +995,7 @@ int define_category(void)
 	return -1;
 }
 
-static int clone_level(hashtab_key_t key, hashtab_datum_t datum, void *arg)
+static int clone_level(hashtab_key_t key __attribute__ ((unused)), hashtab_datum_t datum, void *arg)
 {
 	level_datum_t *levdatum = (level_datum_t *) datum;
 	mls_level_t *level = (mls_level_t *) arg, *newlevel;
@@ -2123,8 +2123,8 @@ role_datum_t *merge_roles_dom(role_datum_t * r1, role_datum_t * r2)
 }
 
 /* This function eliminates the ordering dependency of role dominance rule */
-static int dominate_role_recheck(hashtab_key_t key, hashtab_datum_t datum,
-				 void *arg)
+static int dominate_role_recheck(hashtab_key_t key __attribute__ ((unused)),
+				 hashtab_datum_t datum, void *arg)
 {
 	role_datum_t *rdp = (role_datum_t *) arg;
 	role_datum_t *rdatum = (role_datum_t *) datum;
@@ -3443,7 +3443,7 @@ static int parse_categories(char *id, level_datum_t * levdatum, ebitmap_t * cats
 	return 0;
 }
 
-static int parse_semantic_categories(char *id, level_datum_t * levdatum,
+static int parse_semantic_categories(char *id, level_datum_t * levdatum __attribute__ ((unused)),
 				     mls_semantic_cat_t ** cats)
 {
 	cat_datum_t *cdatum;