Try:
./configure --help | grep explicitlink
(BTW. “–enable-explicitlink --enable-soversion” are quite convenient, but “–enable-rpath” is usually not really needed.)
I think you should also have a look at another two links:
[url]ROOTSYS and linux distribution installation
[url]Release 5.32.03 on Ubuntu 12.04
BTW. Before you try to build your new ROOT, don’t forget to remove all references to any ROOT installations (that you have now) from any “.profile”, “.login”, “.bash*”, “.csh*”, “.tcsh*”, etc. files and then re-login (i.e. “logout” and “login” again so that all ROOT related entries in all environment variables are really gone).