diff -dpru comm-1.9.1.old/mozilla/embedding/browser/gtk/src/EmbedPrivate.cpp comm-1.9.1/mozilla/embedding/browser/gtk/src/EmbedPrivate.cpp
--- comm-1.9.1.old/mozilla/embedding/browser/gtk/src/EmbedPrivate.cpp	2011-06-13 02:34:06.016097015 -0500
+++ comm-1.9.1/mozilla/embedding/browser/gtk/src/EmbedPrivate.cpp	2011-06-13 04:02:25.658276597 -0500
@@ -104,6 +104,7 @@ nsIDirectoryServiceProvider *EmbedPrivat
 class GTKEmbedDirectoryProvider : public nsIDirectoryServiceProvider2
 {
 public:
+  GTKEmbedDirectoryProvider() : nsIDirectoryServiceProvider2() {}
   NS_DECL_ISUPPORTS_INHERITED
   NS_DECL_NSIDIRECTORYSERVICEPROVIDER
   NS_DECL_NSIDIRECTORYSERVICEPROVIDER2
diff -dpru comm-1.9.1.old/mozilla/gfx/ots/src/os2.cc comm-1.9.1/mozilla/gfx/ots/src/os2.cc
--- comm-1.9.1.old/mozilla/gfx/ots/src/os2.cc	2011-06-13 02:35:44.263474251 -0500
+++ comm-1.9.1/mozilla/gfx/ots/src/os2.cc	2011-06-13 03:15:26.530542569 -0500
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include <cstddef>
+
 #include "os2.h"
 
 #include "head.h"
diff -dpru comm-1.9.1.old/mozilla/intl/unicharutil/util/nsUnicharUtils.h comm-1.9.1/mozilla/intl/unicharutil/util/nsUnicharUtils.h
--- comm-1.9.1.old/mozilla/intl/unicharutil/util/nsUnicharUtils.h	2011-06-13 02:36:50.957289945 -0500
+++ comm-1.9.1/mozilla/intl/unicharutil/util/nsUnicharUtils.h	2011-06-13 03:41:04.032372895 -0500
@@ -72,6 +72,7 @@ inline PRBool IsLowerCase(PRUnichar c) {
 class nsCaseInsensitiveStringComparator : public nsStringComparator
 {
 public:
+  nsCaseInsensitiveStringComparator() : nsStringComparator() {}
   virtual int operator() (const PRUnichar*,
                           const PRUnichar*,
                           PRUint32 aLength) const;
diff -dpru comm-1.9.1.old/mozilla/toolkit/xre/nsAppRunner.cpp comm-1.9.1/mozilla/toolkit/xre/nsAppRunner.cpp
--- comm-1.9.1.old/mozilla/toolkit/xre/nsAppRunner.cpp	2011-06-13 02:35:13.876587814 -0500
+++ comm-1.9.1/mozilla/toolkit/xre/nsAppRunner.cpp	2011-06-13 03:57:20.389409772 -0500
@@ -604,6 +604,13 @@ class nsXULAppInfo : public nsIXULAppInf
                      
 {
 public:
+  nsXULAppInfo() :
+    nsIXULAppInfo(),
+#ifdef MOZ_CRASHREPORTER
+    nsICrashReporter(),
+#endif
+    nsIXULRuntime()
+  {}
   NS_DECL_ISUPPORTS_INHERITED
   NS_DECL_NSIXULAPPINFO
   NS_DECL_NSIXULRUNTIME
diff -dpru comm-1.9.1.old/mozilla/xpcom/base/nsDebugImpl.h comm-1.9.1/mozilla/xpcom/base/nsDebugImpl.h
--- comm-1.9.1.old/mozilla/xpcom/base/nsDebugImpl.h	2011-06-13 02:36:43.953905960 -0500
+++ comm-1.9.1/mozilla/xpcom/base/nsDebugImpl.h	2011-06-13 02:57:07.169419478 -0500
@@ -39,6 +39,7 @@
 class nsDebugImpl : public nsIDebug
 {
 public:
+    nsDebugImpl() : nsIDebug() {}
     NS_DECL_ISUPPORTS
     NS_DECL_NSIDEBUG
     
diff -dpru comm-1.9.1.old/mozilla/xpcom/base/nsTraceRefcntImpl.h comm-1.9.1/mozilla/xpcom/base/nsTraceRefcntImpl.h
--- comm-1.9.1.old/mozilla/xpcom/base/nsTraceRefcntImpl.h	2011-06-13 02:36:43.960572676 -0500
+++ comm-1.9.1/mozilla/xpcom/base/nsTraceRefcntImpl.h	2011-06-13 02:59:43.057213595 -0500
@@ -44,6 +44,7 @@
 class nsTraceRefcntImpl : public nsITraceRefcnt
 {
 public:
+  nsTraceRefcntImpl() : nsITraceRefcnt() {}
   NS_DECL_ISUPPORTS
   NS_DECL_NSITRACEREFCNT
 
diff -dpru comm-1.9.1.old/mozilla/xpcom/glue/nsEnumeratorUtils.cpp comm-1.9.1/mozilla/xpcom/glue/nsEnumeratorUtils.cpp
--- comm-1.9.1.old/mozilla/xpcom/glue/nsEnumeratorUtils.cpp	2011-06-13 02:36:33.903833274 -0500
+++ comm-1.9.1/mozilla/xpcom/glue/nsEnumeratorUtils.cpp	2011-06-13 02:55:31.805396428 -0500
@@ -67,6 +67,11 @@ public:
     }
 
 private:
+    EmptyEnumeratorImpl() :
+	nsISimpleEnumerator(),
+	nsIUTF8StringEnumerator(),
+	nsIStringEnumerator()
+    {}
     static const EmptyEnumeratorImpl kInstance;
 };
 
diff -dpru comm-1.9.1.old/mozilla/xpcom/io/nsUnicharInputStream.h comm-1.9.1/mozilla/xpcom/io/nsUnicharInputStream.h
--- comm-1.9.1.old/mozilla/xpcom/io/nsUnicharInputStream.h	2011-06-13 02:36:44.667244452 -0500
+++ comm-1.9.1/mozilla/xpcom/io/nsUnicharInputStream.h	2011-06-13 03:05:14.869613415 -0500
@@ -51,6 +51,10 @@ class nsSimpleUnicharStreamFactory :
   private nsISimpleUnicharStreamFactory
 {
 public:
+  nsSimpleUnicharStreamFactory() :
+    nsIFactory(),
+    nsISimpleUnicharStreamFactory()
+  {}
   NS_DECL_ISUPPORTS_INHERITED
   NS_DECL_NSIFACTORY
   NS_DECL_NSISIMPLEUNICHARSTREAMFACTORY