Finally finish with MinGW building (linking still has some issues shush)

dom/plugins/base/PluginPRLibrary.cpp

@@ -3,6 +3,7 @@
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
+#include <stdlib.h>
 #include "mozilla/PluginPRLibrary.h"
 #include "nsNPAPIPluginInstance.h"
 

dom/plugins/base/nsPluginDirServiceProvider.cpp

@@ -121,8 +121,8 @@ TranslateVersionStr(const WCHAR* szVersion, verBlock *vbVersion)
   // wcstok that is generally not thread-safe. For our purposes here, it works
   // fine, though.
   auto wcstok = [](wchar_t* strToken, const wchar_t* strDelimit,
-                   wchar_t** /*ctx*/) {
-    return ::std::wcstok(strToken, strDelimit);
+                   wchar_t** ctx) {
+    return ::wcstok(strToken, strDelimit, ctx);
   };
 #endif