I'm not distributing any binaries anymore, you have to compile this
yourself. Depending upon what platform you are on, this means you
may also have to compile shapelib yourself. But before you shed crocodile
tears and start tearing out your hair, this isn't all that hard. If you
use Linux, there may be pre-compiled packages such as RPMs available;
you will need to consult your local package management system. If you
can forgive a shameless plug, Mandriva Linux makes this a breeze...
But anyway, if you can't find any RPMs, just grab the source code from
http://dl.maptools.org/dl/shapelib/