Renaming of guard header names to quiet -Wreserved-id-macro

src/core/windows/SDL_directx.h

@@ -20,8 +20,8 @@
 */
 #include "../../SDL_internal.h"
 
-#ifndef _SDL_directx_h
-#define _SDL_directx_h
+#ifndef SDL_directx_h_
+#define SDL_directx_h_
 
 /* Include all of the DirectX 8.0 headers and adds any necessary tweaks */
 
@@ -106,6 +106,6 @@
 typedef struct { int unused; } DIDEVICEINSTANCE;
 #endif
 
-#endif /* _SDL_directx_h */
+#endif /* SDL_directx_h_ */
 
 /* vi: set ts=4 sw=4 expandtab: */

src/core/windows/SDL_xinput.h

@@ -20,8 +20,8 @@
 */
 #include "../../SDL_internal.h"
 
-#ifndef _SDL_xinput_h
-#define _SDL_xinput_h
+#ifndef SDL_xinput_h_
+#define SDL_xinput_h_
 
 #ifdef HAVE_XINPUT_H
 
@@ -172,6 +172,6 @@ extern DWORD SDL_XInputVersion;  /* ((major << 16) & 0xFF00) | (minor & 0xFF) */
 
 #endif /* HAVE_XINPUT_H */
 
-#endif /* _SDL_xinput_h */
+#endif /* SDL_xinput_h_ */
 
 /* vi: set ts=4 sw=4 expandtab: */

src/core/winrt/SDL_winrtapp_common.h

@@ -20,12 +20,12 @@
 */
 #include "SDL_config.h"
 
-#ifndef _SDL_winrtapp_common_h
-#define _SDL_winrtapp_common_h
+#ifndef SDL_winrtapp_common_h_
+#define SDL_winrtapp_common_h_
 
 /* A pointer to the app's C-style main() function (which is a different
    function than the WinRT app's actual entry point).
  */
 extern int (*WINRT_SDLAppEntryPoint)(int, char **);
 
-#endif // ifndef _SDL_winrtapp_common_h
+#endif // SDL_winrtapp_common_h_

src/core/winrt/SDL_winrtapp_xaml.h

@@ -20,8 +20,8 @@
 */
 #include "SDL_config.h"
 
-#ifndef _SDL_winrtapp_xaml_h
-#define _SDL_winrtapp_xaml_h
+#ifndef SDL_winrtapp_xaml_h_
+#define SDL_winrtapp_xaml_h_
 
 #include "SDL_stdinc.h"
 
@@ -30,4 +30,4 @@ extern SDL_bool WINRT_XAMLWasEnabled;
 extern int SDL_WinRTInitXAMLApp(int (*mainFunction)(int, char **), void * backgroundPanelAsIInspectable);
 #endif // ifdef __cplusplus
 
-#endif // ifndef _SDL_winrtapp_xaml_h
+#endif // SDL_winrtapp_xaml_h_