www/firefox: unbreak with JIT (e.g. on powerpc*, sparc64)

In file included from js/src/builtin/RegExp.cpp:22:
In file included from js/src/jsobjinlines.h:33:
In file included from js/src/vm/TypeInference-inl.h:19:
In file included from js/src/jit/BaselineJIT.h:18:
In file included from js/src/jit/MacroAssembler.h:28:
js/src/jit/none/MacroAssembler-none.h:51:27: error: chosen constructor is
      explicit in copy-initialization
static constexpr Register WasmIonExitTlsReg = { Registers::invalid_reg };
                          ^                   ~~~~~~~~~~~~~~~~~~~~~~~~~~
js/src/jit/Registers.h:39:24: note: explicit constructor declared here
    explicit constexpr Register(Encoding e)
                       ^
1 error generated.

1 files changed, 61 insertions, 0 deletions

diff --git a/www/firefox/files/patch-bug1376268 b/www/firefox/files/patch-bug1376268
new file mode 100644
index 000000000000..716bdb42e658
--- /dev/null
+++ b/www/firefox/files/patch-bug1376268
@@ -0,0 +1,61 @@
+commit ec31e574ed81
+Author: Petr Sumbera <petr.sumbera@oracle.com>
+Date:   Mon Jun 26 06:54:12 2017 -0700
+
+    Bug 1376268 - Fix Spidermonkey build with no jit backend; r=bbouvier
+    
+    MozReview-Commit-ID: DgANwcf8oUh
+    
+    --HG--
+    extra : amend_source : 1c3efbe975e93ee996e6b84d3fc073781740156d
+---
+ js/src/jit/ExecutableAllocator.h      | 2 +-
+ js/src/jit/none/MacroAssembler-none.h | 8 ++++----
+ 2 files changed, 5 insertions(+), 5 deletions(-)
+
+diff --git js/src/jit/ExecutableAllocator.h js/src/jit/ExecutableAllocator.h
+index 570a25ff0dc3..d106b31ba906 100644
+--- js/src/jit/ExecutableAllocator.h
++++ js/src/jit/ExecutableAllocator.h
+@@ -219,7 +219,7 @@ class ExecutableAllocator
+ 
+     static void poisonCode(JSRuntime* rt, JitPoisonRangeVector& ranges);
+ 
+-#if defined(JS_CODEGEN_X86) || defined(JS_CODEGEN_X64) || defined(JS_SIMULATOR_ARM64)
++#if defined(JS_CODEGEN_X86) || defined(JS_CODEGEN_X64) || defined(JS_SIMULATOR_ARM64) || defined(JS_CODEGEN_NONE)
+     static void cacheFlush(void*, size_t)
+     {
+     }
+diff --git js/src/jit/none/MacroAssembler-none.h js/src/jit/none/MacroAssembler-none.h
+index 9a40ec8a8f64..71ddca8b9f1c 100644
+--- js/src/jit/none/MacroAssembler-none.h
++++ js/src/jit/none/MacroAssembler-none.h
+@@ -48,7 +48,7 @@ static constexpr Register WasmIonExitRegE1 { Registers::invalid_reg };
+ 
+ static constexpr Register WasmIonExitRegReturnData { Registers::invalid_reg };
+ static constexpr Register WasmIonExitRegReturnType { Registers::invalid_reg };
+-static constexpr Register WasmIonExitTlsReg = { Registers::invalid_reg };
++static constexpr Register WasmIonExitTlsReg { Registers::invalid_reg };
+ static constexpr Register WasmIonExitRegD0 { Registers::invalid_reg };
+ static constexpr Register WasmIonExitRegD1 { Registers::invalid_reg };
+ static constexpr Register WasmIonExitRegD2 { Registers::invalid_reg };
+@@ -153,6 +153,8 @@ class Assembler : public AssemblerShared
+ 
+     static uintptr_t GetPointer(uint8_t*) { MOZ_CRASH(); }
+ 
++    static bool HasRoundInstruction(RoundingMode) { return false; }
++
+     void verifyHeapAccessDisassembly(uint32_t begin, uint32_t end,
+                                      const Disassembler::HeapAccess& heapAccess)
+     {
+@@ -196,9 +198,7 @@ class MacroAssemblerNone : public Assembler
+     static bool SupportsSimd() { return false; }
+     static bool SupportsUnalignedAccesses() { return false; }
+ 
+-    static bool HasRoundInstruction(RoundingMode) { return false; }
+-
+-    void executableCopy(void*, bool) { MOZ_CRASH(); }
++    void executableCopy(void*, bool = true) { MOZ_CRASH(); }
+     void copyJumpRelocationTable(uint8_t*) { MOZ_CRASH(); }
+     void copyDataRelocationTable(uint8_t*) { MOZ_CRASH(); }
+     void copyPreBarrierTable(uint8_t*) { MOZ_CRASH(); }