diff -Naur FreeFileSync_9.8_Source_orig/FreeFileSync/Source/lib/dir_lock.cpp FreeFileSync_9.8_Source/FreeFileSync/Source/lib/dir_lock.cpp
--- FreeFileSync_9.8_Source_orig/FreeFileSync/Source/lib/dir_lock.cpp	2018-02-06 17:36:09.000000000 +0100
+++ FreeFileSync_9.8_Source/FreeFileSync/Source/lib/dir_lock.cpp	2018-02-25 10:32:21.437527408 +0100
@@ -22,6 +22,8 @@
     #include <signal.h> //kill()
     #include <pwd.h> //getpwuid_r()
 
+#include <zen/warn_static.h>
+
 using namespace zen;
 using namespace fff;
 
diff -Naur FreeFileSync_9.8_Source_orig/FreeFileSync/Source/ui/main_dlg.cpp FreeFileSync_9.8_Source/FreeFileSync/Source/ui/main_dlg.cpp
--- FreeFileSync_9.8_Source_orig/FreeFileSync/Source/ui/main_dlg.cpp	2018-02-06 17:36:08.000000000 +0100
+++ FreeFileSync_9.8_Source/FreeFileSync/Source/ui/main_dlg.cpp	2018-02-25 10:31:52.414217565 +0100
@@ -4821,13 +4821,13 @@
 
     m_menuItemCheckVersionAuto->Check(updateCheckActive(globalCfg_.gui.lastUpdateCheck));
 
-    if (shouldRunAutomaticUpdateCheck(globalCfg_.gui.lastUpdateCheck))
+    /* if (shouldRunAutomaticUpdateCheck(globalCfg_.gui.lastUpdateCheck))
     {
         flashStatusInformation(_("Searching for program updates..."));
         //synchronous update check is sufficient here:
         automaticUpdateCheckEval(this, globalCfg_.gui.lastUpdateCheck, globalCfg_.gui.lastOnlineVersion,
                                  automaticUpdateCheckRunAsync(automaticUpdateCheckPrepare().get()).get());
-    }
+    } */
 }
 
 
@@ -4836,7 +4836,7 @@
     //execute just once per startup!
     Disconnect(wxEVT_IDLE, wxIdleEventHandler(MainDialog::OnRegularUpdateCheck), nullptr, this);
 
-    if (shouldRunAutomaticUpdateCheck(globalCfg_.gui.lastUpdateCheck))
+    /* if (shouldRunAutomaticUpdateCheck(globalCfg_.gui.lastUpdateCheck))
     {
         flashStatusInformation(_("Searching for program updates..."));
 
@@ -4848,7 +4848,7 @@
             automaticUpdateCheckEval(this, globalCfg_.gui.lastUpdateCheck, globalCfg_.gui.lastOnlineVersion,
                                      resultAsync.get()); //run on main thread:
         });
-    }
+    } */
 }