client install breaks on FreeBSD

[Peter Van Epp]

	After installing bison (which isn't there by default) the client 
build died on FreeBSD 4.3-RELEASE. I haven't poked at why yet nor tried OpenBSD
or Netbsd.

gcc -O2 -I. -I../include -DHAVE_SYS_SOCKIO_H=1 -DHAVE_STRING_H=1 -DHAVE_FCNTL_H=1 -DHAVE_SYS_FILE_H=1 -DHAVE_ETHER_HOSTTON=1 -DHAVE_STRERROR=1 -DSTDC_HEADERS=1  -DARGUS_SYSLOG=1 -c ./gencode.c
gcc -O2 -I. -I../include -DHAVE_SYS_SOCKIO_H=1 -DHAVE_STRING_H=1 -DHAVE_FCNTL_H=1 -DHAVE_SYS_FILE_H=1 -DHAVE_ETHER_HOSTTON=1 -DHAVE_STRERROR=1 -DSTDC_HEADERS=1  -DARGUS_SYSLOG=1 -c ./argus_filter.c
./argus_filter.c:3507: conflicting types for `ether_ntohost'
/usr/include/net/ethernet.h:114: previous declaration of `ether_ntohost'
./argus_filter.c: In function `argus_ether_hostton':
./argus_filter.c:4494: conflicting types for `ether_hostton'
/usr/include/net/ethernet.h:111: previous declaration of `ether_hostton'
./argus_filter.c:4494: warning: extern declaration of `ether_hostton' doesn't match global one
*** Error code 1

Stop in /usr/local/src/argus-clients-2.0.1.alpha.2/common.
*** Error code 1

Peter Van Epp / Operations and Technical Support 
Simon Fraser University, Burnaby, B.C. Canada