Hello All, sorry for all my error of writing... I have tried to compile the bridge util in formality brctld and just tried to compile it has given me this error: /usr/src/bridge-utils-1.0.4/brctl# make brctld gcc -Wall -g -O2 brctld.c -o brctld brctld.c: In function `runchild': brctld.c:122: warning: implicit declaration of function `br_find_bridge' brctld.c:122: warning: assignment makes pointer from integer without a cast brctld.c:132: warning: implicit declaration of function `br_command_lookup' brctld.c:132: warning: assignment makes pointer from integer without a cast brctld.c:137: error: structure has no member named `needs_bridge_argument' brctld.c:143: warning: passing arg 1 of pointer to function from incompatible pointer type brctld.c:143: error: too many arguments to function make: *** [brctld] Error 1 How i can resolve this problem? N.B. : I use Slackware 10 patched..... Thanks for all... Claudio !