tlsdate: prevent unnecessary rebuilds
am: 75bc1ed95f

* commit '75bc1ed95f269e1274dee1c13a1ce63bb6065ddb':
  tlsdate: prevent unnecessary rebuilds
diff --git a/Android.mk b/Android.mk
index 0e49796..939f9e9 100644
--- a/Android.mk
+++ b/Android.mk
@@ -39,7 +39,7 @@
 define tlsdate_common
   LOCAL_CFLAGS += \
       -DWITH_EVENTS -DHAVE_DBUS -DHAVE_CROS -DHAVE_PV_UIO \
-      -DRECENT_COMPILE_DATE=$(shell date +%sL) \
+      -DRECENT_COMPILE_DATE=$$$(BUILD_DATETIME_FROM_FILE)L \
       -DTARGET_OS_LINUX -Wall -Werror -Wno-unused-parameter
 endef