[Bug 58155] Use space-saving APFS clones instead of copying file data blocks to each WINEPREFIX on macOS

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58155

--- Comment #7 from ToastyBug  ---
Someone mentioned on Linux Stack Exchange that in GNU coreutils 9.4,
CoW-by-default fails for macOS when overwriting files, and that you should call
`/bin/cp -c` instead of plain `cp -c` as a workaround

https://unix.stackexchange.com/questions/311536/cp-reflink-auto-for-macos-x/...

Also see the GNU coreutils documentation:
> `--reflink=auto`: If the copy-on-write operation is not supported then fall back to the standard copy behavior. This is the default if no --reflink option is given.

https://www.gnu.org/software/coreutils/manual/html_node/cp-invocation.html