The intent is for public target sources to be compiled into consumers
of a target, but that is a no-op for header files. Including the
public headers, which have paths pointing inside the project, causes
an error when generating an export set.
This is necessary to support using cesium-native as submodule in
in asset-pipeline
- `draco` and `sqlite3` are guarded with if target blocks to allow
asset-pipeline to provide their own version of the targets.
- Tests are now a dedicated target that clients don't have to build
- Test sources / headers are now a target property instead of using the $<BUILD_INTERFACE... hack
- Added common include variables in extern/CMakeLists.txt
- Defined `RAPIDJSON_HAS_CXX11_RVALUE_REFS` for move support for RapidJson
- Private include directories are automatically extracted via CMake magic
for use in catch tests
- Globbing is now wrapped in a dedicated function that allows one to use
CONFIGURE_DEPENDS depending on their preferences (defaults to OFF)
to retain the old behavior.