diff -ur lordsawar-0.3.1.orig/src/bigmap.cpp lordsawar-0.3.1.new/src/bigmap.cpp
--- lordsawar-0.3.1.orig/src/bigmap.cpp	2015-06-10 19:45:00.000000000 +0200
+++ lordsawar-0.3.1.new/src/bigmap.cpp	2017-08-31 15:53:39.686900798 +0200
@@ -67,10 +67,10 @@
 
 BigMap::~BigMap()
 {
-    if (buffer == true)
+    if (buffer)
       buffer.clear();
 
-    if (magnified_buffer == true)
+    if (magnified_buffer)
       magnified_buffer.clear();
 
     delete d_renderer;
@@ -112,7 +112,7 @@
     // this represents a 1 tile border around the outside of the picture.
     // it gets rid of the black border.
 
-    if (buffer == true)
+    if (buffer)
       buffer.clear();
     
     buffer_view.dim = view.dim + Vector<int>(2, 2);
@@ -122,7 +122,7 @@
     buffer_gc = Cairo::Context::create(buffer);
 
     //now create the part that will go out to the gtk::image
-    if (outgoing == true)
+    if (outgoing)
       outgoing.clear();
     outgoing = Cairo::Surface::create(buffer, Cairo::CONTENT_COLOR_ALPHA, image.get_width(), image.get_height());
 
@@ -174,7 +174,7 @@
     //Glib::RefPtr<Gdk::Pixmap> outgoing;
     if (magnification_factor != 1.0)
       {
-	if (magnified_buffer == true)
+	if (magnified_buffer)
 	  magnified_buffer.clear();
 	magnified_buffer = magnify(buffer);
 	clip_viewable_buffer(magnified_buffer, p, outgoing);
diff -ur lordsawar-0.3.1.orig/src/gui/stack-army-button.cpp lordsawar-0.3.1.new/src/gui/stack-army-button.cpp
--- lordsawar-0.3.1.orig/src/gui/stack-army-button.cpp	2015-06-21 00:48:43.000000000 +0200
+++ lordsawar-0.3.1.new/src/gui/stack-army-button.cpp	2017-08-31 15:54:17.657488003 +0200
@@ -146,7 +146,7 @@
     {
       bool greyed_out = false;
       Stack *active_stack = p->getActivestack();
-      if (active_stack->getArmyById(d_army->getId()) == false)
+      if (active_stack->getArmyById(d_army->getId()) == 0)
         greyed_out = true;
       army_image->property_pixbuf() =
         gc->getCircledArmyPic(p->getArmyset(), d_army->getTypeId(),
diff -ur lordsawar-0.3.1.orig/src/MapRenderer.cpp lordsawar-0.3.1.new/src/MapRenderer.cpp
--- lordsawar-0.3.1.orig/src/MapRenderer.cpp	2015-06-10 20:06:19.000000000 +0200
+++ lordsawar-0.3.1.new/src/MapRenderer.cpp	2017-08-31 15:54:45.721255335 +0200
@@ -72,7 +72,7 @@
     }
   else
     {
-      if (style->getImage() == false)
+      if (style->getImage() == NULL)
 	{
 	  printf ("pic for style %d for tile %d at %d,%d is null\n",
 		  style->getType(), mtile->getType(), tile.x, tile.y);