mount: make -f work even without mtab support
(Cristian Ionescu-Idbohrn <cristian.ionescu-idbohrn at axis.com>)

diff --git a/util-linux/Config.in b/util-linux/Config.in
index d1688e8..5a47318 100644
--- a/util-linux/Config.in
+++ b/util-linux/Config.in
@@ -386,6 +386,13 @@
 	  NFS filesystems.  Most people using BusyBox will also want to enable
 	  the 'mount' utility.
 
+config FEATURE_MOUNT_FAKE
+	bool "mount -f option"
+	default n
+	depends on MOUNT
+	help
+	  Enable support for faking a file system mount.
+
 config FEATURE_MOUNT_HELPERS
 	bool "Support mount helpers"
 	default n
@@ -542,6 +549,7 @@
 	bool "Support for the old /etc/mtab file"
 	default n
 	depends on MOUNT || UMOUNT
+	select FEATURE_MOUNT_FAKE
 	help
 	  Historically, Unix systems kept track of the currently mounted
 	  partitions in the file "/etc/mtab".  These days, the kernel exports