Fix FTBFS with GCC6

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>

kbabel/kbabeldict/modules/dbsearchengine/database.cpp

@@ -1163,13 +1163,13 @@ DataBaseManager::addLocation (TQString word, unsigned int location)
 
 		antibounce++;
 		//calculate step or use antibounce 
-		if (abs ((int) d[loc] - (int) location) < 50
+		if (labs ((int) d[loc] - (int) location) < 50
 		    || antibounce > 100)
 		    step = 1;	//Go linear...
 		else
 		  {
 		      step =
-			  (abs (d[loc] - location) * num) / totalrecord + 1;
+			  (labs (d[loc] - location) * num) / totalrecord + 1;
 
 		  }
 

tdecachegrind/tdecachegrind/stackbrowser.cpp

@@ -234,7 +234,7 @@ Stack* Stack::split(TraceFunction* f)
 
   // cycles are listed on there own
   if (f->cycle() == f) return 0;
-  if (_top->cycle() == _top) return false;
+  if (_top->cycle() == _top) return 0;
 
   for (c=calls.first();c;c=calls.next()) {
     TraceCallList l = c->called()->callings();

umbrello/umbrello/docgenerators/docbookgenerator.cpp

@@ -97,7 +97,7 @@ TDEIO::Job* DocbookGenerator::generateDocbookForProjectInto(const KURL& destDir)
   // lets open the file for writing
   if( !file.open( IO_WriteOnly ) ) {
     KMessageBox::error(0, i18n("There was a problem saving file: %1").arg(tmpfile.name()), i18n("Save Error"));
-    return false;
+    return 0;
   }
   umlDoc->saveToXMI(*TQT_TQIODEVICE(&file)); // save the xmi stuff to it
   file.close();