Installation instructions for iftop
$Id: INSTALL,v 1.1.1.2 2016/10/18 14:04:50 misho Exp $


iftop is now autoconf/automake-enabled. You should be able to build it on
common platforms by typing `./configure && make'.

There is one gotcha, however, which is that some systems, such as FreeBSD,
lack a working implementation of the gethostbyaddr_r(3) C library function. On
such systems, you may want to use the --with-resolver=ares configure option to
build a version of iftop which uses the ARES asynchronous DNS library for name
resolution. An alternative is to use --with-resolver=netdb_1thread, which will
make iftop run only one name resolution thread. This is not recommended.