Fixed compilation with MSVC.

private/sdl_gpu_test/main.cpp

@@ -2,7 +2,7 @@
 #include <mijin/util/scope_guard.hpp>
 #include <mijin/util/variant.hpp>
 #include <spdlog/spdlog.h>
-#include <SDL3/SDL.h>
+#include <mijin/util/winundef.hpp>
 
 #include "./sdlpp/event.hpp"
 #include "./sdlpp/gpu.hpp"

private/sdl_gpu_test/sdlpp/common.hpp

@@ -11,6 +11,7 @@
 #include <mijin/debug/assert.hpp>
 #include <mijin/util/bitflags.hpp>
 #include <SDL3/SDL.h>
+#include <mijin/util/winundef.hpp>
 
 namespace sdlpp
 {
@@ -45,7 +46,7 @@ public:
     operator THandle*() const noexcept { return mHandle; }
 };
 
-class SDLError : std::runtime_error
+class SDLError : public std::runtime_error
 {
 public:
     SDLError() : std::runtime_error(SDL_GetError()) {}

private/sdl_gpu_test/sdlpp/event.hpp

@@ -7,6 +7,8 @@
 #include <optional>
 #include <variant>
 
+#include "./common.hpp"
+
 namespace sdlpp
 {
 struct Event

private/sdl_gpu_test/sdlpp/gpu.hpp

@@ -4,8 +4,6 @@
 #if !defined(SDL_GPU_TEST_PRIVATE_SDL_GPU_TEST_SDLPP_GPU_HPP_INCLUDED)
 #define SDL_GPU_TEST_PRIVATE_SDL_GPU_TEST_SDLPP_GPU_HPP_INCLUDED 1
 
-#include <SDL3/SDL_gpu.h>
-
 #include "./common.hpp"
 
 namespace sdlpp