X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?p=pintos-anon;a=blobdiff_plain;f=src%2FMakefile.userprog;h=0df391a24ed164db4fc6febe3d44c33443a30769;hp=f90b08c965e365022aa78b0d97eb417c0160c6b4;hb=59f738d500f51ffc5f487344865b8bed69c26281;hpb=4ae5b30e5eb0be98521235060001c2d6d9828345

diff --git a/src/Makefile.userprog b/src/Makefile.userprog
index f90b08c..0df391a 100644
--- a/src/Makefile.userprog
+++ b/src/Makefile.userprog
@@ -12,7 +12,8 @@ lib_SRC += lib/random.c			# Pseudo-random numbers.
 lib_SRC += lib/stdio.c			# I/O library.
 lib_SRC += lib/stdlib.c			# Utility functions.
 lib_SRC += lib/string.c			# String functions.
-lib_SRC += lib/arithmetic.c
+lib_SRC += lib/arithmetic.c		# 64-bit arithmetic for GCC.
+lib_SRC += lib/ustar.c			# Unix standard tar format utilities.
 
 # User level only library code.
 lib/user_SRC  = lib/user/debug.c	# Debug helpers.