$OpenBSD$
--- build/server.mk.orig	Fri Apr 25 19:16:11 2008
+++ build/server.mk	Tue Nov  4 13:00:17 2008
@@ -33,7 +33,7 @@ SERVER_SRCS += \
 	shared/infostring.c \
 	shared/shared.c
 
-ifneq ($(findstring $(TARGET_OS), netbsd freebsd linux-gnu),)
+ifneq ($(findstring $(TARGET_OS), netbsd freebsd openbsd linux-gnu),)
 	SERVER_SRCS += \
 		ports/linux/linux_main.c \
 		ports/unix/unix_console.c \