--- lib/Makefile.am.orig	2016-07-13 07:11:15 UTC
+++ lib/Makefile.am
@@ -35,7 +35,7 @@ noinst_LIBRARIES = libeu.a
 
 libeu_a_SOURCES = xstrdup.c xstrndup.c xmalloc.c next_prime.c \
 		  crc32.c crc32_file.c md5.c sha1.c \
-		  color.c
+		  color.c error.c obstack.c obstack_printf.c
 
 noinst_HEADERS = fixedsizehash.h system.h dynamicsizehash.h list.h md5.h \
 		 sha1.h eu-config.h