From: Iain Lane <iain.lane@canonical.com>
Description: Fix arm64 build
 Add AArch64 support in Platform.h
 Don't use COMPARE_AND_SWAP on arm64; it produces invalid asm.
 Fix some other areas where disabling JIT doesn't work.
Bug-Debian: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=752735
Forwarded: no
--- a/modules/web/src/main/native/Source/WTF/wtf/Platform.h
+++ b/modules/web/src/main/native/Source/WTF/wtf/Platform.h
@@ -179,6 +179,9 @@
 /* CPU(ARM64) - Apple */
 #if (defined(__arm64__) && defined(__APPLE__)) || defined(__aarch64__)
 #define WTF_CPU_ARM64 1
+#if defined(__AARCH64BE__)
+#define WTF_CPU_BIG_ENDIAN 1
+#endif
 #endif
 
 /* CPU(ARM) - ARM, any version*/
--- a/modules/web/src/main/native/Source/WebCore/platform/graphics/transforms/TransformationMatrix.cpp
+++ b/modules/web/src/main/native/Source/WebCore/platform/graphics/transforms/TransformationMatrix.cpp
@@ -1035,7 +1035,7 @@
 // this = mat * this.
 TransformationMatrix& TransformationMatrix::multiply(const TransformationMatrix& mat)
 {
-#if CPU(ARM64)
+#if CPU(ARM64) && PLATFORM(IOS)
     double* leftMatrix = &(m_matrix[0][0]);
     const double* rightMatrix = &(mat.m_matrix[0][0]);
     asm volatile (