- add central knob to turn off getopt_long everywhere. EXPERIMENTAL!

Adds "Enable getopt long" under "General options", default y.
  Send patches to fix getopt_ulflags and run_parts.c if you turn this off..
  See http://busybox.net/lists/busybox/2006-May/021828.html for a start to run-parts

util-linux/Config.in

@@ -199,10 +199,10 @@ config CONFIG_HWCLOCK
 	  shutdown in the hardware clock, so the hardware will keep the
 	  correct time when Linux is _not_ running.
 
-config CONFIG_FEATURE_HWCLOCK_LONGOPTIONS
+config CONFIG_FEATURE_HWCLOCK_LONG_OPTIONS
 	bool "Support long options (--hctosys,...)"
 	default n
-	depends on CONFIG_HWCLOCK
+	depends on CONFIG_HWCLOCK && CONFIG_GETOPT_LONG
 	help
 	  By default, the hwclock utility only uses short options.  If you
 	  are overly fond of its long options, such as --hctosys, --utc, etc)

util-linux/hwclock.c

@@ -37,7 +37,7 @@ struct linux_rtc_time {
 #define RTC_SET_TIME   _IOW('p', 0x0a, struct linux_rtc_time) /* Set RTC time    */
 #define RTC_RD_TIME    _IOR('p', 0x09, struct linux_rtc_time) /* Read RTC time   */
 
-#ifdef CONFIG_FEATURE_HWCLOCK_LONGOPTIONS
+#if ENABLE_FEATURE_HWCLOCK_LONG_OPTIONS
 # ifndef _GNU_SOURCE
 #  define _GNU_SOURCE
 # endif
@@ -186,7 +186,7 @@ int hwclock_main ( int argc, char **argv )
 	unsigned long opt;
 	int utc;
 
-#ifdef CONFIG_FEATURE_HWCLOCK_LONGOPTIONS
+#if ENABLE_FEATURE_HWCLOCK_LONG_OPTIONS
 static const struct option hwclock_long_options[] = {
 		{ "localtime", 0, 0, 'l' },
 		{ "utc",       0, 0, 'u' },