sprintf(cmd, "applydeltarpm -a '%s' /dev/fd/%d /dev/fd/%d", archstr, fileno(fp), newfd);
#else
sprintf(cmd, "applydeltarpm /dev/fd/%d /dev/fd/%d", fileno(fp), newfd);
sprintf(cmd, "applydeltarpm -a '%s' /dev/fd/%d /dev/fd/%d", archstr, fileno(fp), newfd);
#else
sprintf(cmd, "applydeltarpm /dev/fd/%d /dev/fd/%d", fileno(fp), newfd);