This involves copying the correct source file to generate the magic
symbols (the one for SwiftCore would not work here), and listening to
the backdeployment configuration of Core.
Take the chance to add hooks for vendor overrides.
Addresses rdar://156436695
The expected install locations for the SwiftCoreConfig.cmake and
SwiftCoreTargets.cmake file was inconsistent between the build directory
and the install location. Making everything consistent across install
locations. In both cases, the files are installed under
`./cmake/SwiftCore`. This is one of the formats that `find_package` uses
to automatically search for package config files so that we can avoid
passing `SwiftCore_DIR` to all sub-projects.
This is loaded by the CMake package configuration so that you can add
cross-package dependencies. Adjust the path so that the lookup succeeds
on all targets.
Starting to work on a full installation story for the Swift runtimes.
This involves generating the SwiftCoreConfig cmake files to allow
importing the just-built runtimes into the overlays and supplemental
libraries, setting up the flags appropriately for the given SwiftCore
build configuration.
This also separates out the development and runtime components to allow
installing just the runtimes without the headers.
Component List:
- SwiftCore_runtime
The runtime libraries that are required for running code.
- SwiftCore_development
The interface with the runtime libraries that are required for
building code against the runtimes.
- SwiftCore_cmake
Files for interfacing CMake projects with the built runtimes.
This includes the target list and flags needed to use the targets
built by the specific configuration used to build the runtime
libraries.
These files are used for mapping flags, definitions, and locations
into the overlay libraries and supplemental libraries.
This adds install commands for the object libraries contributing to
libswiftCore so that they are represented in SwiftCoreTargets.cmake.
Object libraries do not contribute anything to the files actually
installed.
