[CMake] Does find_library check that a found library does in fact link?

[Clifford Yapp]

I've run into a situation where find_library is returning a symlink:

/usr/lib/libblah.so -> libblah.so.1

 but libblah.so.1 does not actually exist (e.g. the symlink is bad).

Is there an option I can set to have find_library ensure that a found
library file is valid and links?

Cheers,
CY
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