Fixes for Android - finally I have some video output!

But it doesn't work on my PC now

src/scale2x/getopt.cpp

@@ -60,7 +60,7 @@ int getopt(int nargc, char *const nargv[], const char *ostr)
   }
 
   if ((optopt = (int)*place++) == (int)':'
-      || !(oli = strchr(ostr, optopt)))
+      || !(oli = strchr((char *)ostr, optopt)))
   {
     /*
      * if the user didn't specify '-' as an option,

src/sdl/COpenGL.cpp

@@ -9,6 +9,8 @@
 #include "../CLogFile.h"
 #include "CInput.h" // for CInput::renderOverlay
 
+#ifdef USE_OPENGL
+
 #define GAME_STD_WIDTH            320
 #define GAME_STD_HEIGHT           200
 
@@ -229,3 +231,5 @@ void COpenGL::render(bool withFG)
 	
 	SDL_GL_SwapBuffers();
 }
+
+#endif

src/sdl/COpenGL.h

@@ -14,6 +14,8 @@
 
 #include <SDL.h>
 
+#ifdef USE_OPENGL
+
 #if defined(TARGET_OS_IPHONE) || defined(TARGET_IPHONE_SIMULATOR)
 #include <OpenGLES/ES1/gl.h>
 #include <OpenGLES/ES1/glext.h>
@@ -49,3 +51,5 @@ private:
 };
 
 #endif
+
+#endif

src/sdl/CVideoDriver.cpp

@@ -314,7 +314,7 @@ bool CVideoDriver::applyMode(void)
 
 	m_Resolution = *m_Resolution_pos;
 
-#ifndef WIZ
+#if ! defined(WIZ) && ! defined(ANDROID)
 	// Support for doublebuffering
 	Mode |= SDL_DOUBLEBUF;
 #endif