[CMake] PackageMaker with script for InstallationCheck

[NoRulez]

Hello list,

I found variables to launch custom preflight/postflight scripts with CPACK_PREFLIGHT_SCRIPT and CPACK_POSTFLIGHT_SCRIPT.

Is there also a way to call a custom install check script? For example, I need to know if a specified application is already installed or not. If the application wasn't found then the installer could exit.

Thanks in advance