HELP

[mariobedia na mx2.redestb.es]

When i try to install some programs (isode-8.0.rpm on redhat 5.0), i
have many troubles:
the message is 
In file included from general.c:31
../h/general.h:280 conflicting types for nhtol
/usr/include/netinet/in.h:198: previous declaration of ntohl
.//h/general.h:283: conflicting types for htonl
/usr/include/netinet/in.h:200: previous declaration of htonl
make[1]:+++[general.o] Error 1

What can i do???

Thanks