_pblock_assert_pb_mr(Slapi_PBlock *pblock)
{
    if (pblock->pb_mr == NULL) {
        pblock->pb_mr = (slapi_pblock_matching_rule *)slapi_ch_calloc(1, sizeof(slapi_pblock_matching_rule));
    }
}
_pblock_assert_pb_mr(Slapi_PBlock *pblock)
{
    if (pblock->pb_mr == NULL) {
        pblock->pb_mr = (slapi_pblock_matching_rule *)slapi_ch_calloc(1, sizeof(slapi_pblock_matching_rule));
    }
}