Index: server/Makefile.in
--- server/Makefile.in.orig
+++ server/Makefile.in
@@ -36,6 +36,7 @@ SOURCES = \
 	security.h \
 	semaphore.c \
 	serial.c \
+	sig_openbsd.c \
 	signal.c \
 	sock.c \
 	symlink.c \
