1 files changed, 21 insertions, 0 deletions
diff --git a/platform/javascript/emscripten_helpers.py b/platform/javascript/emscripten_helpers.py
index f6db10fbbd..d08555916b 100644
--- a/platform/javascript/emscripten_helpers.py
+++ b/platform/javascript/emscripten_helpers.py
@@ -15,7 +15,28 @@ def run_closure_compiler(target, source, env, for_signature):
     return " ".join(cmd)
 
 
+def get_build_version(env):
+    import version
+
+    name = "custom_build"
+    if os.getenv("BUILD_NAME") != None:
+        name = os.getenv("BUILD_NAME")
+    return "%d.%d.%d.%s.%s" % (version.major, version.minor, version.patch, version.status, name)
+
+
 def create_engine_file(env, target, source, externs):
     if env["use_closure_compiler"]:
         return env.BuildJS(target, source, JSEXTERNS=externs)
     return env.Textfile(target, [env.File(s) for s in source])
+
+
+def add_js_libraries(env, libraries):
+    env.Append(JS_LIBS=env.File(libraries))
+
+
+def add_js_pre(env, js_pre):
+    env.Append(JS_PRE=env.File(js_pre))
+
+
+def add_js_externs(env, externs):
+    env.Append(JS_EXTERNS=env.File(externs))