Preventing rebuild of options.o when installing
--- a/Makefile
+++ b/Makefile
@@ -106,7 +106,7 @@
 		rm -f "$$dir/nsxiv.png"; \
 	done

-install: all
+install:
 	@echo "INSTALL bin/nsxiv"
 	mkdir -p $(DESTDIR)$(PREFIX)/bin
 	cp nsxiv $(DESTDIR)$(PREFIX)/bin/
