Creating lib directory before installing

lib/install.js

@@ -401,26 +401,28 @@ Installer.prototype.readLocalPackageData = function (cb) {
   validate('F', arguments)
   log.silly('install', 'readLocalPackageData')
   var self = this
-  readPackageTree(this.where, iferr(cb, function (currentTree) {
-    self.currentTree = currentTree
-    if (!self.noPackageJsonOk && !currentTree.package) {
-      log.error('install', "Couldn't read dependencies")
-      var er = new Error("ENOENT, open '" + path.join(self.where, 'package.json') + "'")
-      er.code = 'ENOPACKAGEJSON'
-      er.errno = 34
-      return cb(er)
-    }
-    if (!currentTree.package) currentTree.package = {}
-    if (currentTree.package._shrinkwrap) return cb()
-    fs.readFile(path.join(self.where, 'npm-shrinkwrap.json'), {encoding: 'utf8'}, function (er, data) {
-      if (er) return cb()
-      try {
-        currentTree.package._shrinkwrap = JSON.parse(data)
-      } catch (ex) {
-        return cb(ex)
-      }
-      return cb()
-    })
+  mkdirp(this.where, iferr(cb, function () {
+    readPackageTree(self.where, iferr(cb, function (currentTree) {
+        self.currentTree = currentTree
+        if (!self.noPackageJsonOk && !currentTree.package) {
+        log.error('install', "Couldn't read dependencies")
+        var er = new Error("ENOENT, open '" + path.join(self.where, 'package.json') + "'")
+        er.code = 'ENOPACKAGEJSON'
+        er.errno = 34
+        return cb(er)
+        }
+        if (!currentTree.package) currentTree.package = {}
+        if (currentTree.package._shrinkwrap) return cb()
+        fs.readFile(path.join(self.where, 'npm-shrinkwrap.json'), {encoding: 'utf8'}, function (er, data) {
+        if (er) return cb()
+        try {
+            currentTree.package._shrinkwrap = JSON.parse(data)
+        } catch (ex) {
+            return cb(ex)
+        }
+        return cb()
+        })
+    }))
   }))
 
 }