From 21aeb614b11ec0f32fd0b6bc10f60ecb4174f477 Mon Sep 17 00:00:00 2001
From: Spodi <spodi2290@aol.com>
Date: Wed, 22 Nov 2023 22:36:49 +0100
Subject: [PATCH] Fix building on non-Windows

---
 src/graphic/Fast3D/gfx_sdl2.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/graphic/Fast3D/gfx_sdl2.cpp b/src/graphic/Fast3D/gfx_sdl2.cpp
index c9080508f..b39873d10 100644
--- a/src/graphic/Fast3D/gfx_sdl2.cpp
+++ b/src/graphic/Fast3D/gfx_sdl2.cpp
@@ -287,6 +287,7 @@ static int target_fps = 60;
 #define FRAME_INTERVAL_US_NUMERATOR 1000000
 #define FRAME_INTERVAL_US_DENOMINATOR (target_fps)
 
+#ifdef _WIN32
 static LRESULT CALLBACK gfx_sdl_wnd_proc(HWND h_wnd, UINT message, WPARAM w_param, LPARAM l_param) {
     switch (message) {
         case WM_GETDPISCALEDSIZE:
@@ -296,6 +297,7 @@ static LRESULT CALLBACK gfx_sdl_wnd_proc(HWND h_wnd, UINT message, WPARAM w_para
     }
     return 0;
 };
+#endif
 
 static void gfx_sdl_init(const char* game_name, const char* gfx_api_name, bool start_in_fullscreen, uint32_t width,
                          uint32_t height, int32_t posX, int32_t posY) {