use def ANDROID_ENABLED so android features are not included in javascript builds

drivers/gles2/rasterizer_scene_gles2.cpp

@@ -2931,14 +2931,16 @@ void RasterizerSceneGLES2::render_scene(const Transform &p_cam_transform, const
 			glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
 			glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
 #elif IPHONE_ENABLED
+
 			glBindFramebuffer(GL_READ_FRAMEBUFFER, storage->frame.current_rt->multisample_fbo);
 			glBindFramebuffer(GL_DRAW_FRAMEBUFFER, storage->frame.current_rt->fbo);
 			glResolveMultisampleFramebufferAPPLE();
 
 			glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
 			glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
-#else
-			// In GLES2 Blit is not available, so just copy color texture manually
+#elif ANDROID_ENABLED
+
+			// In GLES2 AndroidBlit is not available, so just copy color texture manually
 			_copy_texture_to_front_buffer(storage->frame.current_rt->multisample_color);
 #endif
 		}
@@ -2972,8 +2974,17 @@ void RasterizerSceneGLES2::render_scene(const Transform &p_cam_transform, const
 
 		glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
 		glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
-#else
-		// In GLES2 Blit is not available, so just copy color texture manually
+#elif IPHONE_ENABLED
+
+		glBindFramebuffer(GL_READ_FRAMEBUFFER, storage->frame.current_rt->multisample_fbo);
+		glBindFramebuffer(GL_DRAW_FRAMEBUFFER, storage->frame.current_rt->fbo);
+		glResolveMultisampleFramebufferAPPLE();
+
+		glBindFramebuffer(GL_READ_FRAMEBUFFER, 0);
+		glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
+#elif ANDROID_ENABLED
+
+		// In GLES2 Android Blit is not available, so just copy color texture manually
 		_copy_texture_to_front_buffer(storage->frame.current_rt->multisample_color);
 #endif
 	}

drivers/gles2/rasterizer_storage_gles2.cpp

@@ -91,7 +91,7 @@ GLuint RasterizerStorageGLES2::system_fbo = 0;
 //void *glRenderbufferStorageMultisampleAPPLE;
 //void *glResolveMultisampleFramebufferAPPLE;
 #define glRenderbufferStorageMultisample glRenderbufferStorageMultisampleAPPLE
-#else
+#elif ANDROID_ENABLED
 
 #include <GLES2/gl2ext.h>
 PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC glRenderbufferStorageMultisampleEXT;
@@ -4719,7 +4719,7 @@ void RasterizerStorageGLES2::_render_target_allocate(RenderTarget *rt) {
 		glRenderbufferStorageMultisample(GL_RENDERBUFFER, msaa, color_internal_format, rt->width, rt->height);
 
 		glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rt->multisample_color);
-#else
+#elif ANDROID_ENABLED
 		// Render to a texture in android
 		glGenTextures(1, &rt->multisample_color);
 		glBindTexture(GL_TEXTURE_2D, rt->multisample_color);
@@ -5602,11 +5602,11 @@ void RasterizerStorageGLES2::initialize() {
 	//Manually load extensions for android and ios
 
 #ifdef IPHONE_ENABLED
-
+	// appears that IPhone doesn't need to dlopen TODO: test this rigorously before removing
 	//void *gles2_lib = dlopen(NULL, RTLD_LAZY);
 	//glRenderbufferStorageMultisampleAPPLE = dlsym(gles2_lib, "glRenderbufferStorageMultisampleAPPLE");
 	//glResolveMultisampleFramebufferAPPLE = dlsym(gles2_lib, "glResolveMultisampleFramebufferAPPLE");
-#else
+#elif ANDROID_ENABLED
 
 	void *gles2_lib = dlopen("libGLESv2.so", RTLD_LAZY);
 	glRenderbufferStorageMultisampleEXT = (PFNGLRENDERBUFFERSTORAGEMULTISAMPLEEXTPROC)dlsym(gles2_lib, "glRenderbufferStorageMultisampleEXT");