2 files changed, 40 insertions, 22 deletions

diff --git a/js/src/moz.build b/js/src/moz.build
index e7832709d..3c4093ade 100644
--- a/js/src/moz.build
+++ b/js/src/moz.build
@@ -113,6 +113,7 @@ DIRS += [
     'perf',
     'proxy',
     'threading',
+    'wasm',
 ]
 
 if CONFIG['JS_BUNDLED_EDITLINE']:
@@ -201,28 +202,6 @@ SOURCES += [
     'vm/Value.cpp',
     'vm/WeakMapPtr.cpp',
     'vm/Xdr.cpp',
-    'wasm/AsmJS.cpp',
-    'wasm/WasmBaselineCompile.cpp',
-    'wasm/WasmBinaryFormat.cpp',
-    'wasm/WasmBinaryIterator.cpp',
-    'wasm/WasmBinaryToAST.cpp',
-    'wasm/WasmBinaryToExperimentalText.cpp',
-    'wasm/WasmBinaryToText.cpp',
-    'wasm/WasmCode.cpp',
-    'wasm/WasmCompartment.cpp',
-    'wasm/WasmCompile.cpp',
-    'wasm/WasmFrameIterator.cpp',
-    'wasm/WasmGenerator.cpp',
-    'wasm/WasmInstance.cpp',
-    'wasm/WasmIonCompile.cpp',
-    'wasm/WasmJS.cpp',
-    'wasm/WasmModule.cpp',
-    'wasm/WasmSignalHandlers.cpp',
-    'wasm/WasmStubs.cpp',
-    'wasm/WasmTable.cpp',
-    'wasm/WasmTextToBinary.cpp',
-    'wasm/WasmTextUtils.cpp',
-    'wasm/WasmTypes.cpp'
 ]
 
 # jsarray.cpp and jsatom.cpp cannot be built in unified mode because
diff --git a/js/src/wasm/moz.build b/js/src/wasm/moz.build
new file mode 100644
index 000000000..6a47df322
--- /dev/null
+++ b/js/src/wasm/moz.build
@@ -0,0 +1,39 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+include('../js-config.mozbuild')
+include('../js-cxxflags.mozbuild')
+
+FINAL_LIBRARY = "js"
+
+# Includes should be relative to parent path
+LOCAL_INCLUDES += ["!..", ".."]
+
+SOURCES += [
+    'AsmJS.cpp',
+    'WasmBaselineCompile.cpp',
+    'WasmBinaryFormat.cpp',
+    'WasmBinaryToAST.cpp',
+    'WasmBinaryToExperimentalText.cpp',
+    'WasmBinaryToText.cpp',
+    'WasmCode.cpp',
+    'WasmCompartment.cpp',
+    'WasmCompile.cpp',
+    'WasmFrameIterator.cpp',
+    'WasmGenerator.cpp',
+    'WasmInstance.cpp',
+    'WasmIonCompile.cpp',
+    'WasmJS.cpp',
+    'WasmModule.cpp',
+    'WasmSignalHandlers.cpp',
+    'WasmStubs.cpp',
+    'WasmTable.cpp',
+    'WasmTextToBinary.cpp',
+    'WasmTextUtils.cpp',
+    'WasmTypes.cpp'
+]
+
+if CONFIG['MOZ_DEBUG']:
+    SOURCES += ['WasmBinaryIterator.cpp']
\ No newline at end of file