diff --git a/include/SDL_system.h b/include/SDL_system.h
index 35b29c0bd..b7cbd6d53 100644
--- a/include/SDL_system.h
+++ b/include/SDL_system.h
@@ -96,7 +96,7 @@ extern DECLSPEC void SDLCALL SDL_iPhoneSetEventPump(SDL_bool enabled);
 
    This returns JNIEnv*, but the prototype is void* so we don't need jni.h
  */
-extern DECLSPEC void * SDLCALL SDL_AndroidGetJNIEnv();
+extern DECLSPEC void * SDLCALL SDL_AndroidGetJNIEnv(void);
 
 /**
    \brief Get the SDL Activity object for the application
@@ -106,7 +106,7 @@ extern DECLSPEC void * SDLCALL SDL_AndroidGetJNIEnv();
    It is the caller's responsibility to properly release it
    (using env->Push/PopLocalFrame or manually with env->DeleteLocalRef)
  */
-extern DECLSPEC void * SDLCALL SDL_AndroidGetActivity();
+extern DECLSPEC void * SDLCALL SDL_AndroidGetActivity(void);
 
 /**
    See the official Android developer guide for more information:
@@ -121,7 +121,7 @@ extern DECLSPEC void * SDLCALL SDL_AndroidGetActivity();
    This path is unique to your application and cannot be written to
    by other applications.
  */
-extern DECLSPEC const char * SDLCALL SDL_AndroidGetInternalStoragePath();
+extern DECLSPEC const char * SDLCALL SDL_AndroidGetInternalStoragePath(void);
 
 /**
    \brief Get the current state of external storage, a bitmask of these values:
@@ -130,7 +130,7 @@ extern DECLSPEC const char * SDLCALL SDL_AndroidGetInternalStoragePath();
 
    If external storage is currently unavailable, this will return 0.
 */
-extern DECLSPEC int SDLCALL SDL_AndroidGetExternalStorageState();
+extern DECLSPEC int SDLCALL SDL_AndroidGetExternalStorageState(void);
 
 /**
    \brief Get the path used for external storage for this application.
@@ -138,7 +138,7 @@ extern DECLSPEC int SDLCALL SDL_AndroidGetExternalStorageState();
    This path is unique to your application, but is public and can be
    written to by other applications.
  */
-extern DECLSPEC const char * SDLCALL SDL_AndroidGetExternalStoragePath();
+extern DECLSPEC const char * SDLCALL SDL_AndroidGetExternalStoragePath(void);
 
 #endif /* __ANDROID__ */
 
diff --git a/src/audio/android/SDL_androidaudio.c b/src/audio/android/SDL_androidaudio.c
index 96f6d631a..3b9b80f44 100644
--- a/src/audio/android/SDL_androidaudio.c
+++ b/src/audio/android/SDL_androidaudio.c
@@ -215,6 +215,10 @@ void ANDROIDAUDIO_ResumeDevices(void)
     }
 }
 
+#else 
+
+void ANDROIDAUDIO_ResumeDevices(void) {}
+void ANDROIDAUDIO_PauseDevices(void) {}
 
 #endif /* SDL_AUDIO_DRIVER_ANDROID */
 
diff --git a/src/audio/android/SDL_androidaudio.h b/src/audio/android/SDL_androidaudio.h
index 133615302..32c7377e0 100644
--- a/src/audio/android/SDL_androidaudio.h
+++ b/src/audio/android/SDL_androidaudio.h
@@ -34,6 +34,9 @@ struct SDL_PrivateAudioData
     int resume;
 };
 
+void ANDROIDAUDIO_ResumeDevices(void);
+void ANDROIDAUDIO_PauseDevices(void);
+
 #endif /* _SDL_androidaudio_h */
 
 /* vi: set ts=4 sw=4 expandtab: */
diff --git a/src/core/android/SDL_android.c b/src/core/android/SDL_android.c
index b93b16255..b6d2b28a0 100644
--- a/src/core/android/SDL_android.c
+++ b/src/core/android/SDL_android.c
@@ -42,12 +42,110 @@
 #include <pthread.h>
 #include <sys/types.h>
 #include <unistd.h>
-#define LOG_TAG "SDL_android"
+/* #define LOG_TAG "SDL_android" */
 /* #define LOGI(...)  __android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__) */
 /* #define LOGE(...)  __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__) */
 #define LOGI(...) do {} while (0)
 #define LOGE(...) do {} while (0)
 
+
+#define SDL_JAVA_PREFIX                                 org_libsdl_app
+#define CONCAT1(prefix, class, function)                CONCAT2(prefix, class, function)
+#define CONCAT2(prefix, class, function)                Java_ ## prefix ## _ ## class ## _ ## function
+#define SDL_JAVA_INTERFACE(function)                    CONCAT1(SDL_JAVA_PREFIX, SDLActivity, function)
+#define SDL_JAVA_INTERFACE_INPUT_CONNECTION(function)   CONCAT1(SDL_JAVA_PREFIX, SDLInputConnection, function)
+
+
+/* Java class SDLActivity */
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeDropFile)(
+        JNIEnv* env, jclass jcls,
+        jstring filename);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeResize)(
+        JNIEnv* env, jclass jcls,
+        jint width, jint height, jint format, jfloat rate);
+
+JNIEXPORT jint JNICALL SDL_JAVA_INTERFACE(onNativePadDown)(
+        JNIEnv* env, jclass jcls,
+        jint device_id, jint keycode);
+
+JNIEXPORT jint JNICALL SDL_JAVA_INTERFACE(onNativePadUp)(
+        JNIEnv* env, jclass jcls,
+        jint device_id, jint keycode);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeJoy)(
+        JNIEnv* env, jclass jcls,
+        jint device_id, jint axis, jfloat value);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeHat)(
+        JNIEnv* env, jclass jcls,
+        jint device_id, jint hat_id, jint x, jint y);
+
+JNIEXPORT jint JNICALL SDL_JAVA_INTERFACE(nativeAddJoystick)(
+        JNIEnv* env, jclass jcls,
+        jint device_id, jstring device_name, jint is_accelerometer, 
+        jint nbuttons, jint naxes, jint nhats, jint nballs);
+
+JNIEXPORT jint JNICALL SDL_JAVA_INTERFACE(nativeRemoveJoystick)(
+        JNIEnv* env, jclass jcls,
+        jint device_id);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeSurfaceChanged)(
+        JNIEnv* env, jclass jcls);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeSurfaceDestroyed)(
+        JNIEnv* env, jclass jcls);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeKeyDown)(
+        JNIEnv* env, jclass jcls,
+        jint keycode);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeKeyUp)(
+        JNIEnv* env, jclass jcls,
+        jint keycode);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeKeyboardFocusLost)(
+        JNIEnv* env, jclass jcls);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeTouch)(
+        JNIEnv* env, jclass jcls,
+        jint touch_device_id_in, jint pointer_finger_id_in,
+        jint action, jfloat x, jfloat y, jfloat p);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeMouse)(
+        JNIEnv* env, jclass jcls,
+        jint button, jint action, jfloat x, jfloat y);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeAccel)(
+        JNIEnv* env, jclass jcls,
+        jfloat x, jfloat y, jfloat z);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeLowMemory)(
+        JNIEnv* env, jclass cls);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeQuit)(
+        JNIEnv* env, jclass cls);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativePause)(
+        JNIEnv* env, jclass cls);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeResume)(
+        JNIEnv* env, jclass cls);
+
+JNIEXPORT jstring JNICALL SDL_JAVA_INTERFACE(nativeGetHint)(
+        JNIEnv* env, jclass cls,
+        jstring name);
+
+/* Java class SDLInputConnection */
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE_INPUT_CONNECTION(nativeCommitText)(
+        JNIEnv* env, jclass cls,
+        jstring text, jint newCursorPosition);
+
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE_INPUT_CONNECTION(nativeSetComposingText)(
+        JNIEnv* env, jclass cls,
+        jstring text, jint newCursorPosition);
+
+
 /* Uncomment this to log messages entering and exiting methods in this file */
 /* #define DEBUG_JNI */
 
@@ -153,7 +251,7 @@ JNIEXPORT void JNICALL SDL_Android_Init(JNIEnv* mEnv, jclass cls)
 }
 
 /* Drop file */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeDropFile(
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeDropFile)(
                                     JNIEnv* env, jclass jcls,
                                     jstring filename)
 {
@@ -164,7 +262,7 @@ JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeDropFile(
 }
 
 /* Resize */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeResize(
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeResize)(
                                     JNIEnv* env, jclass jcls,
                                     jint width, jint height, jint format, jfloat rate)
 {
@@ -172,7 +270,7 @@ JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeResize(
 }
 
 /* Paddown */
-JNIEXPORT jint JNICALL Java_org_libsdl_app_SDLActivity_onNativePadDown(
+JNIEXPORT jint JNICALL SDL_JAVA_INTERFACE(onNativePadDown)(
                                     JNIEnv* env, jclass jcls,
                                     jint device_id, jint keycode)
 {
@@ -180,15 +278,15 @@ JNIEXPORT jint JNICALL Java_org_libsdl_app_SDLActivity_onNativePadDown(
 }
 
 /* Padup */
-JNIEXPORT jint JNICALL Java_org_libsdl_app_SDLActivity_onNativePadUp(
-                                   JNIEnv* env, jclass jcls,
-                                   jint device_id, jint keycode)
+JNIEXPORT jint JNICALL SDL_JAVA_INTERFACE(onNativePadUp)(
+                                    JNIEnv* env, jclass jcls,
+                                    jint device_id, jint keycode)
 {
     return Android_OnPadUp(device_id, keycode);
 }
 
 /* Joy */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeJoy(
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeJoy)(
                                     JNIEnv* env, jclass jcls,
                                     jint device_id, jint axis, jfloat value)
 {
@@ -196,7 +294,7 @@ JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeJoy(
 }
 
 /* POV Hat */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeHat(
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeHat)(
                                     JNIEnv* env, jclass jcls,
                                     jint device_id, jint hat_id, jint x, jint y)
 {
@@ -204,10 +302,10 @@ JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeHat(
 }
 
 
-JNIEXPORT jint JNICALL Java_org_libsdl_app_SDLActivity_nativeAddJoystick(
-    JNIEnv* env, jclass jcls,
-    jint device_id, jstring device_name, jint is_accelerometer, 
-    jint nbuttons, jint naxes, jint nhats, jint nballs)
+JNIEXPORT jint JNICALL SDL_JAVA_INTERFACE(nativeAddJoystick)(
+                                    JNIEnv* env, jclass jcls,
+                                    jint device_id, jstring device_name, jint is_accelerometer, 
+                                    jint nbuttons, jint naxes, jint nhats, jint nballs)
 {
     int retval;
     const char *name = (*env)->GetStringUTFChars(env, device_name, NULL);
@@ -219,15 +317,16 @@ JNIEXPORT jint JNICALL Java_org_libsdl_app_SDLActivity_nativeAddJoystick(
     return retval;
 }
 
-JNIEXPORT jint JNICALL Java_org_libsdl_app_SDLActivity_nativeRemoveJoystick(
-    JNIEnv* env, jclass jcls, jint device_id)
+JNIEXPORT jint JNICALL SDL_JAVA_INTERFACE(nativeRemoveJoystick)(
+                                    JNIEnv* env, jclass jcls,
+                                    jint device_id)
 {
     return Android_RemoveJoystick(device_id);
 }
 
 
 /* Surface Created */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeSurfaceChanged(JNIEnv* env, jclass jcls)
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeSurfaceChanged)(JNIEnv* env, jclass jcls)
 {
     SDL_WindowData *data;
     SDL_VideoDevice *_this;
@@ -253,7 +352,7 @@ JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeSurfaceChanged(JN
 }
 
 /* Surface Destroyed */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeSurfaceDestroyed(JNIEnv* env, jclass jcls)
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeSurfaceDestroyed)(JNIEnv* env, jclass jcls)
 {
     /* We have to clear the current context and destroy the egl surface here
      * Otherwise there's BAD_NATIVE_WINDOW errors coming from eglCreateWindowSurface on resume
@@ -280,21 +379,23 @@ JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeSurfaceDestroyed(
 }
 
 /* Keydown */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeKeyDown(
-                                    JNIEnv* env, jclass jcls, jint keycode)
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeKeyDown)(
+                                    JNIEnv* env, jclass jcls,
+                                    jint keycode)
 {
     Android_OnKeyDown(keycode);
 }
 
 /* Keyup */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeKeyUp(
-                                    JNIEnv* env, jclass jcls, jint keycode)
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeKeyUp)(
+                                    JNIEnv* env, jclass jcls,
+                                    jint keycode)
 {
     Android_OnKeyUp(keycode);
 }
 
 /* Keyboard Focus Lost */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeKeyboardFocusLost(
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeKeyboardFocusLost)(
                                     JNIEnv* env, jclass jcls)
 {
     /* Calling SDL_StopTextInput will take care of hiding the keyboard and cleaning up the DummyText widget */
@@ -303,7 +404,7 @@ JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeKeyboardFocusLost
 
 
 /* Touch */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeTouch(
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeTouch)(
                                     JNIEnv* env, jclass jcls,
                                     jint touch_device_id_in, jint pointer_finger_id_in,
                                     jint action, jfloat x, jfloat y, jfloat p)
@@ -312,7 +413,7 @@ JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeTouch(
 }
 
 /* Mouse */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeMouse(
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeMouse)(
                                     JNIEnv* env, jclass jcls,
                                     jint button, jint action, jfloat x, jfloat y)
 {
@@ -320,7 +421,7 @@ JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeMouse(
 }
 
 /* Accelerometer */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeAccel(
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(onNativeAccel)(
                                     JNIEnv* env, jclass jcls,
                                     jfloat x, jfloat y, jfloat z)
 {
@@ -331,14 +432,14 @@ JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_onNativeAccel(
 }
 
 /* Low memory */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_nativeLowMemory(
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeLowMemory)(
                                     JNIEnv* env, jclass cls)
 {
     SDL_SendAppEvent(SDL_APP_LOWMEMORY);
 }
 
 /* Quit */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_nativeQuit(
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeQuit)(
                                     JNIEnv* env, jclass cls)
 {
     /* Discard previous events. The user should have handled state storage
@@ -354,7 +455,7 @@ JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_nativeQuit(
 }
 
 /* Pause */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_nativePause(
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativePause)(
                                     JNIEnv* env, jclass cls)
 {
     __android_log_print(ANDROID_LOG_VERBOSE, "SDL", "nativePause()");
@@ -371,7 +472,7 @@ JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_nativePause(
 }
 
 /* Resume */
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_nativeResume(
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeResume)(
                                     JNIEnv* env, jclass cls)
 {
     __android_log_print(ANDROID_LOG_VERBOSE, "SDL", "nativeResume()");
@@ -389,7 +490,7 @@ JNIEXPORT void JNICALL Java_org_libsdl_app_SDLActivity_nativeResume(
     }
 }
 
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLInputConnection_nativeCommitText(
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE_INPUT_CONNECTION(nativeCommitText)(
                                     JNIEnv* env, jclass cls,
                                     jstring text, jint newCursorPosition)
 {
@@ -400,7 +501,7 @@ JNIEXPORT void JNICALL Java_org_libsdl_app_SDLInputConnection_nativeCommitText(
     (*env)->ReleaseStringUTFChars(env, text, utftext);
 }
 
-JNIEXPORT void JNICALL Java_org_libsdl_app_SDLInputConnection_nativeSetComposingText(
+JNIEXPORT void JNICALL SDL_JAVA_INTERFACE_INPUT_CONNECTION(nativeSetComposingText)(
                                     JNIEnv* env, jclass cls,
                                     jstring text, jint newCursorPosition)
 {
@@ -411,7 +512,10 @@ JNIEXPORT void JNICALL Java_org_libsdl_app_SDLInputConnection_nativeSetComposing
     (*env)->ReleaseStringUTFChars(env, text, utftext);
 }
 
-JNIEXPORT jstring JNICALL Java_org_libsdl_app_SDLActivity_nativeGetHint(JNIEnv* env, jclass cls, jstring name) {
+JNIEXPORT jstring JNICALL SDL_JAVA_INTERFACE(nativeGetHint)(
+                                    JNIEnv* env, jclass cls,
+                                    jstring name)
+{
     const char *utfname = (*env)->GetStringUTFChars(env, name, NULL);
     const char *hint = SDL_GetHint(utfname);
 
diff --git a/src/core/android/SDL_android.h b/src/core/android/SDL_android.h
index cb7ff0736..a170bfc70 100644
--- a/src/core/android/SDL_android.h
+++ b/src/core/android/SDL_android.h
@@ -82,6 +82,13 @@ jclass Android_JNI_GetActivityClass(void);
 /* Generic messages */
 int Android_JNI_SendMessage(int command, int param);
 
+/* Init */
+JNIEXPORT void JNICALL SDL_Android_Init(JNIEnv* mEnv, jclass cls);
+
+/* MessageBox */
+#include "SDL_messagebox.h"
+int Android_JNI_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid);
+
 /* Ends C function definitions when using C++ */
 #ifdef __cplusplus
 /* *INDENT-OFF* */
diff --git a/src/joystick/android/SDL_sysjoystick.c b/src/joystick/android/SDL_sysjoystick.c
index cbc921082..159f91cb7 100644
--- a/src/joystick/android/SDL_sysjoystick.c
+++ b/src/joystick/android/SDL_sysjoystick.c
@@ -167,7 +167,7 @@ keycode_to_SDL(int keycode)
             
         default:
             return -1;
-            break;
+            /* break; -Wunreachable-code-break */
     }
     
     /* This is here in case future generations, probably with six fingers per hand, 
diff --git a/src/power/android/SDL_syspower.c b/src/power/android/SDL_syspower.c
index 5a4b0fc14..9cc4945db 100644
--- a/src/power/android/SDL_syspower.c
+++ b/src/power/android/SDL_syspower.c
@@ -24,6 +24,7 @@
 #if SDL_POWER_ANDROID
 
 #include "SDL_power.h"
+#include "../SDL_syspower.h"
 
 #include "../../core/android/SDL_android.h"
 
diff --git a/src/video/android/SDL_androidclipboard.c b/src/video/android/SDL_androidclipboard.c
index b996e7a40..2946ed303 100644
--- a/src/video/android/SDL_androidclipboard.c
+++ b/src/video/android/SDL_androidclipboard.c
@@ -23,7 +23,7 @@
 #if SDL_VIDEO_DRIVER_ANDROID
 
 #include "SDL_androidvideo.h"
-
+#include "SDL_androidclipboard.h"
 #include "../../core/android/SDL_android.h"
 
 int
diff --git a/src/video/android/SDL_androidevents.c b/src/video/android/SDL_androidevents.c
index c3cd4cc1b..0666e0083 100644
--- a/src/video/android/SDL_androidevents.c
+++ b/src/video/android/SDL_androidevents.c
@@ -29,19 +29,12 @@
 #include "SDL_events.h"
 #include "SDL_androidwindow.h"
 
+/* Can't include sysaudio "../../audio/android/SDL_androidaudio.h"
+ * because of THIS redefinition */
+extern void ANDROIDAUDIO_ResumeDevices(void);
+extern void ANDROIDAUDIO_PauseDevices(void);
 
-void android_egl_context_backup();
-void android_egl_context_restore();
-
-#if SDL_AUDIO_DRIVER_ANDROID
-void ANDROIDAUDIO_ResumeDevices(void);
-void ANDROIDAUDIO_PauseDevices(void);
-#else
-static void ANDROIDAUDIO_ResumeDevices(void) {}
-static void ANDROIDAUDIO_PauseDevices(void) {}
-#endif
-
-void 
+static void 
 android_egl_context_restore() 
 {
     SDL_Event event;
@@ -55,7 +48,7 @@ android_egl_context_restore()
     }
 }
 
-void 
+static void 
 android_egl_context_backup() 
 {
     /* Keep a copy of the EGL Context so we can try to restore it when we resume */
diff --git a/src/video/android/SDL_androidgl.c b/src/video/android/SDL_androidgl.c
index 4cfe86357..008d8c6cc 100644
--- a/src/video/android/SDL_androidgl.c
+++ b/src/video/android/SDL_androidgl.c
@@ -29,6 +29,7 @@
 #include "SDL_androidwindow.h"
 
 #include "SDL_androidvideo.h"
+#include "SDL_androidgl.h"
 #include "../../core/android/SDL_android.h"
 
 #include <android/log.h>
diff --git a/src/video/android/SDL_androidgl.h b/src/video/android/SDL_androidgl.h
new file mode 100644
index 000000000..21d4df025
--- /dev/null
+++ b/src/video/android/SDL_androidgl.h
@@ -0,0 +1,34 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2016 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"
+
+#ifndef _SDL_androidgl_h
+#define _SDL_androidgl_h
+
+SDL_GLContext Android_GLES_CreateContext(_THIS, SDL_Window * window);
+int Android_GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context);
+void Android_GLES_SwapWindow(_THIS, SDL_Window * window);
+int Android_GLES_LoadLibrary(_THIS, const char *path);
+
+
+#endif /* _SDL_androidgl_h */
+
+/* vi: set ts=4 sw=4 expandtab: */
diff --git a/src/video/android/SDL_androidmessagebox.c b/src/video/android/SDL_androidmessagebox.c
index 61f67636a..634ac7533 100644
--- a/src/video/android/SDL_androidmessagebox.c
+++ b/src/video/android/SDL_androidmessagebox.c
@@ -23,12 +23,12 @@
 #if SDL_VIDEO_DRIVER_ANDROID
 
 #include "SDL_messagebox.h"
+#include "SDL_androidmessagebox.h"
+#include "../../core/android/SDL_android.h"
 
 int
 Android_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid)
 {
-    int Android_JNI_ShowMessageBox(const SDL_MessageBoxData *messageboxdata, int *buttonid);
-
     return Android_JNI_ShowMessageBox(messageboxdata, buttonid);
 }
 
diff --git a/src/video/android/SDL_androidvideo.c b/src/video/android/SDL_androidvideo.c
index 178a3e691..9611017a4 100644
--- a/src/video/android/SDL_androidvideo.c
+++ b/src/video/android/SDL_androidvideo.c
@@ -33,6 +33,7 @@
 #include "../../events/SDL_windowevents_c.h"
 
 #include "SDL_androidvideo.h"
+#include "SDL_androidgl.h"
 #include "SDL_androidclipboard.h"
 #include "SDL_androidevents.h"
 #include "SDL_androidkeyboard.h"
@@ -47,11 +48,6 @@ static int Android_VideoInit(_THIS);
 static void Android_VideoQuit(_THIS);
 
 #include "../SDL_egl_c.h"
-/* GL functions (SDL_androidgl.c) */
-extern SDL_GLContext Android_GLES_CreateContext(_THIS, SDL_Window * window);
-extern int Android_GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context);
-extern void Android_GLES_SwapWindow(_THIS, SDL_Window * window);
-extern int Android_GLES_LoadLibrary(_THIS, const char *path);
 #define Android_GLES_GetProcAddress SDL_EGL_GetProcAddress
 #define Android_GLES_UnloadLibrary SDL_EGL_UnloadLibrary
 #define Android_GLES_SetSwapInterval SDL_EGL_SetSwapInterval
@@ -65,7 +61,7 @@ extern int Android_GLES_LoadLibrary(_THIS, const char *path);
 int Android_ScreenWidth = 0;
 int Android_ScreenHeight = 0;
 Uint32 Android_ScreenFormat = SDL_PIXELFORMAT_UNKNOWN;
-int Android_ScreenRate = 0;
+static int Android_ScreenRate = 0;
 
 SDL_sem *Android_PauseSem = NULL, *Android_ResumeSem = NULL;