This fixes issues with building LibreSSL, which is required for the
NixOS tests: https://cmake.org/cmake/help/latest/release/3.19.html#id1
> CMake 3.19.0 compiles source files with the `LANGUAGE` property by
> passing an explicit language flag such as -x c. This is consistent
> with the property’s documented meaning that the source file is written
> in the specified language. However, it can break projects that were
> using the property only to cause the specified language’s compiler to
> be used. This has been reverted to restore behavior from CMake 3.18
> and below.
This reverts commit c778945806.
I believe this is exactly what brings the staging branch into
the right shape after the last merge from master (through staging-next);
otherwise part of staging changes would be lost
(due to being already reachable from master but reverted).
- OpenSSL is evidentally an optional dep. I guess pkg-config found it
before because it was a transitive dep?
- `zstd` and cross-built CMake can get by with a `cmakeMinimal that we
use during bootstrapping, so let's restrict to that.
pkg-config now has a target-sensative wrapper. We shouldn't rebuild
CMake because that wrapper changes. The setup hook should also be a
build time dep.
Fix#99325
I hate the thing too even though I made it, and rather just get rid of
it. But we can't do that yet. In the meantime, this brings us more
inline with autoconf and will make it slightly easier for me to write a
pkg-config wrapper, which we need.
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
The hack of using `crossConfig` to enforce stricter handling of
dependencies is replaced with a dedicated `strictDeps` for that purpose.
(Experience has shown that my punning was a terrible idea that made more
difficult and embarrising to teach teach.)
Now that is is clear, a few packages now use `strictDeps`, to fix
various bugs:
- bintools-wrapper and cc-wrapper
