diff --git a/engine/client/console.c b/engine/client/console.c
index 6f2624d0..8699e48c 100644
--- a/engine/client/console.c
+++ b/engine/client/console.c
@@ -596,7 +596,7 @@ static qboolean Con_LoadVariableWidthFont( const char *fontname, cl_font_t *font
 		if( buffer && length >= sizeof( qfont_t ))
 		{
 			src = (qfont_t *)buffer;
-			font->charHeight = src->rowheight * con_fontscale->value;;
+			font->charHeight = src->rowheight * con_fontscale->value;
 			font->type = FONT_VARIABLE;
 
 			// build rectangles
@@ -606,7 +606,7 @@ static qboolean Con_LoadVariableWidthFont( const char *fontname, cl_font_t *font
 				font->fontRc[i].right = font->fontRc[i].left + src->fontinfo[i].charwidth;
 				font->fontRc[i].top = (word)src->fontinfo[i].startoffset / fontWidth;
 				font->fontRc[i].bottom = font->fontRc[i].top + src->rowheight;
-				font->charWidths[i] = src->fontinfo[i].charwidth * con_fontscale->value;;
+				font->charWidths[i] = src->fontinfo[i].charwidth * con_fontscale->value;
 			}
 			font->valid = true;
 		}
diff --git a/engine/client/in_evdev.c b/engine/client/in_evdev.c
index cd09437e..b3093f21 100644
--- a/engine/client/in_evdev.c
+++ b/engine/client/in_evdev.c
@@ -37,7 +37,7 @@ struct evdev_s
 
 int KeycodeFromEvdev(int keycode, int value);
 
-static void Evdev_CheckPermissions()
+static void Evdev_CheckPermissions( void )
 {
 #ifdef __ANDROID__
 	system( "su 0 chmod 664 /dev/input/event*" );
@@ -226,7 +226,7 @@ void Evdev_CloseDevice_f ( void )
 	}
 }
 
-void IN_EvdevFrame ()
+void IN_EvdevFrame ( void )
 {
 	int dx = 0, dy = 0, i;
 
diff --git a/engine/common/sys_con.c b/engine/common/sys_con.c
index 7541729b..0a18445e 100644
--- a/engine/common/sys_con.c
+++ b/engine/common/sys_con.c
@@ -22,7 +22,7 @@ GNU General Public License for more details.
 #define XASH_COLORIZE_CONSOLE
 // use with caution, running engine in Qt Creator may cause a freeze in read() call
 // I was never encountered this bug anywhere else, so still enable by default
-#define XASH_USE_SELECT
+// #define XASH_USE_SELECT
 #endif
 
 #ifdef XASH_USE_SELECT
diff --git a/engine/platform/android/android.c b/engine/platform/android/android.c
index 9a74622a..583bb4c6 100644
--- a/engine/platform/android/android.c
+++ b/engine/platform/android/android.c
@@ -181,7 +181,7 @@ Lock event queue and return pointer to next event.
 Caller must do Android_PushEvent() to unlock queue after setting parameters.
 ========================
 */
-event_t *Android_AllocEvent()
+event_t *Android_AllocEvent( void )
 {
 	Android_Lock();
 	if( events.count == ANDROID_MAX_EVENTS )
@@ -418,6 +418,7 @@ DECLARE_JNI_INTERFACE( void, nativeBall, jint id, jbyte ball, jshort xrel, jshor
 
 DECLARE_JNI_INTERFACE( void, nativeHat, jint id, jbyte hat, jbyte key, jboolean down )
 {
+	event_t *event = Android_AllocEvent();
 	static byte engineKeys;
 
 	if( !key )
@@ -428,7 +429,6 @@ DECLARE_JNI_INTERFACE( void, nativeHat, jint id, jbyte hat, jbyte key, jboolean
 	else
 		engineKeys &= ~key;
 
-	event_t *event = Android_AllocEvent();
 	event->type = event_joyhat;
 	event->arg = id;
 	event->hat.hat = hat;
@@ -584,7 +584,7 @@ Android_Init
 Initialize android-related cvars
 ========================
 */
-void Android_Init()
+void Android_Init( void )
 {
 	android_sleep = Cvar_Get( "android_sleep", "1", FCVAR_ARCHIVE, "Enable sleep in background" );
 }
@@ -658,12 +658,14 @@ Android_GetAndroidID
 const char *Android_GetAndroidID( void )
 {
 	static char id[65];
+	const char *resultCStr;
+	jstring resultJNIStr;
 
 	if( id[0] )
 		return id;
 
-	jstring resultJNIStr = (jstring)(*jni.env)->CallStaticObjectMethod( jni.env, jni.actcls, jni.getAndroidId );
-	const char *resultCStr = (*jni.env)->GetStringUTFChars( jni.env, resultJNIStr, NULL );
+	resultJNIStr = (jstring)(*jni.env)->CallStaticObjectMethod( jni.env, jni.actcls, jni.getAndroidId );
+	resultCStr = (*jni.env)->GetStringUTFChars( jni.env, resultJNIStr, NULL );
 	Q_strncpy( id, resultCStr, 64 );
 	(*jni.env)->ReleaseStringUTFChars( jni.env, resultJNIStr, resultCStr );
 
@@ -795,7 +797,7 @@ Android_RunEvents
 Execute all events from queue
 ========================
 */
-void Platform_RunEvents()
+void Platform_RunEvents( void )
 {
 	int i;
 
diff --git a/engine/platform/android/vid_android.c b/engine/platform/android/vid_android.c
index 58610bf9..487a64ff 100644
--- a/engine/platform/android/vid_android.c
+++ b/engine/platform/android/vid_android.c
@@ -63,7 +63,7 @@ Android_SwapBuffers
 Update screen. Use native EGL if possible
 ========================
 */
-void GL_SwapBuffers()
+void GL_SwapBuffers( void )
 {
 	eglSwapBuffers( negl.dpy, negl.surface );
 }
@@ -387,7 +387,7 @@ int GL_GetAttribute( int attr, int *val )
 	return 0;
 }
 
-int R_MaxVideoModes()
+int R_MaxVideoModes( void )
 {
 	return 0;
 }
@@ -417,12 +417,12 @@ void GL_UpdateSwapInterval( void )
 	}
 }
 
-void *SW_LockBuffer()
+void *SW_LockBuffer( void )
 {
 	return NULL;
 }
 
-void SW_UnlockBuffer()
+void SW_UnlockBuffer( void )
 {
 
 }