$OpenBSD$

Remove GNUism from cp.

Index: xschem_library/Makefile
--- xschem_library/Makefile.orig
+++ xschem_library/Makefile
@@ -4,10 +4,10 @@ include ../Makefile.conf
 
 install: FORCE
 	mkdir -p $(XSHAREDIR)/xschem_library
-	cp -ru mylib $(XSHAREDIR)/xschem_library
-	cp -ru devices $(XSHAREDIR)/xschem_library
-	cp -ru examples $(XSHAREDIR)/xschem_library
-	cp -ru pcb $(XSHAREDIR)/xschem_library
+	cp -R mylib $(XSHAREDIR)/xschem_library
+	cp -R devices $(XSHAREDIR)/xschem_library
+	cp -R examples $(XSHAREDIR)/xschem_library
+	cp -R pcb $(XSHAREDIR)/xschem_library
 
 uninstall: FORCE
 	rm -rf $(XDOCDIR)/doc
