3 files changed, 13 insertions, 11 deletions
diff --git a/src/qt/macdockiconhandler.h b/src/qt/macdockiconhandler.h
index d02c148f9..2092fb26b 100644
--- a/src/qt/macdockiconhandler.h
+++ b/src/qt/macdockiconhandler.h
@@ -6,7 +6,12 @@
 class QMenu;
 class QIcon;
 class QWidget;
-class objc_object;
+
+#ifdef __OBJC__
+@class DockIconClickEventHandler;
+#else
+class DockIconClickEventHandler;
+#endif
 
 /** Macintosh-specific dock icon handler.
  */
@@ -31,7 +36,7 @@ public slots:
 private:
     MacDockIconHandler();
 
-    objc_object *m_dockIconClickEventHandler;
+    DockIconClickEventHandler *m_dockIconClickEventHandler;
     QWidget *m_dummyWidget;
     QMenu *m_dockMenu;
 };
diff --git a/src/qt/qtipcserver.cpp b/src/qt/qtipcserver.cpp
index ec2d56b9e..74f44fac5 100644
--- a/src/qt/qtipcserver.cpp
+++ b/src/qt/qtipcserver.cpp
@@ -74,8 +74,6 @@ void ipcScanRelay(int argc, char *argv[])
 
 static void ipcThread(void* pArg)
 {
-    IMPLEMENT_RANDOMIZE_STACK(ipcThread(pArg));
-	
     // Make this thread recognisable as the GUI-IPC thread
     RenameThread("bitcoin-gui-ipc");
 	
diff --git a/src/qt/transactiondesc.cpp b/src/qt/transactiondesc.cpp
index 3e7eca59c..efc77e190 100644
--- a/src/qt/transactiondesc.cpp
+++ b/src/qt/transactiondesc.cpp
@@ -64,11 +64,10 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx)
         {
             strHTML += "<b>" + tr("Source") + ":</b> " + tr("Generated") + "<br>";
         }
-        else if (!wtx.mapValue["from"].empty())
+        else if (wtx.mapValue.count("from") && !wtx.mapValue["from"].empty())
         {
             // Online transaction
-            if (!wtx.mapValue["from"].empty())
-                strHTML += "<b>" + tr("From") + ":</b> " + GUIUtil::HtmlEscape(wtx.mapValue["from"]) + "<br>";
+            strHTML += "<b>" + tr("From") + ":</b> " + GUIUtil::HtmlEscape(wtx.mapValue["from"]) + "<br>";
         }
         else
         {
@@ -104,7 +103,7 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx)
         //
         // To
         //
-        if (!wtx.mapValue["to"].empty())
+        if (wtx.mapValue.count("to") && !wtx.mapValue["to"].empty())
         {
             // Online transaction
             std::string strAddress = wtx.mapValue["to"];
@@ -160,7 +159,7 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx)
                     if (wallet->IsMine(txout))
                         continue;
 
-                    if (wtx.mapValue["to"].empty())
+                    if (!wtx.mapValue.count("to") || wtx.mapValue["to"].empty())
                     {
                         // Offline transaction
                         CTxDestination address;
@@ -209,9 +208,9 @@ QString TransactionDesc::toHTML(CWallet *wallet, CWalletTx &wtx)
         //
         // Message
         //
-        if (!wtx.mapValue["message"].empty())
+        if (wtx.mapValue.count("message") && !wtx.mapValue["message"].empty())
             strHTML += "<br><b>" + tr("Message") + ":</b><br>" + GUIUtil::HtmlEscape(wtx.mapValue["message"], true) + "<br>";
-        if (!wtx.mapValue["comment"].empty())
+        if (wtx.mapValue.count("comment") && !wtx.mapValue["comment"].empty())
             strHTML += "<br><b>" + tr("Comment") + ":</b><br>" + GUIUtil::HtmlEscape(wtx.mapValue["comment"], true) + "<br>";
 
         strHTML += "<b>" + tr("Transaction ID") + ":</b> " + wtx.GetHash().ToString().c_str() + "<br>";