disable opengles for Android by default

CMakeLists.txt

@@ -190,10 +190,6 @@ if (WIN32)
     add_definitions(-DNOMINMAX -DWIN32_LEAN_AND_MEAN)
 endif()
 
-if (ANDROID)
-    set(OPENGL_ES TRUE CACHE BOOL "enable opengl es support for android" FORCE)
-endif (ANDROID)
-
 option(OPENGL_ES "enable opengl es support" FALSE )
 
 if (OPENGL_ES)
@@ -566,7 +562,9 @@ endif(WIN32)
 # Extern
 add_subdirectory (extern/osg-ffmpeg-videoplayer)
 add_subdirectory (extern/oics)
-add_subdirectory (extern/osgQt)
+if (USE_QT)
+    add_subdirectory (extern/osgQt)
+endif()
 
 # Components
 add_subdirectory (components)

components/sdlutil/sdlgraphicswindow.cpp

@@ -91,7 +91,7 @@ void GraphicsWindowSDL2::init()
     SDL_Window *oldWin = SDL_GL_GetCurrentWindow();
     SDL_GLContext oldCtx = SDL_GL_GetCurrentContext();
    
-#ifdef OPENGL_ES
+#if defined(OPENGL_ES) || defined(ANDROID)
      SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
      SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 1);
      SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);