Linux build fails

[JoakimCh]

error: could not build C module 'CFFmpeg'
error: use of undeclared identifier 'AV_CH_LAYOUT_NATIVE'

[gigq]

This happens on macos 15.2 as well:

SwiftFFmpeg/Sources/CFFmpeg/avutil_shim.h:19:55: error: use of undeclared identifier 'AV_CH_LAYOUT_NATIVE'
17 | 
18 | /* Audio channel layout */
19 | const uint64_t swift_AV_CH_LAYOUT_NATIVE            = AV_CH_LAYOUT_NATIVE;
   |                                                       `- error: use of undeclared identifier 'AV_CH_LAYOUT_NATIVE'
20 | const uint64_t swift_AV_CH_LAYOUT_MONO              = AV_CH_LAYOUT_MONO;
21 | const uint64_t swift_AV_CH_LAYOUT_STEREO            = AV_CH_LAYOUT_STEREO;

SwiftFFmpeg/Sources/SwiftFFmpeg/AVBitStreamFilter.swift:8:8: error: could not build Objective-C module 'CFFmpeg'
  6 | //
  7 | 
  8 | import CFFmpeg
    |        `- error: could not build Objective-C module 'CFFmpeg'
  9 | 
 10 | // MARK: - AVBitStreamFilter