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Marc Chevrier requested to merge marc.chevrier/cmake:FindSWIG-enhance-lookup-strategy into master

Also enhance lookup capabilities using VALIDATOR argument. Currently, swig executable naming strategy is a bit odd: For example swig4.0 executable can have version 4.2.0!i. Moreover, not all platforms provide a versioned executable.

So, to pick-up the right executable when multiple versions are available, use find_program(... VALIDATOR ...).

Fixes: #25566 (closed)

Edited by Brad King

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