pkg installers skip "Destination Select" page

[marcoesters]

pkg installers created by constructor skip the "Destination Select" page, which causes the installer to try and install into /, which MacOS luckily prohibits. The resulting error message is misleading: it says that the package is not compatible with the MacOS version.

This is a known problem with pkg installers. See, e.g., these stackoverflow posts:

• https://stackoverflow.com/questions/4647416/mac-packagemaker-destination-select-step-a-skipping-boption-permanently-disa
• https://stackoverflow.com/questions/11487596/making-macos-installer-packages-which-are-developer-id-ready/11487658#11487658

The problem is that this isn't reproducible. So far, this issue appeared on MacOS 12 and 13 (osx-arm64), but not all. It's not even consistent with the same version. I have even seen that the same installer works at first and then stopped working on the same machine (I have never seen it suddenly start working though).

We cannot solve the bug in pkgutil, but maybe we can find a workaround.