[root@pc1 ~]# cd /root
[root@pc1 ~]# tar xzf snort-2.8.0.1.tar.gz
[root@pc1 ~]# cd snort-2.8.0.1
[root@pc1 snort-2.8.0.1]# ./configure && make && make install
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk

checking pfring.h presence... no
checking for pfring.h... no
checking for pfring_open in -lpfring... no
checking for pfring_open in -lpcap... no

ERROR! Libpcap library/headers (libpcap.a (or .so)/pcap.h)
not found, go get it from http://www.tcpdump.org
or use the --with-libpcap-* options, if you have it installed
in unusual place. Also check if your libpcap depends on another
shared library that may be installed in an unusual place


[root@pc1 ~]# rpm -qa | grep libpcap
libpcap-0.9.7-1.fc7
[root@pc1 ~]# rpm -ql libpcap
/usr/lib/libpcap.so.0.9
/usr/lib/libpcap.so.0.9.7
/usr/share/doc/libpcap-0.9.7
/usr/share/doc/libpcap-0.9.7/CHANGES
/usr/share/doc/libpcap-0.9.7/CREDITS
/usr/share/doc/libpcap-0.9.7/LICENSE
/usr/share/doc/libpcap-0.9.7/README
/usr/share/doc/libpcap-0.9.7/pcap.txt
[root@pc1 ~]# cd snort-2.8.0.1
[root@pc1 snort-2.8.0.1]# ./configure --with-libpcap-libraries=/usr/lib && make && make install
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking for style of include used by make... GNU

checking for pfring.h... no
checking for pfring_open in -lpfring... no
checking for pfring_open in -lpcap... no

ERROR! Libpcap library/headers (libpcap.a (or .so)/pcap.h)
not found, go get it from http://www.tcpdump.org
or use the --with-libpcap-* options, if you have it installed
in unusual place. Also check if your libpcap depends on another
shared library that may be installed in an unusual place