Merge pull request #1514 from murraystevenson/libfmt #1714

Job	Run time
build (linux-platform24)	18m 47s
build (linux-platform25)	17m 43s
build (macos-arm64-platform25)	12m 21s
build (linux-debug-platform25)	19m 18s
build (windows-platform25)	25m 48s
build (windows-debug-platform25)	23m 3s
	1h 57m 0s

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