Selfupdate still fails on "readline in /usr/local" after cleanout

[dsmithhfx@…]

Hi,

I can't get port version 2.03 (OSX10.4.11/ppc/G5 tower) to selfupdate, it fails with

make[2]: *** [registry.dylib] Error 1
make[1]: *** [all] Error 1
make: *** [all] Error 1
shell command "cd /opt/local/var/macports/sources/rsync.macports.org/release/base && CC=/usr/bin/cc ./configure --prefix=/opt/local --with-tclpackage=/Library/Tcl --with-install-user=root --with-install-group=admin --with-directory-mode=0755 && make && make install SELFUPDATING=1" returned error 2
DEBUG: Error installing new MacPorts base: shell command failed (see log for details)
    while executing
"macports::selfupdate [array get global_options] base_updated"
Error: /opt/local/bin/port: port selfupdate failed: Error installing new MacPorts base: shell command failed (see log for details)

After some digging through tickets e.g. ​https://trac.macports.org/ticket/11742, it appears that readline may be the culprit. Early in the selfupdate output there appears

--->  MacPorts base is outdated, installing new version 2.3.3
DEBUG: Permissions OK
Warning: Disabling readline support due to readline in /usr/local

Even after completely clearing all instances of *readline" from my /usr directory (so

sudo find /usr -name "*readline*"

returns nothing, and

sudo port -f deactivate readline

I'm really stuck here, running really outdated apache2 etc. Any help appreciated!