In file included from Unified_cpp_accessible_html0.cpp:29:
In file included from accessible/html/HTMLImageMapAccessible.cpp:14:
In file included from layout/generic/nsImageFrame.h:17:
In file included from ../.build/dist/include/nsDisplayList.h:48:
In file included from ../.build/dist/include/nsCSSRenderingBorders.h:20:
In file included from ../.build/dist/include/gfxUtils.h:23:
In file included from ../.build/dist/include/mozilla/webrender/WebRenderTypes.h:11:
In file included from ../.build/dist/include/mozilla/webrender/webrender_ffi.h:103:
../.build/dist/include/mozilla/webrender/webrender_ffi_generated.h:24:33: error: redefinition of 'ROOT_CLIP_CHAIN'
constexpr static const uint64_t ROOT_CLIP_CHAIN = ~0;
                                ^
../.build/dist/include/mozilla/webrender/webrender_ffi.h:75:16: note: previous definition is here
const uint64_t ROOT_CLIP_CHAIN = ~0;
               ^

--- gfx/webrender_bindings/webrender_ffi.h.orig	2022-06-08 21:06:36 UTC
+++ gfx/webrender_bindings/webrender_ffi.h
@@ -72,8 +72,6 @@ using WrPipelineIdEpochs = nsTArray<WrPipelineIdAndEpo
 struct WrPipelineIdAndEpoch;
 using WrPipelineIdEpochs = nsTArray<WrPipelineIdAndEpoch>;
 
-const uint64_t ROOT_CLIP_CHAIN = ~0;
-
 }  // namespace wr
 }  // namespace mozilla