--- a/dav/Makefile	Fri Feb 12 18:26:58 2016 +0100
+++ b/dav/Makefile	Fri Feb 26 20:54:42 2016 +0100
@@ -31,12 +31,14 @@
 DAV_SRC  = main.c
 DAV_SRC += config.c
 DAV_SRC += optparser.c
+DAV_SRC += error.c
 
 SYNC_SRC = sync.c
 SYNC_SRC += config.c
 SYNC_SRC += scfg.c
 SYNC_SRC += sopt.c
 SYNC_SRC += db.c
+SYNC_SRC += error.c
 
 
 DAV_OBJ = $(DAV_SRC:%.c=../build/tool/%$(OBJ_EXT))