checking host system type... configure: error: can not guess host type; you must specify one

在MAC上安装WGET的时候（根据http://www.arefly.com/mac-wget/），进行到

./configure --with-ssl=openssl

这一步时提示：

creating cache ./config.cache
configuring for GNU Wget 1.6
checking host system type... configure: error: can not guess host type; you must specify one

于是查找资料

./configure --help

找到如下信息：

Host type:
  --build=BUILD           configure for building on BUILD [BUILD=HOST]
  --host=HOST             configure for HOST [guessed]
  --target=TARGET         configure for TARGET [TARGET=HOST]

我想反正就是在这个机器上安装，应该选TARGET，于是

./configure --with-ssl=openssl --host=TARGET

通过，然后再make;sudo make install，一路都是成功