Fix GCC build

src/tests/test_utils/draw_call_perf_utils.h

@@ -24,8 +24,8 @@ GLuint SetupSimpleScaleAndOffsetProgram();
 // Returns buffer ID filled with 2-component triangle coordinates. The buffer is left as bound.
 // Generates triangles like this with 2-component coordinates:
 //    A
-//   / \
-//  /   \
+//   / \.
+//  /   \.
 // B-----C
 GLuint Create2DTriangleBuffer(size_t numTris, GLenum usage);
 

util/x11/X11Window.cpp

@@ -394,7 +394,6 @@ void X11Window::processEvent(const XEvent &xEvent)
         {
             Event event;
             MouseButton button = MOUSEBUTTON_UNKNOWN;
-            int wheelX = 0;
             int wheelY = 0;
 
             // The mouse wheel updates are sent via button events.
@@ -407,10 +406,8 @@ void X11Window::processEvent(const XEvent &xEvent)
                 wheelY = -1;
                 break;
               case 6:
-                wheelX = 1;
                 break;
               case 7:
-                wheelX = -1;
                 break;
 
               case Button1: