[Mailman-Users] make install error

[Ki Song]

I've installed mailman 2.1.8 and believe that I made a mistake earlier.
I'm trying to reinstall it.

After doing ./configure, I tried to run make install, and here's the error
message I get:

chmod: changing permissions of '/usr/local/mailman/archives/private':
Operation not permitted

The only thing is, I'm logged in as a user that has read/write priveleges
for this folder.

What am I doing wrong?

Ki Song