Introduce CONTENTS variable into Makefiles to list the contents of the directory, excluding the Makefile for to Make life easier

net.Linux/Makefile

@@ -1,8 +1,5 @@
 DIR  = $(RC_LIB)/net 
-CONF = adsl.sh apipa.sh arping.sh bonding.sh br2684ctl.sh bridge.sh \
-	   ccwgroup.sh clip.sh ifconfig.sh ifplugd.sh ip6to4.sh ipppd.sh \
-	   iproute2.sh iwconfig.sh netplugd.sh pppd.sh pump.sh tuntap.sh \
-	   udhcpc.sh vlan.sh
+CONF = $(CONTENTS)
 
 TOPDIR = ..
 include $(TOPDIR)/default.mk