From b6eec4ad64ca11112d364c3fab751bcd9dea1c1e Mon Sep 17 00:00:00 2001
From: Jon Spencer <jon@jonspencer.ca>
Date: Tue, 26 Feb 2019 11:08:53 -0800
Subject: [PATCH] [sdl2] allow sdl2 vulkan support (#5374)

* [sdl2] allow sdl2 vulkan support

* turn sdl2 vulkan support into a feature
---
 ports/sdl2/CONTROL        | 4 ++++
 ports/sdl2/portfile.cmake | 7 ++++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/ports/sdl2/CONTROL b/ports/sdl2/CONTROL
index 18e867b7c6..05e9d6363d 100644
--- a/ports/sdl2/CONTROL
+++ b/ports/sdl2/CONTROL
@@ -1,3 +1,7 @@
 Source: sdl2
 Version: 2.0.9-1
 Description: Simple DirectMedia Layer is a cross-platform development library designed to provide low level access to audio, keyboard, mouse, joystick, and graphics hardware via OpenGL and Direct3D.
+
+Feature: vulkan
+Description: Vulkan functionality for SDL
+Build-Depends: vulkan
diff --git a/ports/sdl2/portfile.cmake b/ports/sdl2/portfile.cmake
index 4bcfa5a9af..294d374496 100644
--- a/ports/sdl2/portfile.cmake
+++ b/ports/sdl2/portfile.cmake
@@ -16,13 +16,18 @@ string(COMPARE EQUAL "${VCPKG_LIBRARY_LINKAGE}" "static" SDL_STATIC)
 string(COMPARE EQUAL "${VCPKG_LIBRARY_LINKAGE}" "dynamic" SDL_SHARED)
 string(COMPARE EQUAL "${VCPKG_CRT_LINKAGE}" "static" FORCE_STATIC_VCRT)
 
+set(VULKAN_VIDEO OFF)
+if("vulkan" IN_LIST FEATURES)
+    set(VULKAN_VIDEO ON)
+endif()
+
 vcpkg_configure_cmake(
     SOURCE_PATH ${SOURCE_PATH}
     PREFER_NINJA
     OPTIONS
         -DSDL_STATIC=${SDL_STATIC}
         -DSDL_SHARED=${SDL_SHARED}
-        -DVIDEO_VULKAN=OFF
+        -DVIDEO_VULKAN=${VULKAN_VIDEO}
         -DFORCE_STATIC_VCRT=${FORCE_STATIC_VCRT}
         -DLIBC=ON
 )