--- qsstv/utils/qftp.cpp.orig	2019-05-19 17:38:26.674612552 -0700
+++ qsstv/utils/qftp.cpp	2019-05-19 17:39:06.920946038 -0700
@@ -1088,8 +1088,7 @@
     case SUCCESS:
       // success handling
       state = IDLE;
-//      [[fallthrough]];
-      Q_FALLTHROUGH();
+      [[fallthrough]];
 
       // no break!
     case IDLE:
--- qsstv/sstv/sstvrx.cpp.orig	2019-05-19 17:38:38.274697106 -0700
+++ qsstv/sstv/sstvrx.cpp	2019-05-19 17:39:26.432120630 -0700
@@ -249,8 +249,7 @@
       switchState(SLANTADJUST); // for logging
       // clear the call received via fskID
       emit (resetCall());
-//      [[fallthrough]];
-      Q_FALLTHROUGH();
+      [[fallthrough]];
 
     case SLANTADJUST:
       sampleCounterLatch=syncProcPtr->sampleCounter; //remember where we've got
--- qwt/qwt_picker_machine.cpp.orig	2019-05-19 17:38:46.833764603 -0700
+++ qwt/qwt_picker_machine.cpp	2019-05-19 17:39:54.847372126 -0700
@@ -243,9 +243,7 @@
             }
         }
 
-      //        [[fallthrough]];
-
-      Q_FALLTHROUGH();
+              [[fallthrough]];
 
     case QEvent::MouseMove:
     case QEvent::Wheel: