String constants are const.

gnu/dist/postfix/util/dict.c

@@ -213,7 +213,7 @@ typedef struct {
 
 void    dict_register(const char *dict_name, DICT *dict_info)
 {
-    char   *myname = "dict_register";
+    const char *myname = "dict_register";
     DICT_NODE *node;
 
     if (dict_table == 0)
@@ -255,7 +255,7 @@ static void dict_node_free(char *ptr)
 
 void    dict_unregister(const char *dict_name)
 {
-    char   *myname = "dict_unregister";
+    const char *myname = "dict_unregister";
     DICT_NODE *node;
 
     if ((node = dict_node(dict_name)) == 0)
@@ -270,7 +270,7 @@ void    dict_unregister(const char *dict_name)
 
 void    dict_update(const char *dict_name, const char *member, const char *value)
 {
-    char   *myname = "dict_update";
+    const char *myname = "dict_update";
     DICT_NODE *node;
     DICT   *dict;
 
@@ -290,7 +290,7 @@ void    dict_update(const char *dict_name, const char *member, const char *value
 
 const char *dict_lookup(const char *dict_name, const char *member)
 {
-    char   *myname = "dict_lookup";
+    const char *myname = "dict_lookup";
     DICT_NODE *node;
     DICT   *dict;
     const char *ret = 0;
@@ -313,7 +313,7 @@ const char *dict_lookup(const char *dict_name, const char *member)
 
 int     dict_delete(const char *dict_name, const char *member)
 {
-    char   *myname = "dict_delete";
+    const char *myname = "dict_delete";
     DICT_NODE *node;
     DICT   *dict;
     int     result;
@@ -338,7 +338,7 @@ int     dict_delete(const char *dict_name, const char *member)
 int     dict_sequence(const char *dict_name, const int func,
 		              const char **member, const char **value)
 {
-    char   *myname = "dict_sequence";
+    const char *myname = "dict_sequence";
     DICT_NODE *node;
     DICT   *dict;
 
@@ -428,7 +428,7 @@ struct dict_eval_context {
 static int dict_eval_action(int type, VSTRING *buf, char *ptr)
 {
     struct dict_eval_context *ctxt = (struct dict_eval_context *) ptr;
-    char   *myname = "dict_eval_action";
+    const char *myname = "dict_eval_action";
     const char *pp;
 
     if (msg_verbose)
@@ -521,7 +521,7 @@ void    dict_walk(DICT_WALK_ACTION action, char *ptr)
 
 int     dict_changed(void)
 {
-    char   *myname = "dict_changed";
+    const char *myname = "dict_changed";
     struct stat st;
     HTABLE_INFO **ht_info_list;
     HTABLE_INFO **ht;

gnu/dist/postfix/util/dict_db.c

@@ -267,7 +267,7 @@ static int dict_db_delete(DICT *dict, const char *key)
 static int dict_db_sequence(DICT *dict, const int function,
 			            const char **key, const char **value)
 {
-    char   *myname = "dict_db_sequence";
+    const char *myname = "dict_db_sequence";
     DICT_DB *dict_db = (DICT_DB *) dict;
     DB     *db = dict_db->db;
     DBT     db_key;

gnu/dist/postfix/util/dict_dbm.c

@@ -242,7 +242,7 @@ static int dict_dbm_delete(DICT *dict, const char *key)
 static int dict_dbm_sequence(DICT *dict, const int function,
 			             const char **key, const char **value)
 {
-    char   *myname = "dict_dbm_sequence";
+    const char *myname = "dict_dbm_sequence";
     DICT_DBM *dict_dbm = (DICT_DBM *) dict;
     datum   dbm_key;
     datum   dbm_value;

gnu/dist/postfix/util/dict_ldap.c

@@ -128,7 +128,7 @@ static void dict_ldap_timeout(int unused_sig)
 
 static const char *dict_ldap_lookup(DICT *dict, const char *name)
 {
-    char   *myname = "dict_ldap_lookup";
+    const char *myname = "dict_ldap_lookup";
     DICT_LDAP *dict_ldap = (DICT_LDAP *) dict;
     static VSTRING *result;
     LDAPMessage *res = 0;
@@ -365,7 +365,7 @@ static void dict_ldap_update(DICT *dict, const char *unused_name,
 
 static void dict_ldap_close(DICT *dict)
 {
-    char   *myname = "dict_ldap_close";
+    const char *myname = "dict_ldap_close";
     DICT_LDAP *dict_ldap = (DICT_LDAP *) dict;
 
     if (dict_ldap->ld)
@@ -385,7 +385,7 @@ static void dict_ldap_close(DICT *dict)
 
 DICT   *dict_ldap_open(const char *ldapsource, int dummy, int dict_flags)
 {
-    char   *myname = "dict_ldap_open";
+    const char *myname = "dict_ldap_open";
     DICT_LDAP *dict_ldap;
     VSTRING *config_param;
     int     rc = 0;

gnu/dist/postfix/util/dict_nis.c

@@ -77,7 +77,7 @@ static char *dict_nis_domain;
 
 static void dict_nis_init(void)
 {
-    char   *myname = "dict_nis_init";
+    const char *myname = "dict_nis_init";
 
     if (yp_get_default_domain(&dict_nis_domain) != 0
 	|| dict_nis_domain == 0 || *dict_nis_domain == 0

gnu/dist/postfix/util/dict_open.c

@@ -170,7 +170,7 @@
   * lookup table for available map types.
   */
 typedef struct {
-    char   *type;
+    const char *type;
     struct DICT *(*open) (const char *, int, int);
 } DICT_OPEN_INFO;
 

gnu/dist/postfix/util/dict_unix.c

@@ -133,7 +133,7 @@ DICT   *dict_unix_open(const char *map, int unused_flags, int dict_flags)
 {
     DICT_UNIX *dict_unix;
     struct dict_unix_lookup {
-	char   *name;
+	const char *name;
 	const char *(*lookup) (DICT *, const char *);
     };
     static struct dict_unix_lookup dict_unix_lookup[] = {