$OpenBSD$
--- Makefile.orig	Fri Oct 19 17:37:19 2012
+++ Makefile	Wed Dec 26 22:48:12 2012
@@ -2043,7 +2043,7 @@ endif
 ifeq ($(OS_TARGET),emx)
 	$(COPY) $(addprefix $(CVSINSTALL)/binos2/,*.ico *.dll) $(INSTALL_BINDIR)
 endif
-ifneq ($(findstring $(OS_TARGET),linux freebsd sunos qnx),)
+ifneq ($(findstring $(OS_TARGET),linux freebsd openbsd sunos qnx),)
 	$(MAKE) -C $(CVSINSTALL)/man installman
 endif
 endif
