fix up uninstall

lib/config/loader.js

@@ -25,6 +25,8 @@ var PackageName = require('./package-name');
 var alphabetize = require('../common').alphabetize;
 var ui = require('../ui');
 
+var nodelibs;
+
 /*
  * Loader Configuration Class
  *
@@ -125,7 +127,6 @@ Config.prototype.read = function() {
     // separate map into baseMap and depMap
     self.baseMap = {};
     self.depMap = {};
-    var nodelibs;
     for (var d in cfg.map) {
       if (typeof cfg.map[d] == 'string')
         self.baseMap[d] = new PackageName(cfg.map[d]);
@@ -134,14 +135,20 @@ Config.prototype.read = function() {
         self.depMap[d] = {};
         for (var m in depMap)
           self.depMap[d][m] = new PackageName(depMap[m]);
-        // add back nodelibs
-        if (d.substr(0, 4) == 'npm:') {
-          nodelibs = nodelibs || new PackageName(endpoint.load('npm').nodelibs);
-          self.depMap[d].nodelibs = nodelibs;
-        }
       }
     }
 
+    // ensure that everything in baseMap has a depMap, even if empty
+    // also add back nodelibs into depMaps here
+    if (!nodelibs)
+      nodelibs = new PackageName(endpoint.load('npm').nodelibs);
+    for (var d in self.baseMap) {
+      var name = self.baseMap[d].exactName;
+      var depMap = self.depMap[name] = self.depMap[name] || {};
+      if (name.substr(0, 4) == 'npm:')
+        self.depMap[name].nodelibs = nodelibs;
+    }
+
     self.versions = self.versions || {};
     for (var v in cfg.versions) {
       if (typeof cfg.versions[v] == 'string')