--- webkitgtk-2.4.11/Source/JavaScriptCore/assembler/MacroAssemblerX86Common.h.orig	2016-11-10 19:20:32 +0300
+++ webkitgtk-2.4.11/Source/JavaScriptCore/assembler/MacroAssemblerX86Common.h	2016-11-10 19:33:29 +0300
@@ -1542,7 +1542,8 @@
 #if OS(MAC_OS_X)
 
     // All X86 Macs are guaranteed to support at least SSE2,
-    static bool isSSE2Present()
+    //static 
+    bool isSSE2Present()
     {
         return true;
     }
@@ -1555,7 +1556,8 @@
         NoSSE2
     };
 
-    static bool isSSE2Present()
+    //static 
+    bool isSSE2Present()
     {
         if (s_sse2CheckState == NotCheckedSSE2) {
             // Default the flags value to zero; if the compiler is
@@ -1595,7 +1597,8 @@
 
     // On x86-64 we should never be checking for SSE2 in a non-debug build,
     // but non debug add this method to keep the asserts above happy.
-    static bool isSSE2Present()
+    //static 
+    bool isSSE2Present()
     {
         return true;
     }
--- webkitgtk-2.4.11/Source/JavaScriptCore/runtime/VM.cpp.orig	2016-11-10 16:39:54 +0300
+++ webkitgtk-2.4.11/Source/JavaScriptCore/runtime/VM.cpp	2016-11-10 19:37:54 +0300
@@ -123,6 +123,9 @@
 // just checks for ENABLE(JIT) or ENABLE(YARR_JIT) with this premise in mind.
 
 #if ENABLE(ASSEMBLER)
+
+extern bool isSSE2Present(); //FIXME: now made non-static in Source/JavaScriptCore/assembler/MacroAssemblerX86Common.h
+
 static bool enableAssembler(ExecutableAllocator& executableAllocator)
 {
     if (!Options::useJIT() && !Options::useRegExpJIT())
@@ -134,6 +137,9 @@
         return false;
     }
 
+    if (!isSSE2Present()) 
+	    return false;
+
 #if USE(CF)
 #if COMPILER(GCC) && !COMPILER(CLANG)
     // FIXME: remove this once the EWS have been upgraded to LLVM.