sv_catpvn(ip_opts,SvPV(*av_fetch(opts,i+2,0),l),
                         SvCUR(*av_fetch(opts,i+2,0)));
       break;
       default:
       }  /* reported error line 444 */

       sv_catpvn(ip_opts,SvPV(*av_fetch(opts,i+2,0),l),
                         SvCUR(*av_fetch(opts,i+2,0)));
       break;
       default:
       }  /* reported error line 543 */

##</code><code>##

sv_catpvn(ip_opts,SvPV(*av_fetch(opts,i+2,0),l),SvCUR(*av_fetch(opts,i+2,0)));

# or

sv_catpvn(ip_opts,SvPV(*av_fetch(opts,i+2,0),l), \
                  SvCUR(*av_fetch(opts,i+2,0)));