# HG changeset patch
# Parent 524a8ae76bace97a2cd8ab7bdb84ba78cc852c55

diff --git a/xpcom/base/nsDebugImpl.h b/xpcom/base/nsDebugImpl.h
--- a/xpcom/base/nsDebugImpl.h
+++ b/xpcom/base/nsDebugImpl.h
@@ -40,6 +40,7 @@
 class nsDebugImpl : public nsIDebug2
 {
 public:
+    nsDebugImpl() {}
     NS_DECL_ISUPPORTS
     NS_DECL_NSIDEBUG
     NS_DECL_NSIDEBUG2
diff --git a/xpcom/base/nsTraceRefcntImpl.h b/xpcom/base/nsTraceRefcntImpl.h
--- a/xpcom/base/nsTraceRefcntImpl.h
+++ b/xpcom/base/nsTraceRefcntImpl.h
@@ -44,6 +44,7 @@
 class nsTraceRefcntImpl : public nsITraceRefcnt
 {
 public:
+  nsTraceRefcntImpl() {}
   NS_DECL_ISUPPORTS
   NS_DECL_NSITRACEREFCNT
 
diff --git a/xpcom/glue/nsEnumeratorUtils.cpp b/xpcom/glue/nsEnumeratorUtils.cpp
--- a/xpcom/glue/nsEnumeratorUtils.cpp
+++ b/xpcom/glue/nsEnumeratorUtils.cpp
@@ -52,6 +52,7 @@ class EmptyEnumeratorImpl : public nsISi
                             public nsIStringEnumerator
 {
 public:
+    EmptyEnumeratorImpl() {}
     // nsISupports interface
     NS_DECL_ISUPPORTS_INHERITED  // not really inherited, but no mRefCnt
 
diff --git a/xpcom/io/nsUnicharInputStream.h b/xpcom/io/nsUnicharInputStream.h
--- a/xpcom/io/nsUnicharInputStream.h
+++ b/xpcom/io/nsUnicharInputStream.h
@@ -51,6 +51,7 @@ class nsSimpleUnicharStreamFactory :
   private nsISimpleUnicharStreamFactory
 {
 public:
+  nsSimpleUnicharStreamFactory() {}
   NS_DECL_ISUPPORTS_INHERITED
   NS_DECL_NSIFACTORY
   NS_DECL_NSISIMPLEUNICHARSTREAMFACTORY