webkitgtk: patch & disable JIT for x32

It might not be speedy, but it does build now.

(From OE-Core rev: 79f7e215ee7c176f02efafe7359aaa77dbd9430c)

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-sato/webkit/webkitgtk/x32_support.patch

@@ -0,0 +1,22 @@
+From: Daniel Schepler <dschepler@gmail.com>
+Subject: Fix FTBFS in x32
+Bug-Debian: https://bugs.debian.org/700795
+Upstream-Status: Pending
+Signed-off-by: Christopher Larson <chris_larson@mentor.com>
+Index: webkitgtk/Source/WTF/wtf/Platform.h
+===================================================================
+--- webkitgtk.orig/Source/WTF/wtf/Platform.h
++++ webkitgtk/Source/WTF/wtf/Platform.h
+@@ -182,8 +182,12 @@
+ /* 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
++#endif
+ 
+ /* CPU(ARM64) - Apple */
+ #if (defined(__arm64__) && defined(__APPLE__)) || defined(__aarch64__)

meta/recipes-sato/webkit/webkitgtk_2.14.2.bb

@@ -20,6 +20,7 @@ SRC_URI = "http://www.webkitgtk.org/releases/${BPN}-${PV}.tar.xz \
            file://0001-Tweak-gtkdoc-settings-so-that-gtkdoc-generation-work.patch \
            file://0001-WebKitMacros-Append-to-I-and-not-to-isystem.patch \
            file://detect_atomics.patch \
+           file://x32_support.patch \
            "
 
 SRC_URI[md5sum] = "2fe3cadbc546d93ca68a13756c2be015"
@@ -85,6 +86,12 @@ EXTRA_OECMAKE_append_toolchain-clang = " -DUSE_LD_GOLD=OFF "
 # JIT not supported on MIPS either
 EXTRA_OECMAKE_append_mipsarch = " -DENABLE_JIT=OFF "
 
+# JIT not supported on X32
+# An attempt was made to upstream JIT support for x32 in
+# https://bugs.webkit.org/show_bug.cgi?id=100450, but this was closed as
+# unresolved due to limited X32 adoption.
+EXTRA_OECMAKE_append_linux-gnux32 = " -DENABLE_JIT=OFF"
+
 SECURITY_CFLAGS_remove_aarch64 = "-fpie"
 SECURITY_CFLAGS_append_aarch64 = " -fPIE"