--- a/js/src/wasm/WasmSignalHandlers.cpp	2019-05-16 11:25:13.260881532 +0200
+++ b/js/src/wasm/WasmSignalHandlers.cpp	2019-05-16 11:24:35.164589301 +0200
@@ -243,7 +243,7 @@ using mozilla::DebugOnly;
 // emulation here.
 
 #if defined(__linux__) && defined(__arm__)
-#  define WASM_EMULATE_ARM_UNALIGNED_FP_ACCESS
+// #  define WASM_EMULATE_ARM_UNALIGNED_FP_ACCESS
 #endif
 
 #ifdef WASM_EMULATE_ARM_UNALIGNED_FP_ACCESS