--- lib/Makefile.am.orig	2016-12-28 09:32:00 UTC
+++ lib/Makefile.am
@@ -35,7 +35,8 @@ 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 version.c
+		  color.c version.c error.c obstack.c \
+		  obstack_printf.c
 
 noinst_HEADERS = fixedsizehash.h libeu.h system.h dynamicsizehash.h list.h \
 		 md5.h sha1.h eu-config.h