Yes tdom/unix/config.log does contain the last command line, but it isn't general. Tcl puts it in config.status, not in config.log I also copy the file around when I update to a new version, so a separate file helps me find what I did last.
I compiled Tcl with --enable-64bit as shown above. In AOLserver I don't see any 64bit flags (tcl cc is gcc -pipe) and config.log doesn't seem to do any checking, but the arch is x86_64. Whatever the reason, I didn't need to put the --enable-64bit option when doing configure for tDOM or AOLserver.
