* Support function for mailbox pattern name matching in LIST and LSUB
* Returns nonzero if the supplied mailbox name matches the supplied pattern.
*/
-int imap_mailbox_matches_pattern(char *pattern, char *mailboxname)
+int imap_mailbox_matches_pattern(const char *pattern, char *mailboxname)
{
/* handle just-star case quickly */
if ((pattern[0] == '*') && (pattern[1] == '\0')) {