NSH Configuration: Refactor networking and netutils dependencies

ChangeLog.txt

@@ -754,4 +754,7 @@
 	* apps/examples/mount/Kconfig:  Fill in empty Kconfig file (2013-12-31).
 	* builtin/Makefile: Fixes for native Windows build from Max Holtzberg
 	  (2014-1-4).
-
+	* apps/netutils/dhcpc/Kconfig, resolv/Kconfig, telnetd/Kconfig, and
+	  apps/nshlib/Kconfig:  Refactor some configuration dependencies:  NSH
+	  features should debug on netutil selections; netutil selections
+	  should depend on networking selections. (2014-1-9).

netutils/dhcpc/Kconfig

@@ -6,6 +6,7 @@
 config NETUTILS_DHCPC
 	bool "DHCP client"
 	default n
+	depends on NET && NET_UDP && NET_BROADCAST
 	---help---
 		Enable support for the DHCP client.
 

netutils/resolv/Kconfig

@@ -6,6 +6,7 @@
 config NETUTILS_RESOLV
 	bool "Name resolution"
 	default n
+	depends on NET && NET_UDP && NET_BROADCAST
 	---help---
 		Enable support for the name resolution.
 

netutils/telnetd/Kconfig

@@ -6,6 +6,7 @@
 config NETUTILS_TELNETD
 	bool "Telet daemon"
 	default n
+	depends on NET && NET_TCP
 	---help---
 		Enable support for the Telnet daemon.
 

nshlib/Kconfig

@@ -558,7 +558,7 @@ config NSH_ARCHINIT
 config NSH_TELNET
 	bool "Use Telnet console"
 	default n
-	depends on NET && NET_TCP
+	depends on NETUTILS_TELNETD
 	---help---
 		If NSH_TELNET is set to 'y', then a TELENET
 		server front-end is selected.  When this option is provided,
@@ -568,6 +568,7 @@ config NSH_TELNET
 endif
 
 if NSH_TELNET
+
 config NSH_TELNETD_PORT
 	int "Telnet port number"
 	default 23
@@ -639,7 +640,7 @@ endif
 config NSH_DHCPC
 	bool "Use DHCP to get IP address"
 	default n
-	depends on NSH_LIBRARY && NET && NET_UDP && NET_BROADCAST
+	depends on NSH_LIBRARY && NETUTILS_DHCPC
 	---help---
 		Obtain the IP address via DHCP.
 
@@ -674,7 +675,7 @@ config NSH_NETMASK
 config NSH_DNS
 	bool "Use DNS"
 	default n
-	depends on NSH_LIBRARY && NET && NET_UDP && NET_BROADCAST
+	depends on NSH_LIBRARY && NETUTILS_RESOLV
 	---help---
 		Configure to use a DNS.