Building 4.6.2

[Paul Marwick <paulm waitrose com>]

Just tried to build 4.6.2. However, I get this error as soon as I start 
configure:

t-61vl:/~/hold/mc-4.6.2
tooth:$ ./configure --prefix=/usr --with-screen-slang
configure: error: cannot find install-sh or install.sh in config "."/config

:) I'm not bad at building packages, but I have no idea how to fix the 
configure script. What do I need to do to get configure to work?

Thanks in advance....

paul