"Require Administrative Privileges" not delegating authentication

[deadprogram]

Attempting to execute an osx installer from within a Platypus script like this:

installer -verbose -pkg "/Volumes/Qt 4.7.3/Qt.mpkg" -target /

returns the following:
installer: This package requires authentication to install

This happens even when "Require Administrative Privileges" is checked. It would appear that perhaps the authentication is not being delegated as expected by the STPrivilegedTask class.

Any suggestions?

[sveinbjornt]

STPrivilegedTask is working just fine. But it uses Apple's Security Framework, which in turn uses complex and not fully publicly documented privilege escalation. Not everything you could do as a sudo'd user seems to work. Yours is the latest of many such reports I've received over the years.

But as things stand, there is no other approved way of "running a tool as admin".