libnids give the following error after ./configure :

checking for libnet... Working libnet not found; get it from packetfactory.net/projects/libnet and reinstall
configure: error: libnet
localhost libnids-1.18]#

even though i have downloaded and installed libnet from packetfactory. I get no error messages during the install process for libnet.

the config.log for libnet:

localhost Libnet-latest]# more config.log
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

configure:578: checking host system type
configure:599: checking target system type
configure:617: checking build system type
configure:656: checking for a BSD compatible install
configure:709: checking whether build environment is sane
configure:780: checking for mawk
configure:780: checking for gawk
configure:810: checking whether make sets ${MAKE}
configure:933: checking for gcc
configure:1046: checking whether the C compiler (gcc ) works
configure:1062: gcc -o conftest conftest.c 1>&5
configure:1088: checking whether the C compiler (gcc ) is a cross-compiler
configure:1093: checking whether we are using GNU C
configure:1102: gcc -E conftest.c
configure:1121: checking whether gcc accepts -g
configure:1160: checking for style of include used by make
configure:1194: checking dependency style of gcc
configure:1272: checking for a BSD compatible install
configure:1327: checking for ranlib
configure:1356: checking how to run the C preprocessor
configure:1377: gcc -E conftest.c >/dev/null 2>conftest.out
configure:1439: checking for sys/sockio.h
configure:1449: gcc -E conftest.c >/dev/null 2>conftest.out
configure:1445:24: sys/sockio.h: No such file or directory
configure: failed program was:
#line 1444 "configure"
#include "confdefs.h"
#include <sys/sockio.h>
configure:1478: checking machine endianess
configure:1550: checking if unaligned accesses fail
configure:1631: checking whether gcc needs -traditional
configure:1685: checking for strerror
configure:1713: gcc -o conftest -g -O2 -Wall conftest.c 1>&5
configure:1739: checking link-layer packet interface type
configure:1768: checking for packet socet (PF_SOCKET)
configure:1894: checking for net/ethernet.h
configure:1904: gcc -E conftest.c >/dev/null 2>conftest.out
localhost Libnet-latest]#

any help greatly appreciated.

thx