retro-core: removed the shared rg_app_t pointer, it caused a naming conflict with a lib I'm adding

No real downside here, the pointer wasn't used often and its value is static.

Author: ducalex

retro-core/main/main.c

@@ -1,11 +1,9 @@
 #include "shared.h"
 
-rg_app_t *app;
-
 
 void app_main(void)
 {
-    app = rg_system_init(AUDIO_SAMPLE_RATE, NULL, NULL);
+    rg_app_t *app = rg_system_init(AUDIO_SAMPLE_RATE, NULL, NULL);
 
     RG_LOGI("configNs=%s", app->configNs);
 

retro-core/main/main_gbc.c

@@ -15,6 +15,7 @@ static int autoSaveSRAM_Timer = 0;
 static bool useSystemTime = true;
 static bool loadBIOSFile = false;
 
+static rg_app_t *app;
 static rg_surface_t *updates[2];
 static rg_surface_t *currentUpdate;
 

retro-core/main/main_gw.c

@@ -22,6 +22,7 @@ static bool softkey_A_pressed = 0;
 static bool softkey_only = 0;
 static int softkey_duration = 0;
 
+static rg_app_t *app;
 static rg_surface_t *updates[2];
 static rg_surface_t *currentUpdate;
 

retro-core/main/main_lynx.cpp

@@ -14,6 +14,7 @@ static int dpad_mapped_down;
 static int dpad_mapped_left;
 static int dpad_mapped_right;
 
+static rg_app_t *app;
 static rg_surface_t *updates[2];
 static rg_surface_t *currentUpdate;
 // static bool netplay = false;

retro-core/main/main_nes.c

@@ -9,6 +9,7 @@ static bool slowFrame = false;
 static bool nsfPlayer = false;
 static nes_t *nes;
 
+static rg_app_t *app;
 static rg_surface_t *updates[2];
 static rg_surface_t *currentUpdate;
 

retro-core/main/main_pce.c

@@ -18,6 +18,7 @@ static int skipFrames = 0;
 static bool drawFrame = true;
 static bool slowFrame = false;
 
+static rg_app_t *app;
 static rg_surface_t *updates[2];
 static rg_surface_t *currentUpdate;
 

retro-core/main/main_sms.c

@@ -2,6 +2,7 @@
 
 #include <smsplus.h>
 
+static rg_app_t *app;
 static rg_surface_t *updates[2];
 static rg_surface_t *currentUpdate;
 

retro-core/main/main_snes.c

@@ -66,6 +66,7 @@ static const char *SNES_BUTTONS[] = {
 
 #define AUDIO_LOW_PASS_RANGE ((60 * 65536) / 100)
 
+static rg_app_t *app;
 static rg_surface_t *updates[2];
 static rg_surface_t *currentUpdate;
 static rg_audio_sample_t *audioBuffer;

retro-core/main/shared.h

@@ -7,8 +7,6 @@
 #define AUDIO_SAMPLE_RATE   (32000)
 #define AUDIO_BUFFER_LENGTH (AUDIO_SAMPLE_RATE / 50 + 1)
 
-extern rg_app_t *app;
-
 extern uint8_t shared_memory_block_64K[0x10000];
 
 void launcher_main();