libtool & DHCP

[Francis Dupont]

I tried to reduce the DHCP tool footprint for CPEs using libtool:
 - run libtoolize
 - add a --with-libtool to configure.ac
 - update Makefile.am files
 - patch cltest.c (or don't build it)

On my Fedora 16 64 bits, stripped binaries so mainly text,

before:
 dhclient -> 1552648
 dhcrelay -> 1465032

after:
 dhclient -> 122968
 dhrelay ->   24256
 libdns ->  1084568
 libdhcp ->  331032

so there is a clear win as soon as the libraries are shared by
two or more tools.

Regards

Francis Dupont <fdupont at isc.org>