SF now synchronizes to VSYNC

Change-Id: Ic5e4f2ea9927ce133eef9499c03161325e9d02c5
diff --git a/services/surfaceflinger/Android.mk b/services/surfaceflinger/Android.mk
index 95d651a..732af53 100644
--- a/services/surfaceflinger/Android.mk
+++ b/services/surfaceflinger/Android.mk
@@ -23,18 +23,22 @@
 LOCAL_CFLAGS:= -DLOG_TAG=\"SurfaceFlinger\"
 LOCAL_CFLAGS += -DGL_GLEXT_PROTOTYPES -DEGL_EGLEXT_PROTOTYPES
 
+ifeq ($(TARGET_HAS_WAITFORVSYNC), true)
+	LOCAL_CFLAGS += -DHAS_WAITFORVSYNC
+endif
+
 ifeq ($(TARGET_BOARD_PLATFORM), omap3)
 	LOCAL_CFLAGS += -DNO_RGBX_8888
 endif
 ifeq ($(TARGET_BOARD_PLATFORM), omap4)
 	LOCAL_CFLAGS += -DHAS_CONTEXT_PRIORITY
+	LOCAL_CFLAGS += -DUSE_TRIPLE_BUFFERING=1
 endif
 ifeq ($(TARGET_BOARD_PLATFORM), s5pc110)
 	LOCAL_CFLAGS += -DHAS_CONTEXT_PRIORITY -DNEVER_DEFAULT_TO_ASYNC_MODE
 	LOCAL_CFLAGS += -DREFRESH_RATE=56
 endif
 
-
 LOCAL_SHARED_LIBRARIES := \
 	libcutils \
 	libhardware \