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-rw-r--r--Source/external/SDL2/src/main/winrt/SDL_winrt_main_NonXAML.cpp54
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diff --git a/Source/external/SDL2/src/main/winrt/SDL_winrt_main_NonXAML.cpp b/Source/external/SDL2/src/main/winrt/SDL_winrt_main_NonXAML.cpp
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+++ b/Source/external/SDL2/src/main/winrt/SDL_winrt_main_NonXAML.cpp
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+/*
+ SDL_winrt_main_NonXAML.cpp, placed in the public domain by David Ludwig 3/13/14
+*/
+
+#include "SDL_main.h"
+#include <wrl.h>
+
+/* At least one file in any SDL/WinRT app appears to require compilation
+ with C++/CX, otherwise a Windows Metadata file won't get created, and
+ an APPX0702 build error can appear shortly after linking.
+
+ The following set of preprocessor code forces this file to be compiled
+ as C++/CX, which appears to cause Visual C++ 2012's build tools to
+ create this .winmd file, and will help allow builds of SDL/WinRT apps
+ to proceed without error.
+
+ If other files in an app's project enable C++/CX compilation, then it might
+ be possible for SDL_winrt_main_NonXAML.cpp to be compiled without /ZW,
+ for Visual C++'s build tools to create a winmd file, and for the app to
+ build without APPX0702 errors. In this case, if
+ SDL_WINRT_METADATA_FILE_AVAILABLE is defined as a C/C++ macro, then
+ the #error (to force C++/CX compilation) will be disabled.
+
+ Please note that /ZW can be specified on a file-by-file basis. To do this,
+ right click on the file in Visual C++, click Properties, then change the
+ setting through the dialog that comes up.
+*/
+#ifndef SDL_WINRT_METADATA_FILE_AVAILABLE
+#ifndef __cplusplus_winrt
+#error SDL_winrt_main_NonXAML.cpp must be compiled with /ZW, otherwise build errors due to missing .winmd files can occur.
+#endif
+#endif
+
+/* Prevent MSVC++ from warning about threading models when defining our
+ custom WinMain. The threading model will instead be set via a direct
+ call to Windows::Foundation::Initialize (rather than via an attributed
+ function).
+
+ To note, this warning (C4447) does not seem to come up unless this file
+ is compiled with C++/CX enabled (via the /ZW compiler flag).
+*/
+#ifdef _MSC_VER
+#pragma warning(disable:4447)
+#endif
+
+/* Make sure the function to initialize the Windows Runtime gets linked in. */
+#ifdef _MSC_VER
+#pragma comment(lib, "runtimeobject.lib")
+#endif
+
+int CALLBACK WinMain(HINSTANCE, HINSTANCE, LPSTR, int)
+{
+ return SDL_WinRTRunApp(SDL_main, NULL);
+}