cp.diff

diff --git a/lib/child_process.js b/lib/child_process.js
index 33928a9..151897d 100644
--- a/lib/child_process.js
+++ b/lib/child_process.js
@@ -952,7 +952,10 @@ ChildProcess.prototype.spawn = function(options) {
 
   var err = this._handle.spawn(options);
 
-  if (err) {
+  if (!constants)
+    constants = process.binding('constants');
+
+  if (err && (err * -1) != constants.ENOENT) {
     // Close all opened fds on error
     stdio.forEach(function(stdio) {
       if (stdio.type === 'pipe') {
@@ -965,6 +968,12 @@ ChildProcess.prototype.spawn = function(options) {
     throw errnoException(err, 'spawn');
   }
 
+  if (err) {
+    process.nextTick(function() {
+      self._handle.onexit(err);
+    });
+  }
+
   this.pid = this._handle.pid;
 
   stdio.forEach(function(stdio, i) {