File cscope-ctrlz.patch of Package cscope

# restore control-z functionality of interactive cscope.
# version 15.6 (and previous) had control-z functionality because 
# the terminal was in cbreak mode.  Putting the terminal in raw mode
# fixed using control-c to change the 'ignore case mode'.
# catch the control-z and send ourself the suspend signal.
# rcoe@wi.rr.com
#
--- cscope-15.7a/src/command.c	2009-04-10 08:40:36.000000000 -0500
+++ cscope-15.7a.orig/src/command.c	2011-06-10 09:33:21.862932467 -0500
@@ -634,11 +634,13 @@ changestring(void)
 	atchange();
 		
 	/* get a character from the terminal */
-	if ((c = mygetch()) == EOF
-	    || c == ctrl('D') 
-	    || c == ctrl('Z')) {
+	if ((c = mygetch()) == EOF || c == ctrl('D')) {
 	    break;	/* change lines */
 	}
+	if (c == ctrl('Z')) {
+	    kill(0, SIGTSTP);
+	    goto same;
+	}
 	/* see if the input character is a command */
 	switch (c) {
 	case ' ':	/* display next page */
--- cscope-15.7a/src/main.c	2011-06-09 15:36:06.275174224 -0500
+++ cscope-15.7a.orig/src/main.c	2011-06-10 09:39:17.120599658 -0500
@@ -707,9 +707,13 @@ cscope: cannot read source file name fro
 	    atfield();	/* move to the input field */
 
 	/* exit if the quit command is entered */
-	if ((c = mygetch()) == EOF || c == ctrl('D') || c == ctrl('Z')) {
+	if ((c = mygetch()) == EOF || c == ctrl('D')) {
 	    break;
 	}
+	if (c == ctrl('Z')) {
+	    kill(0, SIGTSTP);
+	    continue;
+	}
 	/* execute the commmand, updating the display if necessary */
 	if (command(c) == YES) {
 	    display();