Apple PackageMaker CLI: Is there any way to include Postinstall Actions?

Question

I have a PackageMaker .pmdoc designed in the PackageMaker GUI. The top level package item on the sidebar (above the contents) has two Postinstall Actions. They're "Open File" actions.

When I build the package inside the PackageMaker GUI, the resulting .mpkg includes: Contents/Packages/packagenamePostflight.pkg

But when I build the package with the CLI, the Postflight.pkg is missing.

I built with the CLI using the command:
/Developer/usr/bin/packagemaker --doc package.pmdoc/ --out package.mpkg

At the top of the output, it tells me:
packagemaker[55900:903] Warning: unknown or deprecated action packagemaker[55900:903] Warning: unknown or deprecated action

Google tells me others have encountered this problem in the past, without finding a solution: http://lists.apple.com/archives/Installer-dev/2010/Jan/msg00003.html

Anyone have any ideas besides not using PackageMaker?

Answer 1

You may want to consider abandoning PackageMaker. I just switched to Iceberg and although it has its own quirks, I found it smarter when it dealt with post installation tasks.