cmake on darwin now depends on the SystemConfiguration framework.
Support for this has not yet been added to our bootstrapping.
We need to decide how to go further. As this is blocking staging-next
it is reverted.
This reverts commit 29bbaa1489.
Also removing a comment that instructs maintainers to cross-check
the hash with one that is posted upstream, because as @lilyball
reasoned:
"I'm not really sure what the benefit of comparing the hash is; if the
download is tampered with, the hash is served from the same site and
would presumably be tampered with as well, and the download is done over
https and declares its Content-Length so there's no risk of truncation
(which would cause the file to fail to unpack anyway)"
Fixes missing CoreFoundation declarations since bump to 3.19.3,
e.g. `error: unknown type name 'CFUUIDRef'`
ApplicationServices.h transitively includes CoreFoundation.h, but as we
patch ApplicationServices out of CMake, the CF symbols were not visible.
Previously this was not a concern, as they were not needed until
d250b67722
cf-private is not necessary here. cmake just needs the CoreFoundation
framework to be used. swift-corefoundation seems to work fine in this case.
/cc @lnl7
