Assets on Android using CMakeLists

[Devoo]

Hey,
how can I convert this .pro definition:

# Assets
ASSETS_HELP_DATA.files = \
    $$files(resources/help_*.pdf)

android {
    ASSETS_HELP_DATA.path = /assets/help
    INSTALLS += ASSETS_HELP_DATA
}

to CMakeLists.txt?

---

this:

install(FILES ${__assets} DESTINATION "/assets/help")

doesn't work...

@edit
variable '__assets' contains valid values.