The tvOS archive failed compiling PunktfunkKit: a recent presenter HDR change
dropped the `#if os(macOS)` guard around the EDR calls and applied them "on all
platforms", but `wantsExtendedDynamicRangeContent`, `CAEDRMetadata`, and
`CAMetalLayer.edrMetadata` are all explicitly unavailable on tvOS.
Wrap the EDR usage (and the makeEDR helper, whose return type is the unavailable
CAEDRMetadata) in `#if !os(tvOS)`. macOS + iOS keep the reference-white-anchored
EDR path unchanged; tvOS now sets only the rgba16Float pixel format + itur_2100_PQ
colour space and lets its compositor tone-map from those. The 0xCE grade is still
cached on tvOS (harmless), it just can't be pushed to the layer there.
tvOS Simulator build: BUILD SUCCEEDED (PunktfunkKit Swift compile, the step that
failed). macOS build + test green (49 tests); iOS compiles clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
enricobuehler
ecec7cfa71