Seth R. Johnson 1ea05cd456 macos: fewer calls to sw_vers (#29997) ... In a typical call to spack, the OperatingSystem gets instantiated multiple times. For macOS, each one requires a call to `sw_vers`, which is done through the Executable helper class. Memoizing reduces the call count from "spac spec" from three to one.		2022-04-11 09:31:24 +02:00
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spack	macos: fewer calls to sw_vers (#29997)	2022-04-11 09:31:24 +02:00