[CMake] INTERNAL vs. STATIC cache variables

[Marcel Loose]

Hi all,

Is there a difference in precedence between INTERNAL and STATIC cache
variables?

For example, what happens if I (accidentally) define an INTERNAL cache
variable that is already or will be defined by CMake? Will the STATIC
variable always have precedence? Or am I entering the realm of undefined
behavior?

Best regards,
Marcel Loose.