--- less-443/main.c.orig	2011-04-20 12:00:59.624710415 +0200
+++ less-443/main.c	2011-04-20 12:02:47.273436639 +0200
@@ -55,6 +55,7 @@ static char consoleTitle[256];
 #endif
 
 extern int	less_is_more;
+public int	line_count;
 extern int	missing_cap;
 extern int	know_dumb;
 extern int	quit_if_one_screen;
--- less-406/main.c.Foption	2007-06-17 18:56:04.000000000 +0200
+++ less-406/main.c	2008-01-11 10:18:46.000000000 +0100
@@ -280,6 +281,16 @@ main(argc, argv)
 	{
 		if (edit_first())  /* Edit first valid file in cmd line */
 			quit(QUIT_ERROR);
+		/*
+		 * In case that we have only one file and -F, have to get a line
+		 * count fot init(). If the line count is less then a height of a term,
+		 * the content of the file is printed out and then less quits. Otherwise
+		 * -F can not be used
+		 */
+		if (nifile() == 1 && quit_if_one_screen)
+			line_count = get_line_count();
+		else if (nifile() > 1) /* In case more than one file, -F can not be used */
+			quit_if_one_screen = FALSE;
 	}
 
 	init();
--- less-406/screen.c.Foption	2007-06-17 18:56:04.000000000 +0200
+++ less-406/screen.c	2008-01-11 10:20:00.000000000 +0100
@@ -204,6 +204,7 @@ public int missing_cap = 0;	/* Some capa
 
 static int attrmode = AT_NORMAL;
 extern int binattr;
+extern int line_count;
 
 #if !MSDOS_COMPILER
 static char *cheaper();
@@ -233,6 +234,7 @@ extern int wscroll;
 extern int screen_trashed;
 extern int tty;
 extern int top_scroll;
+extern int quit_if_one_screen;
 extern int oldbot;
 #if HILITE_SEARCH
 extern int hilite_search;
@@ -1534,7 +1536,9 @@ win32_deinit_term()
 init()
 {
 #if !MSDOS_COMPILER
-	if (!no_init)
+	if (quit_if_one_screen && line_count >= sc_height)
+		quit_if_one_screen = FALSE;
+	if (!no_init && !quit_if_one_screen) 
 		tputs(sc_init, sc_height, putchr);
 	if (!no_keypad)
 		tputs(sc_s_keypad, sc_height, putchr);
@@ -1573,8 +1577,9 @@ deinit()
 #if !MSDOS_COMPILER
 	if (!no_keypad)
 		tputs(sc_e_keypad, sc_height, putchr);
-	if (!no_init)
-		tputs(sc_deinit, sc_height, putchr);
+	if (!no_init && !quit_if_one_screen) 
+		tputs(sc_deinit, sc_height, putchr);	
+	
 #else
 	/* Restore system colors. */
 	SETCOLORS(sy_fg_color, sy_bg_color);
--- less-406/funcs.h.Foption	2007-03-24 07:27:54.000000000 +0100
+++ less-406/funcs.h	2008-01-11 09:36:16.000000000 +0100
@@ -126,6 +126,7 @@
 	public void forward ();
 	public void backward ();
 	public int get_back_scroll ();
+	public int get_line_count ();
 	public void del_ifile ();
 	public IFILE next_ifile ();
 	public IFILE prev_ifile ();
--- less-406/forwback.c.Foption	2007-06-17 18:56:04.000000000 +0200
+++ less-406/forwback.c	2008-01-11 09:37:15.000000000 +0100
@@ -410,3 +410,24 @@ get_back_scroll()
 		return (sc_height - 2);
 	return (10000); /* infinity */
 }
+	
+/*
+ * Get line count of file
+ */
+	public int
+get_line_count()
+{
+	int nlines = 0;
+	POSITION pos;
+	
+	pos = position(TOP);
+	
+	while (pos != NULL_POSITION && nlines <= sc_height)
+	{
+		pos = forw_line(pos);
+		nlines++;
+	}
+	
+	return nlines;
+}
+