In file included from /app/webkit/WebKitBuild/Release/WebCore/DerivedSources/unified-sources/UnifiedSource-3c72abbe-44.cpp:6:
/app/webkit/Source/WebCore/platform/graphics/gtk/SystemFontDatabaseGTK.cpp:57:115: error: non-constant-expression cannot be narrowed from type 'int' to 'float' in initializer list [-Wc++11-narrowing]
    SystemFontShorthandInfo result { AtomString::fromLatin1(pango_font_description_get_family(pangoDescription)), size, normalWeightValue() };
                                                                                                                  ^~~~
/app/webkit/Source/WebCore/platform/graphics/gtk/SystemFontDatabaseGTK.cpp:57:115: note: insert an explicit cast to silence this issue
    SystemFontShorthandInfo result { AtomString::fromLatin1(pango_font_description_get_family(pangoDescription)), size, normalWeightValue() };
                                                                                                                  ^~~~
                                                                                                                  static_cast<float>( )
/app/webkit/Source/WebCore/platform/graphics/gtk/SystemFontDatabaseGTK.cpp:36:72: warning: unused parameter 'fontShorthand' [-Wunused-parameter]
auto SystemFontDatabase::platformSystemFontShorthandInfo(FontShorthand fontShorthand) -> SystemFontShorthandInfo
                                                                       ^
1 warning and 1 error generated.