Fix compilation errors with GCC-14 and C23
https://bugs.gentoo.org/875242
https://bugs.gentoo.org/898974
and also fold linking with ncurces[tinfo] from sed to configure.ac
https://bugs.gentoo.org/527036
diff -ru a/configure.in b/configure.in
--- a/configure.in	2025-01-08 21:48:25.202798412 +0400
+++ b/configure.in	2025-01-08 21:50:36.184060767 +0400
@@ -5,7 +5,7 @@
 EXTRA_DEPS=""
 EXTRA_LIBS=""
 EXTRA_CFLAGS=""
-TERMCAP_LIB=""
+TINFO_LIB=""
 
 dnl Check configure arguments
 AC_MSG_CHECKING(whether to use libreadline for cmd-line editing)
@@ -65,8 +65,8 @@
 if test -z "$fakereadline"; then
 
   dnl libtermcap (or (n)curses) is only needed by libreadline
-  BASH_CHECK_LIB_TERMCAP
-  LIBS="$LIBS $TERMCAP_LIB"
+  BASH_CHECK_LIB_TINFO
+  LIBS="$LIBS $TINFO_LIB"
 
   dnl check for readline headers
   AC_CHECK_HEADERS(readline/readline.h readline/history.h, , 
@@ -127,7 +127,7 @@
 AC_SUBST(EXTRA_DEPS)
 AC_SUBST(EXTRA_CFLAGS)
 AC_SUBST(EXTRA_LIBS)
-AC_SUBST(TERMCAP_LIB)
+AC_SUBST(TINFO_LIB)
 
 AC_OUTPUT(Makefile fake_readline/Makefile test/Makefile)
 
diff -ru a/completion.c b/completion.c
--- a/completion.c	2025-01-08 21:55:33.535386179 +0400
+++ b/completion.c	2025-01-08 21:59:46.899959311 +0400
@@ -41,7 +41,8 @@
 /* Tell the GNU Readline library how to complete.  We want to try to complete
  on command names if this is the first word in the line, or on filenames
  if not. */
-void	initialize_readline()
+void 
+initialize_readline (void)
 {
 #ifdef DEBUG
    printf("Using readline library version: %s\n", rl_library_version);
@@ -53,7 +54,7 @@
     so that if zssh_completion() fails nothing is completed */
    rl_completion_entry_function = fake_generator;
    /* Tell the completer that we want a crack first. */
-   rl_attempted_completion_function = (CPPFunction *) zssh_completion;
+   rl_attempted_completion_function = zssh_completion;
    
 }
 
@@ -62,10 +63,8 @@
  the word to complete.  We can use the entire contents of rl_line_buffer
  in case we want to do some simple parsing.  Return the array of matches,
  or NULL if there aren't any. */
-char		**zssh_completion(text, start, end)
-char		*text;
-int		start;
-int		end;
+char **
+zssh_completion (const char *text, int start, int end)
 {
    char		**matches;
    
@@ -89,9 +88,8 @@
 /* Generator function for command completion.  STATE lets us know whether
  to start from scratch; without any state (i.e. STATE == 0), then we
  start at the top of the list. */
-char		*command_generator(text, state)
-const char	*text;
-int		state;
+char *
+command_generator (const char *text, int state)
 {
    static int	list_index, len;
    char		*name;
@@ -123,9 +121,8 @@
  to start from scratch; without any state (i.e. STATE == 0), then we
  start at the top of the list. */
 #if 0
-char			*tilde_generator(text, state)
-char			*text;
-int			state;
+char *
+tilde_generator (char *text, int state)
 {
    struct passwd	*pwd;
    static int		len;
@@ -154,9 +151,8 @@
 }
 #endif /* 0 */
 
-char			*fake_generator(text, state)
-const char		*text;
-int			state;
+char *
+fake_generator (const char *text, int state)
 {
    return (0);
 }
diff -ru a/fun.h b/fun.h
--- a/fun.h	2025-01-08 21:55:33.531386202 +0400
+++ b/fun.h	2025-01-08 22:00:12.795813473 +0400
@@ -1,7 +1,7 @@
 
 /* completion.c */
 void initialize_readline(void);
-char **zssh_completion(char *text, int start, int end);
+char **zssh_completion(const char *text, int start, int end);
 char *command_generator(const char *text, int state);
 char *tilde_generator(char *text, int state);
 char *fake_generator(const char *text, int state);
diff -ru a/init.c b/init.c
--- a/init.c	2025-01-08 21:55:33.535386179 +0400
+++ b/init.c	2025-01-08 21:58:35.526361264 +0400
@@ -90,7 +90,8 @@
       exit (0);
 }
 
-void	usage()
+void 
+usage (void)
 {
    printf("\
 Usage: zssh    [zssh options] [--] [ssh options]\n\
@@ -143,7 +144,8 @@
  * ^@ -> C-Space
  * ^X -> C-x
  */
-char	*escape_help()
+char *
+escape_help (void)
 {
    static char	str[40];
    
@@ -154,9 +156,8 @@
    return (str);
 }
 
-void	command_line_options(argc,argv)
-int	*argc;
-char	***argv;
+void 
+command_line_options (int *argc, char ***argv)
 {
    int	ac = *argc;
    char	**av = *argv;
@@ -213,9 +214,8 @@
 }
 
 
-void			init(argc,argv)
-int			*argc;
-char			***argv;
+void 
+init (int *argc, char ***argv)
 {
    char			*str;
 
diff -ru a/zssh.h b/zssh.h
--- a/zssh.h	2025-01-08 21:55:33.535386179 +0400
+++ b/zssh.h	2025-01-08 21:57:02.938882687 +0400
@@ -45,6 +45,7 @@
 #include <utmp.h>
 #include <signal.h>
 #include <ctype.h>
+#include <pty.h>
 
 /*#include <term.h> alpha */