Added declaration of SDL_LogInit() and SDL_LogQuit()

Fixes compile warning on Android

VisualC-WinRT/SDL-UWP.vcxproj

@@ -145,6 +145,7 @@
     <ClInclude Include="..\src\SDL_hints_c.h" />
     <ClInclude Include="..\src\SDL_internal.h" />
     <ClInclude Include="..\src\SDL_list.h" />
+    <ClInclude Include="..\src\SDL_log_c.h" />
     <ClInclude Include="..\src\sensor\dummy\SDL_dummysensor.h" />
     <ClInclude Include="..\src\sensor\SDL_sensor_c.h" />
     <ClInclude Include="..\src\sensor\SDL_syssensor.h" />

VisualC-WinRT/SDL-UWP.vcxproj.filters

@@ -330,6 +330,9 @@
     <ClInclude Include="..\src\SDL_internal.h">
       <Filter>Source Files</Filter>
     </ClInclude>
+    <ClInclude Include="..\src\SDL_log_c.h">
+      <Filter>Source Files</Filter>
+    </ClInclude>
     <ClInclude Include="..\src\locale\SDL_syslocale.h">
       <Filter>Source Files</Filter>
     </ClInclude>

VisualC/SDL/SDL.vcxproj

@@ -370,6 +370,7 @@
     <ClInclude Include="..\..\src\SDL_hints_c.h" />
     <ClInclude Include="..\..\src\SDL_internal.h" />
     <ClInclude Include="..\..\src\SDL_list.h" />
+    <ClInclude Include="..\..\src\SDL_log_c.h" />
     <ClInclude Include="..\..\src\sensor\dummy\SDL_dummysensor.h" />
     <ClInclude Include="..\..\src\sensor\SDL_sensor_c.h" />
     <ClInclude Include="..\..\src\sensor\SDL_syssensor.h" />

VisualC/SDL/SDL.vcxproj.filters

@@ -825,6 +825,7 @@
     <ClInclude Include="..\..\src\SDL_assert_c.h" />
     <ClInclude Include="..\..\src\SDL_hints_c.h" />
     <ClInclude Include="..\..\src\SDL_internal.h" />
+    <ClInclude Include="..\..\src\SDL_log_c.h" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\src\audio\wasapi\SDL_wasapi.c" />

src/SDL.c

@@ -47,6 +47,7 @@
 #include "SDL_bits.h"
 #include "SDL_revision.h"
 #include "SDL_assert_c.h"
+#include "SDL_log_c.h"
 #include "events/SDL_events_c.h"
 #include "haptic/SDL_haptic_c.h"
 #include "joystick/SDL_joystick_c.h"
@@ -147,9 +148,6 @@ SDL_SetMainReady(void)
     SDL_MainIsReady = SDL_TRUE;
 }
 
-void SDL_LogInit(void);
-void SDL_LogQuit(void);
-
 int
 SDL_InitSubSystem(Uint32 flags)
 {

src/SDL_log.c

@@ -29,6 +29,7 @@
 #include "SDL_error.h"
 #include "SDL_log.h"
 #include "SDL_mutex.h"
+#include "SDL_log_c.h"
 
 #if HAVE_STDIO_H
 #include <stdio.h>

src/SDL_log_c.h

@@ -0,0 +1,33 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+#include "./SDL_internal.h"
+
+/* This file defines useful function for working with SDL logging */
+
+#ifndef SDL_log_c_h_
+#define SDL_log_c_h_
+
+extern void SDL_LogInit(void);
+extern void SDL_LogQuit(void);
+
+#endif /* SDL_log_c_h_ */
+
+/* vi: set ts=4 sw=4 expandtab: */