Bug 281025 – Build failure: Source/WebCore/rendering/RenderLayer.cpp:1272:37: error: no match for ‘operator==’ (operand types are ‘unsigned char:2’ and ‘WebCore::RepaintStatus’)

• Status: RESOLVED
• Resolution: DUPLICATE
• Component: WPE WebKit

Building WPEWebKit on main (f2e86ac9ad2cc2e30337a9e95e7978d6fd2c995e), and I get the following error:

] ninja   
[0/2] Re-checking globbed directories...
[1/2] Re-running CMake...
-- The CMake build type is: Debug
-- Enabling ccache: Setting ccache prefix for compiler.
-- Linker variant in use: BFD 
--   Linker supports thin archives - TRUE
--   Linker supports split debug info - TRUE
--   Linker supports --gdb-index - FALSE
--   Linker supports --disable-new-dtags - TRUE
--   Linker supports --gc-sections - TRUE
-- Archiver variant in use: BFD
--   Archiver supports thin archives - TRUE
-- Found hb-features.h
-- Found the following HarfBuzz libraries:
--  HarfBuzz (required): /usr/lib64/libharfbuzz.so
--  ICU (required): /usr/lib64/libharfbuzz-icu.so
-- Found the following WebP libraries:
--  WebP (required): /usr/lib64/libwebp.so
--  demux (required): /usr/lib64/libwebpdemux.so
-- Found glib-compile-resources (required): /usr/bin/glib-compile-resources (2.78.6)
-- Disabling USE_GSTREAMER_WEBRTC since ENABLE_WEB_RTC is disabled.
-- Found the following WOFF2 libraries:
--  WOFF2 (required): /usr/lib64/libwoff2common.so
--  dec (required): /usr/lib64/libwoff2dec.so
-- Checking for module 'gstreamer-full-1.0>=1.17.0'
--   Package 'gstreamer-full-1.0' not found
-- Platform-specific CMakeLists not found: /home/user/Code/WebKit/Source/bmalloc/PlatformWPE.cmake
-- Using platform-specific CMakeLists: /home/user/Code/WebKit/Source/WTF/wtf/PlatformWPE.cmake
-- Copying generate-unified-source-bundles.rb to: /home/user/Code/WebKit/build/WTF/Scripts
-- Using platform-specific CMakeLists: /home/user/Code/WebKit/Source/JavaScriptCore/PlatformWPE.cmake
-- Enabling asm postprocessing
-- Using source list file: Sources.txt
-- Using source list file: inspector/remote/SourcesGLib.txt
-- Using platform-specific CMakeLists: /home/user/Code/WebKit/Source/JavaScriptCore/shell/PlatformWPE.cmake
-- Using platform-specific CMakeLists: /home/user/Code/WebKit/Source/ThirdParty/ANGLE/PlatformWPE.cmake
-- Found the following WebP libraries:
--  WebP (required): /usr/lib64/libwebp.so
--  mux (required): /usr/lib64/libwebpmux.so
-- Using platform-specific CMakeLists: /home/user/Code/WebKit/Source/WebInspectorUI/PlatformWPE.cmake
-- Using platform-specific CMakeLists: /home/user/Code/WebKit/Source/WebCore/PAL/pal/PlatformWPE.cmake
-- Using platform-specific CMakeLists: /home/user/Code/WebKit/Source/WebCore/PlatformWPE.cmake
-- Using source list file: Sources.txt
-- Using source list file: platform/SourcesAdwaita.txt
-- Using source list file: platform/SourcesSkia.txt
-- Using source list file: platform/SourcesGCrypt.txt
-- Using source list file: platform/SourcesGStreamer.txt
-- Using source list file: platform/SourcesSoup.txt
-- Using source list file: platform/SourcesNicosia.txt
-- Using source list file: SourcesWPE.txt
-- Using source list file: platform/SourcesGLib.txt
-- Using platform-specific CMakeLists: /home/user/Code/WebKit/Source/WebKit/PlatformWPE.cmake
-- Using source list file: Sources.txt
-- Using source list file: Platform/Sources.txt
-- Using source list file: SourcesWPE.txt
-- Using platform-specific CMakeLists: /home/user/Code/WebKit/Source/WebDriver/PlatformWPE.cmake
-- Using platform-specific CMakeLists: /home/user/Code/WebKit/Source/PlatformWPE.cmake
-- Using platform-specific CMakeLists: /home/user/Code/WebKit/Tools/PlatformWPE.cmake
-- Enabled features:
--  ENABLE_BUBBLEWRAP_SANDBOX ..................... ON
--  ENABLE_DOCUMENTATION                            ON
--  ENABLE_ENCRYPTED_MEDIA ........................ OFF
--  ENABLE_GAMEPAD                                  ON
--  ENABLE_INTROSPECTION .......................... ON
--  ENABLE_JOURNALD_LOG                             OFF
--  ENABLE_PDFJS .................................. ON
--  ENABLE_SPEECH_SYNTHESIS                         OFF
--  ENABLE_VIDEO .................................. ON
--  ENABLE_WEBDRIVER                                ON
--  ENABLE_WEB_AUDIO .............................. ON
--  ENABLE_WPE_1_1_API                              OFF
--  ENABLE_WPE_PLATFORM ........................... ON
--  ENABLE_WPE_PLATFORM_DRM                         ON
--  ENABLE_WPE_PLATFORM_HEADLESS .................. ON
--  ENABLE_WPE_PLATFORM_WAYLAND                     ON
--  ENABLE_WPE_QT_API ............................. ON
--  ENABLE_XSLT                                     ON
--  USE_ATK ....................................... ON
--  USE_AVIF                                        ON
--  USE_GBM ....................................... ON
--  USE_GSTREAMER_TRANSCODER                        ON
--  USE_GSTREAMER_WEBRTC .......................... OFF
--  USE_JPEGXL                                      ON
--  USE_LCMS ...................................... ON
--  USE_LIBBACKTRACE                                OFF
--  USE_LIBDRM .................................... ON
--  USE_QT6                                         ON
--  USE_WOFF2 ..................................... ON
-- Configuring done (2.7s)
-- Generating done (4.5s)
-- Build files have been written to: /home/user/Code/WebKit/build
[0/4] Re-checking globbed directories...
[1321/4634] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-043dd90b-10.cpp.o
FAILED: Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-043dd90b-10.cpp.o 
/usr/bin/ccache /usr/bin/c++ -DBITMAP_TEXTURE_POOL_MAX_SIZE_IN_MB=80 -DBUILDING_WEBKIT=1 -DBUILDING_WITH_CMAKE=1 -DBUILDING_WPE__=1 -DBUILDING_WebCore -DBWRAP_EXECUTABLE=\"/usr/bin/bwrap\" -DDBUS_PROXY_EXECUTABLE=\"/usr/bin/xdg-dbus-proxy\" -DGETTEXT_PACKAGE=\"WPE\" -DHAVE_CONFIG_H=1 -DJSC_GLIB_API_ENABLED -DPAS_BMALLOC=1 -DSK_ASSUME_GL=0 -DSK_ASSUME_GL_ES=1 -DSK_ASSUME_WEBGL=0 -DSK_DISABLE_LEGACY_GL_MAKE_NATIVE_INTERFACE -DSK_DISABLE_LEGACY_IMAGE_READBUFFER -DSK_DISABLE_LEGACY_INIT_DECODERS -DSK_DISABLE_LEGACY_PNG_WRITEBUFFER -DSK_DISABLE_TRACING -DSK_DISABLE_WEBGL_INTERFACE -DSK_ENABLE_PRECOMPILE -DSK_R32_SHIFT=16 -DSK_RELEASE -DSTATICALLY_LINKED_WITH_JavaScriptCore -DSTATICALLY_LINKED_WITH_PAL -DSTATICALLY_LINKED_WITH_WTF -DSTATICALLY_LINKED_WITH_bmalloc -DUSE_SYSTEM_EGL -I/home/user/Code/WebKit/build -I/home/user/Code/WebKit/build/WebCore/DerivedSources -I/home/user/Code/WebKit/Source/WebCore -I/home/user/Code/WebKit/Source/WebCore/Modules/ShapeDetection 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-I/home/user/Code/WebKit/build/ANGLE/Headers -I/home/user/Code/WebKit/Source/ThirdParty/skia -I/home/user/Code/WebKit/build/Skia/Headers -I/home/user/Code/WebKit/build/JavaScriptCore/Headers -I/home/user/Code/WebKit/build/JavaScriptCore/PrivateHeaders -I/home/user/Code/WebKit/build/JavaScriptCoreGLib/Headers -I/home/user/Code/WebKit/build/JavaScriptCoreGLib/DerivedSources -I/home/user/Code/WebKit/build/WTF/Headers -I/home/user/Code/WebKit/Source/ThirdParty/libsysprof-capture -I/home/user/Code/WebKit/build/bmalloc/Headers -I/home/user/Code/WebKit/build/PAL/Headers -isystem /usr/include/gstreamer-1.0 -isystem /usr/lib64/libffi/include -isystem /usr/include/glib-2.0 -isystem /usr/lib64/glib-2.0/include -isystem /usr/include/orc-0.4 -isystem /usr/lib64/gstreamer-1.0/include -isystem /usr/include/libsoup-3.0 -isystem /usr/include/gio-unix-2.0 -isystem /usr/include/libmount -isystem /usr/include/blkid -isystem /usr/include/libxml2 -isystem /usr/include/harfbuzz -isystem /usr/include/avif -isystem /usr/include/wpe-1.0 -isystem /usr/include/libdrm -fdiagnostics-color=always -Wextra -Wall -pipe -fmax-errors=20 -Wno-odr -Wno-stringop-overread -Wno-stringop-overflow -Wno-nonnull -Wno-array-bounds -Wno-expansion-to-defined -Wno-noexcept-type -Wno-psabi -Wno-misleading-indentation -Wno-maybe-uninitialized -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -fasynchronous-unwind-tables -fno-strict-aliasing -fno-exceptions -fno-rtti -fcoroutines -ffunction-sections -fdata-sections -g -std=c++23 -fPIC -fvisibility=hidden -fvisibility-inlines-hidden -DHAVE_HB_FEATURES_H -DHWY_SHARED_DEFINE -DAVIF_DLL -DWPE_ENABLE_XKB=1 -MD -MT Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-043dd90b-10.cpp.o -MF Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-043dd90b-10.cpp.o.d -o Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-043dd90b-10.cpp.o -c /home/user/Code/WebKit/build/WebCore/DerivedSources/unified-sources/UnifiedSource-043dd90b-10.cpp
In file included from /home/user/Code/WebKit/build/WTF/Headers/wtf/Platform.h:31,
                 from /home/user/Code/WebKit/Source/WebCore/config.h:26,
                 from /home/user/Code/WebKit/Source/WebCore/rendering/RenderHTMLCanvas.cpp:26,
                 from /home/user/Code/WebKit/build/WebCore/DerivedSources/unified-sources/UnifiedSource-043dd90b-10.cpp:1:
/home/user/Code/WebKit/Source/WebCore/rendering/RenderLayer.cpp: In member function ‘void WebCore::RenderLayer::recursiveUpdateLayerPositions(WebCore::RenderElement::LayoutIdentifier, WTF::OptionSet<UpdateLayerPositionsFlag>, CanUseSimplifiedRepaintPass)’:
/home/user/Code/WebKit/Source/WebCore/rendering/RenderLayer.cpp:1272:37: error: no match for ‘operator==’ (operand types are ‘unsigned char:2’ and ‘WebCore::RepaintStatus’)
 1272 |         LAYER_POSITIONS_ASSERT(dest == source);
      |                                     ^~
/home/user/Code/WebKit/build/WTF/Headers/wtf/Compiler.h:396:41: note: in definition of macro ‘UNLIKELY’
  396 | #define UNLIKELY(x) __builtin_expect(!!(x), 0)
      |                                         ^
/home/user/Code/WebKit/Source/WebCore/rendering/RenderLayer.cpp:1110:48: note: in expansion of macro ‘ASSERT’
 1110 | #define LAYER_POSITIONS_ASSERT(assertion, ...) ASSERT(assertion, __VA_ARGS__)
      |                                                ^~~~~~
/home/user/Code/WebKit/Source/WebCore/rendering/RenderLayer.cpp:1272:9: note: in expansion of macro ‘LAYER_POSITIONS_ASSERT’
 1272 |         LAYER_POSITIONS_ASSERT(dest == source);
      |         ^~~~~~~~~~~~~~~~~~~~~~
/home/user/Code/WebKit/Source/WebCore/rendering/RenderLayer.cpp:1273:5: note: in expansion of macro ‘UPDATE_OR_VERIFY_STATE_BIT’
 1273 |     UPDATE_OR_VERIFY_STATE_BIT(m_repaintStatus, RepaintStatus::NeedsNormalRepaint);
      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~
[1334/4634] Building CXX object Source/WebCore/CMakeFiles/WebCore.dir/__/__/WebCore/DerivedSources/unified-sources/UnifiedSource-043dd90b-21.cpp.o

[Michael Catanzaro]

*** This bug has been marked as a duplicate of bug 281056 ***