build/amd64/WebCore/PrivateHeaders/WebCore/AXCoreObject.h:191:50: error: expected identifier before numeric constant
  191 | enum class AccessibilityCurrentState : uint8_t { False, True, Page, Step, Location, Date, Time };
      |                                                  ^~~~~
build/amd64/WebCore/PrivateHeaders/WebCore/AXCoreObject.h:191:50: error: expected '}' before numeric constant

--- webkitgtk-2.53.4/Source/WebCore/accessibility/AXCoreObject.h.old
+++ webkitgtk-2.53.4/Source/WebCore/accessibility/AXCoreObject.h
@@ -188,6 +188,13 @@
     DefaultBehavior,
 };
 
+#if defined(False)
+#undef False
+#endif
+#if defined(True)
+#undef True
+#endif
+
 enum class AccessibilityCurrentState : uint8_t { False, True, Page, Step, Location, Date, Time };
 
 enum class AccessibilityPopupValue : uint8_t {