Summary says it all, these platforms fail to build WebKit.
Created attachment 44470 [details] proposed fix
style-queue ran check-webkit-style on attachment 44470 [details] without any errors.
Comment on attachment 44470 [details] proposed fix > -#if PLATFORM(X86_64) && (PLATFORM(DARWIN) || PLATFORM(LINUX) || PLATFORM(WIN_OS)) > +#if (PLATFORM(X86_64) && PLATFORM(UNIX)) || PLATFORM(IA64) || PLATFORM(ALPHA) || PLATFORM(WIN_OS) > #define WTF_USE_JSVALUE64 1 This will incorrectly define WTF_USE_JSVALUE64 on 32-bit WIN_OS builds.
Created attachment 44475 [details] proposed fix - second try Good catch! Second try.
Landed as 51871.