rebuilding libpcap

[Alexej Sokolov]

Hello,
how to correctly rebuild only libpcap from /usr/src/contrib without
rebuilding the whole world ?
I try to do in libpcap some changes, then make; make install in
/usr/src/contrib/libpcap,
but the changes are not visible by calling changed functions :(
What I do wrong ?

Thanks,
Alexej

P.S: % uname -v
FreeBSD 7.0-RELEASE-p10 #1: Mon Mar 16 16:58:38 CET 2009