cc_ccache_get_change_time
#ifdef cc_ccache_get_change_time
err = cc_ccache_get_change_time(ccache, NULL); // passed NULL to compare against because intention is actually to pass bad param instead
err = cc_ccache_get_change_time(ccache, &this_time);
#ifndef cc_ccache_get_change_time
err = cc_ccache_get_change_time(ccache_1, &last_time_1);
err = cc_ccache_get_change_time(ccache_2, &last_time_2);