Hi list is trying to install mediaproxy 2.0.3 in centos 5 and when I make python ./setup.py install it generates me this error: mediaproxy/interfaces/system/_conntrack.c:490: warning: implicit declaration of function ânfct_catchâ mediaproxy/interfaces/system/_conntrack.c:491: warning: implicit declaration of function ânfct_callback_unregisterâ mediaproxy/interfaces/system/_conntrack.c:502: warning: implicit declaration of function ânfct_get_attr_u8â mediaproxy/interfaces/system/_conntrack.c:502: error: âATTR_ORIG_L3PROTOâ undeclared (first use in this function) mediaproxy/interfaces/system/_conntrack.c:503: error: âATTR_REPL_L3PROTOâ undeclared (first use in this function) mediaproxy/interfaces/system/_conntrack.c:504: error: âATTR_ORIG_L4PROTOâ undeclared (first use in this function) mediaproxy/interfaces/system/_conntrack.c:505: error: âATTR_REPL_L4PROTOâ undeclared (first use in this function) mediaproxy/interfaces/system/_conntrack.c:513: error: âATTR_ORIG_IPV4_SRCâ undeclared (first use in this function) mediaproxy/interfaces/system/_conntrack.c:514: error: âATTR_ORIG_PORT_SRCâ undeclared (first use in this function) mediaproxy/interfaces/system/_conntrack.c:515: error: âATTR_DNAT_IPV4â undeclared (first use in this function) mediaproxy/interfaces/system/_conntrack.c:515: error: âATTR_REPL_IPV4_SRCâ undeclared (first use in this function) mediaproxy/interfaces/system/_conntrack.c:516: error: âATTR_DNAT_PORTâ undeclared (first use in this function) mediaproxy/interfaces/system/_conntrack.c:516: error: âATTR_REPL_PORT_SRCâ undeclared (first use in this function) error: command 'gcc' failed with exit status 1 I already have installed the bookstore python any suggestion is appreciated? best regards rickygm