---
 siod/editline.c |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

--- a/siod/editline.c
+++ b/siod/editline.c
@@ -175,7 +175,7 @@ STATIC STATUS h_next();
 STATIC STATUS h_prev();
 STATIC STATUS h_first();
 STATIC STATUS h_last();
-STATIC int substrcmp(char *text, char *pat, int len);
+STATIC int substrcmp(const char *text, const char *pat, size_t len);
 STATIC ECHAR *search_hist(ECHAR *search, ECHAR *(*move)());
 STATIC STATUS h_search();
 STATIC STATUS fd_char();
@@ -223,10 +223,10 @@ int		rl_meta_chars = 0;
 */
 STATIC ECHAR	*editinput();
 #if	defined(USE_TERMCAP)
-extern char	*getenv();
-extern char	*tgetstr();
-extern int	tgetent();
-extern int	tgetnum();
+extern char	*getenv(const char *name);
+extern char	*tgetstr(const char * id, char ** sbuf);
+extern int	tgetent(char * bp, const char * name);
+extern int	tgetnum(const char * id);
 #endif	/* defined(USE_TERMCAP) */
 
 /*
@@ -797,7 +797,7 @@ STATIC STATUS h_last()
 /*
 **  Return zero if pat appears as a substring in text.
 */
-STATIC int substrcmp(char *text, char *pat, int len)
+STATIC int substrcmp(const char *text, const char *pat, size_t len)
 {
     ECHAR	c;
 
@@ -814,7 +814,7 @@ STATIC ECHAR *search_hist(ECHAR *search,
     static ECHAR	*old_search;
     int		len;
     int		pos;
-    int		(*match)();
+    int		(*match)(const char *s1, const char *s2, size_t n);
     char	*pat;
 
     /* Save or get remembered search pattern. */
