From: Daniel Schepler <dschepler@gmail.com>
Subject: Fix FTBFS in x32
Bug-Debian: https://bugs.debian.org/700795
Index: webkitgtk/Source/WTF/wtf/Platform.h
===================================================================
--- webkitgtk.orig/Source/WTF/wtf/Platform.h
+++ webkitgtk/Source/WTF/wtf/Platform.h
@@ -179,7 +179,11 @@
 /* CPU(X86_64) - AMD64 / Intel64 / x86_64 64-bit */
 #if   defined(__x86_64__) \
     || defined(_M_X64)
+#ifdef __ILP32__
+#define WTF_CPU_X86_64_32 1
+#else
 #define WTF_CPU_X86_64 1
+#endif
 #define WTF_CPU_X86_SSE2 1
 #define WTF_CPU_KNOWN 1
 #endif
--- webkitgtk-2.20.0/Source/bmalloc/bmalloc/Gigacage.h~	2018-02-19 08:45:33.000000000 +0100
+++ webkitgtk-2.20.0/Source/bmalloc/bmalloc/Gigacage.h	2018-03-25 22:11:46.796222047 +0200
@@ -56,7 +56,7 @@
 #define STRING_GIGACAGE_MASK GIGACAGE_SIZE_TO_MASK(STRING_GIGACAGE_SIZE)
 
 #if ((BOS(DARWIN) || BOS(LINUX)) && \
-    (BCPU(X86_64) || (BCPU(ARM64) && !defined(__ILP32__) && (!BPLATFORM(IOS) || __IPHONE_OS_VERSION_MIN_REQUIRED >= 110300))))
+    ((BCPU(X86_64) && !defined(__ILP32__)) || (BCPU(ARM64) && !defined(__ILP32__) && (!BPLATFORM(IOS) || __IPHONE_OS_VERSION_MIN_REQUIRED >= 110300))))
 #define GIGACAGE_ENABLED 1
 #else
 #define GIGACAGE_ENABLED 0