Fix -Wundef warnings due to use of unguarded SDL_VIDEO_RENDER_VITA_GXM

src/render/SDL_render.c

@@ -113,7 +113,7 @@ static const SDL_RenderDriver *render_drivers[] = {
 #ifdef SDL_VIDEO_RENDER_PSP
     &PSP_RenderDriver,
 #endif
-#if SDL_VIDEO_RENDER_VITA_GXM
+#ifdef SDL_VIDEO_RENDER_VITA_GXM
     &VITA_GXM_RenderDriver,
 #endif
 #if SDL_VIDEO_RENDER_SW

src/render/vitagxm/SDL_render_vita_gxm.c

@@ -20,7 +20,7 @@
 */
 #include "SDL_internal.h"
 
-#if SDL_VIDEO_RENDER_VITA_GXM
+#ifdef SDL_VIDEO_RENDER_VITA_GXM
 
 #include "../SDL_sysrender.h"
 

src/render/vitagxm/SDL_render_vita_gxm_memory.c

@@ -21,7 +21,7 @@
 
 #include "SDL_internal.h"
 
-#if SDL_VIDEO_RENDER_VITA_GXM
+#ifdef SDL_VIDEO_RENDER_VITA_GXM
 
 #include "SDL_render_vita_gxm_memory.h"
 

src/render/vitagxm/SDL_render_vita_gxm_tools.c

@@ -20,7 +20,7 @@
 */
 #include "SDL_internal.h"
 
-#if SDL_VIDEO_RENDER_VITA_GXM
+#ifdef SDL_VIDEO_RENDER_VITA_GXM
 
 #include "../SDL_sysrender.h"
 

src/video/vita/SDL_vitamessagebox.c

@@ -26,13 +26,13 @@
 #include "SDL_vitamessagebox.h"
 #include <psp2/message_dialog.h>
 
-#if SDL_VIDEO_RENDER_VITA_GXM
+#ifdef SDL_VIDEO_RENDER_VITA_GXM
 #include "../../render/vitagxm/SDL_render_vita_gxm_tools.h"
 #endif /* SDL_VIDEO_RENDER_VITA_GXM */
 
 int VITA_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
 {
-#if SDL_VIDEO_RENDER_VITA_GXM
+#ifdef SDL_VIDEO_RENDER_VITA_GXM
     SceMsgDialogParam param;
     SceMsgDialogUserMessageParam msgParam;
     SceMsgDialogButtonsParam buttonParam;