could someone add an uninstall target ?

If I want to clean the installed files I have run make install and then manually go through the list to clean. This should not be necessary.
If it's any help to anyone here is what I needed to do on my system.

rm -rf /usr/local/include/Inventor /usr/local/include/So* /usr/local/share/Coin 
rm -rf /usr/local/lib64/libCoin* /usr/local/lib64/cmake/Coin*
rm /usr/local/bin/coin-config /usr/local/lib64/pkgconfig/Coin.pc
rm -rf /usr/local/lib64/pkgconfig /usr/local/lib64/cmake /usr/local/lib64/bpf # empty

This really ought to cleaned up properly by makefiles.
Thanks.