AOL Server builds and runs.
ns_cache is included in AOL Server 4.5.2.
AOL Server 4.5 doesn't need ns_cache.
4.5 requires tcl format.
4.5 requires tcl config file format.
Comment out code that breaks in 4.5 for now.
Working with AOL Server 4.5.2.

Same error uploading photo as the AOL Server 3.x:

     error waiting for process to exit: child process
     lost (is SIGCHLD ignored or trapped?)
Present tense is more appropriate for AOL Server bitching.
Sync AOL Server version number with reality.
Revert to previous version.

Once config files were in tcl format, the error that caused me to comment out
these lines went away.
Merge pull request #3 from mbucc/aolserver_v4

Use AOL Server 4.5.2 and tcl 8.6.1.