From 8cc8e80eaec20c76b99333c7637adc683f24e860 Mon Sep 17 00:00:00 2001
From: Kp <kp@valhallalegends.com>
Date: Sun, 4 Apr 2021 22:01:25 +0000
Subject: [PATCH] Fix VR build failure due to implicit fallthrough

The fallthrough appears to be intentional.  Add an annotation to allow
it.

Fixes: 6bc0e822d2cad952410696db37435ab1b0a4b758 ("Handle HUD overlays in separate screen rects for stereo renderings.")
---
 similar/arch/ogl/ogl.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/similar/arch/ogl/ogl.cpp b/similar/arch/ogl/ogl.cpp
index c066f2395..fde444b25 100644
--- a/similar/arch/ogl/ogl.cpp
+++ b/similar/arch/ogl/ogl.cpp
@@ -1324,6 +1324,7 @@ void ogl_stereo_frame(int xeye, int xoff)
 			// center unsqueezed side-by-side format
 			case STEREO_SIDE_BY_SIDE2:
 				ogl_stereo_viewport[1] -= ogl_stereo_viewport[3]/2;		// y = h/4
+				DXX_BOOST_FALLTHROUGH;
 			// half-width viewports for side-by-side format
 			case STEREO_SIDE_BY_SIDE:
 				ogl_stereo_viewport[0] += ogl_stereo_viewport[2];		// x = w/2