howdoI reinstall on a working system...same level or uplevel

OK, originally, I configure/maek's/make install'ed. I had and have a working system.....but now I want to either upgrade to a later level of php or re-configure/compile the same release somewhat differently. After configure/compiling in the build directory, I'm ready to install..... What do I do then....do I remove the old code (how?) before doing the make install or does the make install handle that? I have looked through the faq and manual but can find nothing... Thanks in advance... -- ==== Stewart Dean, Unix System Admin, Henderson Computer Resources Center of Bard College, Annandale-on-Hudson, New York 12504 sdean@bard.edu voice: 845-758-7475, fax: 845-758-7035