Ticket #1876: use Ctrl-g key to generate SIGINT signal.

Ctrl-g instead of Ctrl-c is used now to generate SIGINT signal.
SIGINT signal generating for MC/NCurses library is enabled now.

Signed-off-by: Andrew Borodin <aborodin@vmail.ru>

src/tty/tty-ncurses.c

@@ -149,14 +149,17 @@ tty_init (gboolean slow, gboolean ugly_lines)
     ESCDELAY = 200;
 #endif /* HAVE_ESCDELAY */
 
+    /* use Ctrl-g to generate SIGINT */
+    cur_term->Nttyb.c_cc[VINTR] = CTRL ('g'); /* ^g */
+    tcsetattr (cur_term->Filedes, TCSANOW, &cur_term->Nttyb);
+
     tty_start_interrupt_key ();
 
     do_enter_ca_mode ();
-    raw ();
+    tty_raw_mode ();
     noecho ();
     keypad (stdscr, TRUE);
     nodelay (stdscr, FALSE);
-
 }
 
 void
@@ -180,12 +183,14 @@ tty_reset_shell_mode (void)
 void
 tty_raw_mode (void)
 {
-    raw ();
+    raw (); /* FIXME: uneeded? */
+    cbreak ();
 }
 
 void
 tty_noraw_mode (void)
 {
+    nocbreak (); /* FIXME: unneeded? */
     noraw ();
 }
 

src/tty/tty-slang.c

@@ -264,8 +264,7 @@ tty_init (gboolean slow, gboolean ugly_lines)
 
     tcgetattr (fileno (stdin), &boot_mode);
     /* 255 = ignore abort char; XCTRL('g') for abort char = ^g */
-    /* SLang_init_tty (XCTRL ('c'), 1, 0); */
+    SLang_init_tty (XCTRL ('g'), 1, 0);
-    SLang_init_tty (255, 1, 0);
 
     if (ugly_lines)
         SLtt_Has_Alt_Charset = 0;