pattern while executing a case statement), flags should include
QGLOB_CVTNULL. If flags includes QGLOB_FILENAME, appropriate quoting
to match a filename should be performed. */
-extern char *quote_string_for_globbing __P((char *, int));
+extern char *quote_string_for_globbing __P((const char *, int));
extern char *quote_globbing_chars __P((char *));
/* Call the glob library to do globbing on PATHNAME. */
-extern char **shell_glob_filename __P((char *));
+extern char **shell_glob_filename __P((const char *));
/* Filename completion ignore. Used to the "fignore" facility of
tcsh and GLOBIGNORE (like ksh-93 FIGNORE).