BOARD_USE_LEGACY_UI := true
-BOARD_SYSTEMIMAGE_PARTITION_SIZE := 1610612736
-BOARD_SYSTEMIMAGE_FILE_SYSTEM_TYPE := squashfs
-BOARD_SYSTEMIMAGE_SQUASHFS_COMPRESSOR := gzip
-#TARGET_USERIMAGES_SPARSE_SQUASHFS_DISABLED := true
+BOARD_SYSTEMIMAGE_PARTITION_SIZE = $(if $(MKSQUASHFS),0,1610612736)
# customize the malloced address to be 16-byte aligned
BOARD_MALLOC_ALIGNMENT := 16