SDL: cmake: prepend generated wayland protocol include path

SDL Commits
1 
From c721155b89db10b501d3e8f8702e683900254edf Mon Sep 17 00:00:00 2001
From: Anonymous Maarten <[EMAIL REDACTED]>
Date: Tue, 4 Apr 2023 19:45:29 +0200
Subject: [PATCH] cmake: prepend generated wayland protocol include path

---
 cmake/sdlchecks.cmake | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/cmake/sdlchecks.cmake b/cmake/sdlchecks.cmake
index cf048f5f5570..667221710a09 100644
--- a/cmake/sdlchecks.cmake
+++ b/cmake/sdlchecks.cmake
@@ -569,7 +569,8 @@ macro(CheckWayland)
 
       # We have to generate some protocol interface code for some unstable Wayland features.
       file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/wayland-generated-protocols")
-      target_include_directories(sdl-build-options SYSTEM INTERFACE "${CMAKE_CURRENT_BINARY_DIR}/wayland-generated-protocols")
+      # Prepend to include path to make sure it they override installed protocol headers
+      target_include_directories(sdl-build-options SYSTEM BEFORE INTERFACE "${CMAKE_CURRENT_BINARY_DIR}/wayland-generated-protocols")
 
       file(GLOB WAYLAND_PROTOCOLS_XML RELATIVE "${SDL3_SOURCE_DIR}/wayland-protocols/" "${SDL3_SOURCE_DIR}/wayland-protocols/*.xml")
       foreach(_XML ${WAYLAND_PROTOCOLS_XML})