Allow mkdir localstatedir to fail.

--- a/Makefile.in
+++ b/Makefile.in
@@ -1412,7 +1412,7 @@ uninstall-am: uninstall-binPROGRAMS uninstall-gdmautostart2DATA \


 install-data-local:
-	$(mkdir_p) $(DESTDIR)$(localstatedir)/run/spice-vdagentd
+	-$(mkdir_p) $(DESTDIR)$(localstatedir)/run/spice-vdagentd

 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.