[can-not-install] postinst failure running init-db

Binary package hint: irm

Ran into this when I went to install irm in a clean, fully updated Feisty install running under VMWare. Everything goes smoothly until the postinstall script runs and I'm greeted with teh following error:

Setting up irm (1.5.3.1-1.1ubuntu2) ...

Creating config file /etc/irm/database.ini with new version

Creating config file /etc/irm/apache.conf with new version
/var/lib/dpkg/info/irm.postinst: 75: /usr/share/irm/init-db: not found
dpkg: error processing irm (--configure):
 subprocess post-installation script returned error exit status 127
Errors were encountered while processing:
 irm
E: Sub-process /usr/bin/dpkg returned an error code (1)
A package failed to install. Trying to recover:
Setting up irm (1.5.3.1-1.1ubuntu2) ...
/var/lib/dpkg/info/irm.postinst: 75: /usr/share/irm/init-db: not found
dpkg: error processing irm (--configure):
 subprocess post-installation script returned error exit status 127
Errors were encountered while processing:
 irm

After a little poking around, I discovered that while irm depends on php5, /usr/share/irm/init-db (and /usr/share/irm/update-db) both specify /usr/bin/php4 as the interpreter to use. Editing /usr/share/irm/init-db and changing the first line from '#!/usr/bin/php4 -Cq' to '#!/usr/bin/php -Cq' (or alternatively, to '#!/usr/bin/php5 -Cq') and rerunning 'aptitude install irm' allows the postinst routine to run without errors.