CMake helpers
Project-owned CMake modules are placed here as they become necessary. Phase 0 keeps policy in the top-level build so the enabled target graph is easy to audit.
The Phase-1 VideoOut option imports an already verified static SDL build by
absolute path. It never downloads, patches, or executes a dependency during
CMake configuration; orchestration and pin checks live in
tools/build-phase1-videoout.sh.
The installed config exports the core as chimera-gfx::chimera-gfx and the
capability-honest interfaces as
chimera-gfx::chimera-gfx-retroarch-scaffold and
chimera-gfx::chimera-gfx-sdl2-scaffold.