IS_RBEXT           90 load.c         	    if (IS_RBEXT(&name[n+len+1])) return p;
IS_RBEXT          161 load.c         	if ((rb || !ext) && (IS_RBEXT(e))) {
IS_RBEXT          185 load.c         	    return !IS_RBEXT(ext) ? 's' : 'r';
IS_RBEXT          227 load.c         	if (IS_RBEXT(ext)) {
IS_RBEXT          444 load.c         	if (IS_RBEXT(ext)) {