diff --git a/src/flexdef.h b/src/flexdef.h
index 627268da..b4e3b68d 100644
--- a/src/flexdef.h
+++ b/src/flexdef.h
@@ -799,8 +799,6 @@ extern void mkechar(int, int[], int[]);
 
 /* from file gen.c */
 
-extern void do_indent(void);	/* indent to the current level */
-
 /* Set a conditional amd make it visible in generated code */
 extern void visible_define (const char *);
 
@@ -810,21 +808,6 @@ extern void visible_define_str (const char *, const char *);
 /* This time the value part is an int */
 extern void visible_define_int (const char *, const int);
 
-/* Generate full speed compressed transition table. */
-extern void genctbl(void);
-
-/* generate full transition table */
-extern void genftbl(void);
-
-/* Generate data statements for the transition tables. */
-extern void gentabs(void);
-
-/* Write out a formatted string at the current indentation level. */
-extern void indent_put2s(const char *, const char *);
-
-/* Write out a string + newline at the current indentation level. */
-extern void indent_puts(const char *);
-
 /* generate transition tables */
 extern void make_tables(void);
 
diff --git a/src/gen.c b/src/gen.c
index 3d170d63..3522d875 100644
--- a/src/gen.c
+++ b/src/gen.c
@@ -43,7 +43,7 @@ struct yy_trans_info {int32_t yy_verify; int32_t yy_nxt;};
 
 /* declare functions that have forward references */
 
-void	genecs(void);
+static void genecs(void);
 
 struct packtype_t *optimize_pack(size_t sz)
 {
@@ -243,7 +243,7 @@ static struct yytbl_data *mkssltbl (void)
 
 /* genctbl - generates full speed compressed transition table */
 
-void genctbl (void)
+static void genctbl(void)
 {
 	int i;
 	int     end_of_buffer_action = num_rules + 1;
@@ -363,7 +363,7 @@ static struct yytbl_data *mkecstbl (void)
 
 /* Generate equivalence-class tables. */
 
-void genecs (void)
+static void genecs(void)
 {
 	int ch, row;
 	int     numrows;
@@ -403,7 +403,7 @@ void genecs (void)
  * you should call mkecstbl() after this.
  */
 
-struct yytbl_data *mkftbl (void)
+static struct yytbl_data *mkftbl(void)
 {
 	int i;
 	int     end_of_buffer_action = num_rules + 1;
@@ -437,7 +437,7 @@ struct yytbl_data *mkftbl (void)
 
 /* genftbl - generate full transition table */
 
-void genftbl (void)
+static void genftbl(void)
 {
 	int i;
 	int     end_of_buffer_action = num_rules + 1;
@@ -474,7 +474,7 @@ void genftbl (void)
 
 /* gentabs - generate data statements for the transition tables */
 
-void gentabs (void)
+static void gentabs(void)
 {
 	int     sz, i, j, k, *accset, nacc, *acc_array, total_states;
 	int     end_of_buffer_action = num_rules + 1;
diff --git a/src/tables.h b/src/tables.h
index b8c2bbef..a9536a68 100644
--- a/src/tables.h
+++ b/src/tables.h
@@ -72,7 +72,6 @@ int     yytbl_hdr_fwrite (struct yytbl_writer *wr,
 			  const struct yytbl_hdr *th);
 int     yytbl_data_fwrite (struct yytbl_writer *wr, struct yytbl_data *td);
 void    yytbl_data_compress (struct yytbl_data *tbl);
-struct yytbl_data *mkftbl (void);
 
 
 #ifdef __cplusplus