diff --git a/libgralloc/Android.mk b/libgralloc/Android.mk
index e893259..57010aa 100644
--- a/libgralloc/Android.mk
+++ b/libgralloc/Android.mk
@@ -52,6 +52,10 @@ endif
 ifeq ($(TARGET_GRALLOC_USES_ASHMEM),true)
     LOCAL_CFLAGS += -DUSE_ASHMEM
 endif
+ifeq ($(TARGET_USES_POST_PROCESSING),true)
+LOCAL_CFLAGS += -DUSES_POST_PROCESSING
+LOCAL_C_INCLUDES += $(TARGET_OUT_HEADERS)/pp/inc
+endif
 
 include $(BUILD_SHARED_LIBRARY)
 
diff --git a/libhwcomposer/Android.mk b/libhwcomposer/Android.mk
index e20a853..f9e34db 100644
--- a/libhwcomposer/Android.mk
+++ b/libhwcomposer/Android.mk
@@ -34,5 +34,9 @@ endif
 ifeq ($(TARGET_USE_HDMI_AS_PRIMARY),true)
 LOCAL_CFLAGS += -DHDMI_AS_PRIMARY
 endif
+ifeq ($(TARGET_USES_POST_PROCESSING),true)
+LOCAL_CFLAGS += -DUSES_POST_PROCESSING
+LOCAL_C_INCLUDES += $(TARGET_OUT_HEADERS)/pp/inc
+endif
 LOCAL_MODULE_TAGS := optional
 include $(BUILD_SHARED_LIBRARY)