1 files changed, 8 insertions, 2 deletions
diff --git a/src/postamble.js b/src/postamble.js
index dd4f4f37..4b3e831d 100644
--- a/src/postamble.js
+++ b/src/postamble.js
@@ -2,6 +2,12 @@
 // === Auto-generated postamble setup entry stuff ===
 
 Module.callMain = function callMain(args) {
+  assert(runDependencies == 0, 'cannot call main when async dependencies remain! (listen on __ATMAIN__)');
+
+  args = args || [];
+
+  ensureInitRuntime();
+
   var argc = args.length+1;
   function pad() {
     for (var i = 0; i < {{{ QUANTUM_SIZE }}}-1; i++) {
@@ -70,6 +76,8 @@ function run(args) {
   }
 
   function doRun() {
+    ensureInitRuntime();
+
     var ret = 0;
     calledRun = true;
     if (Module['_main']) {
@@ -112,8 +120,6 @@ if (Module['preInit']) {
   }
 }
 
-initRuntime();
-
 #if INVOKE_RUN
 var shouldRunNow = true;
 #else