[ANSI-C Compatibilty Update + Remove Redundant TCL Menu Entries]: Made changes to conform to ANSI-C standard and removed some redundant code in 'src/xschem.tcl'.

src/callback.c

@@ -2607,7 +2607,11 @@ static void handle_key_press(int event, KeySym key, int state, int rstate, int m
 {
   char str[PATH_MAX + 100];
   switch (key) {
-    case '0' ... '4': 
+    case '0':
+    case '1':
+    case '2':
+    case '3':
+    case '4':
       if(state == 0) {                                  /* toggle pin logic level */
         if(xctx->semaphore >= 2) break;
         if(key == '4') logic_set(-1, 1, NULL);
@@ -2638,7 +2642,10 @@ static void handle_key_press(int event, KeySym key, int state, int rstate, int m
       }  /* /20110112 */
       break;
 
-    case '6' ... '9': 
+    case '6':
+    case '7':
+    case '8':
+    case '9':
       if(state==ControlMask) {                        /* choose layer */
         char n[30];
         xctx->rectcolor = (int)key - '0'+4;

src/xschem.tcl

@@ -8736,17 +8736,12 @@ proc build_widgets { {topwin {} } } {
     -variable intuitive_interface -selectcolor $selectcolor \
     -command {xschem set intuitive_interface $intuitive_interface}
 
-  $topwin.menubar.option add checkbutton -label "Draw crosshair" \
-    -variable draw_crosshair -selectcolor $selectcolor -accelerator {Alt-X}
-  $topwin.menubar.option add checkbutton -label "Draw persistent snap cursor" -variable snap_cursor \
-     -selectcolor $selectcolor  -accelerator {Alt-Z}
-
   $topwin.menubar.option add cascade -label "Crosshair" \
        -menu $topwin.menubar.option.crosshair
   menu $topwin.menubar.option.crosshair -tearoff 0
 
   $topwin.menubar.option.crosshair add checkbutton -label "Draw snap cursor" \
-    -variable snap_cursor -selectcolor $selectcolor
+    -variable snap_cursor -selectcolor $selectcolor  -accelerator {Alt-Z}
   $topwin.menubar.option.crosshair add checkbutton -label "Draw crosshair" \
     -variable draw_crosshair -selectcolor $selectcolor -accelerator {Alt-X}
   $topwin.menubar.option.crosshair add command -label "Crosshair size" \