小白编译aria2出现不能解析域名的问题，使用IP可以正常下载

[sbdx]

群晖213j没有合适的aria2，自己编译一个，但是执行的时候提示无法解析域名，很奇怪，wget是没有问题的。

root@MyNAS:/volume2/TDDOWNLOAD# cat /proc/cpuinfo
Processor	: Marvell PJ4Bv7 Processor rev 1 (v7l)
Hardware	: Marvell Armada-370

root@MyNAS:/volume2/TDDOWNLOAD# aria2c -v
aria2 version 1.33.1

root@MyNAS:/volume2/TDDOWNLOAD# wget http://ws1.sinaimg.cn/large/6a155794ly1fkx1uhxfz6j2039012wen.jpg
--2018-05-19 11:28:19-- http://ws1.sinaimg.cn/large/6a155794ly1fkx1uhxfz6j2039012wen.jpg
Resolving ws1.sinaimg.cn... 202.102.94.124
Connecting to ws1.sinaimg.cn|202.102.94.124|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 16360 (16K) [text/plain]
Saving to: '6a155794ly1fkx1uhxfz6j2039012wen.jpg'

100%[================================================================================>] 16,360 --.-K/s in 0.006s

2018-05-19 11:28:20 (2.47 MB/s) - '6a155794ly1fkx1uhxfz6j2039012wen.jpg' saved [16360/16360]

root@MyNAS:/volume2/TDDOWNLOAD# aria2c http://ws1.sinaimg.cn/large/6a155794ly1fkx1uhxfz6j2039012wen.jpg

05/19 11:28:24 [NOTICE] Downloading 1 item(s)

05/19 11:28:24 [ERROR] CUID#7 - Download aborted. URI=http://ws1.sinaimg.cn/large/6a155794ly1fkx1uhxfz6j2039012wen.jpg
Exception: [AbstractCommand.cc:351] errorCode=19 URI=http://ws1.sinaimg.cn/large/6a155794ly1fkx1uhxfz6j2039012wen.jpg
-> [NameResolver.cc:60] errorCode=19 Failed to resolve the hostname ws1.sinaimg.cn, cause: No address associated with hostname

05/19 11:28:24 [NOTICE] Download GID#8af4475d7d89f77b not complete:

Download Results:
gid |stat|avg speed |path/URI
======+====+===========+=======================================================
8af447|ERR | 0B/s|http://ws1.sinaimg.cn/large/6a155794ly1fkx1uhxfz6j2039012wen.jpg

Status Legend:
(ERR):error occurred.

aria2 will resume download if the transfer is restarted.
If there are any errors, then see the log file. See '-l' option in help/man page for details.

root@MyNAS:~# aria2c --async-dns=false  http://ws1.sinaimg.cn/large/6a155794ly1fkx1uhxfz6j2039012wen.jpg
aria2c: unrecognized option '--async-dns=false'
Usage: aria2c [OPTIONS] [URI | MAGNET | TORRENT_FILE | METALINK_FILE]...
See 'aria2c -h'.

cross build aria2 v1.33.1 for Marvell Armada-370 on Ubuntu 18.04

Build cmdline:
./configure --host=arm-unknown-linux-gnueabi --prefix=/root/soft/aria2 CXX=arm-unknown-linux-gnueabi-g++ CC=arm-unknown-linux-gnueabi-gcc CPP=arm-unknown-linux-gnueabi-cpp CXXFLAGS="-Os" CFLAGS="-Os" ARIA2_STATIC=yes --libdir=/root/soft/arm-unknown-linux-gnueabi/arm-unknown-linux-gnueabi/sysroot/lib