./configure
loading cache ./config.cache
beginning autoconfiguration process
checking host system type... i686-pc-linux-gnu
checking target system type... i686-pc-linux-gnu
checking build system type... i686-pc-linux-gnu
checking for a BSD compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking whether make sets ${MAKE}... yes
checking for working aclocal-1.4... missing
checking for working autoconf... found
checking for working automake-1.4... missing
checking for working autoheader... found
checking for working makeinfo... missing
checking for gcc... gcc
checking whether the C compiler (gcc ) works... yes
checking whether the C compiler (gcc ) is a cross-compiler... no
checking whether we are using GNU C... yes
checking whether gcc accepts -g... yes
checking for a BSD compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for main in -lnet... yes
checking if debug is requested... no
checking for libnet... yes
checking for version 1.1.x of libnet... no
configure: error: Bad libnet version found in /libnet.h:
download libnet-1.1.x from http://www.packetfactory.net/projects/libnet/.
If you think this version of libnet is already installed on your system