[CMake] Calling of find_package from function

[Andrey Upadyshev]

Hello!

I'm writing a wrapper around find_package so I call find_package from my
own function. I found it's near impossible because all the variables set by
finders remain in the scope of my wrapper function, rather than in the
caller's scope. Is there any way to force find_package to set all variables
in my function caller's scope? I.e. something like find_package(...
PARENT_SCOPE)?

Thank you,
Andrey
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