Fix warnings on newer CMake about FetchContent

H-uru / Plasma

Cyan Worlds's Plasma game engine

http://h-uru.github.io/Plasma/

GNU General Public License v3.0

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Fix warnings on newer CMake about FetchContent #1565

Closed dpogue closed 4 months ago

dpogue commented 4 months ago

This causes it to use the timestamp of the downloaded zip file rather than the timestamps from within the zip file, to ensure that a newer download is always compiled regardless of whether existing extracted files have newer timestamps.