cc_ccache_get_kdc_time_offset
#ifndef cc_ccache_get_kdc_time_offset
#ifdef cc_ccache_get_kdc_time_offset
err = cc_ccache_get_kdc_time_offset(ccache, credentials_version, time_offset);
err = cc_ccache_get_kdc_time_offset(ccache, credentials_version, &stored_offset);
err = cc_ccache_get_kdc_time_offset(ccache, credentials_version, &stored_offset);
err = cc_ccache_get_kdc_time_offset (in_ccache, cc_credentials_v5,