原文：https://thomashunter.name/blog/install-wget-on-os-x-lion/
安装前需确认已经安装XCODE， XCODE 可以在 app store 上免费下载安装。
然后在命令行中运行如下命令，分别是下载，解压，配置编译环境，编译和编译安装。
最主要是的在./configure 的时候带上带上--with-ssl=openssl， 否则会报错，说ssl没有安装，默认使用GNUTUIL 中的ssl。我就是这里安装不上搜到了本文。
Run the following commands in a terminal window to compile wget on OS X Lion:
curl -O http://ftp.gnu.org/gnu/wget/wget-1.13.4.tar.gz
tar -xzvf wget-1.13.4.tar.gz
cd wget-1.13.4
./configure --with-ssl=openssl
make
sudo make install
which wget #Should output: /usr/local/bin/wgetInstall wget on OS X Lion
2011/11/05
A pre-requisite for this to work is that you have the second disc of utilities that came with your Mac installed. This disc will provide a bunch of utilities required to compile code. Alternatively, you can Install
Xcode from the App Store (it’s free!) and you will get all of the same utilities.
UPDATE: Installing Xcode is no longer good enough.You will now need to open Xcode, go to preferences (Cmd + ,), go to Downloads, and install the Command Line Tools feature. This installs a bunch of development tools onto your system.
Run the following commands in a terminal window to compile wget on OS X Lion:
curl -O http://ftp.gnu.org/gnu/wget/wget-1.13.4.tar.gz
tar -xzvf wget-1.13.4.tar.gz
cd wget-1.13.4
./configure --with-ssl=openssl
make
sudo make install
which wget #Should output: /usr/local/bin/wgetNote the with-ssl=openssl option in the command above. If you omit that, you will get the following error:
... checking for compress in -lz... yes checking for gpg_err_init in -lgpg-error... no checking for gcry_control in -lgcrypt... no checking for libgnutls... no configure: error: --with-ssl was given, but GNUTLS is not available. [email protected]:~/wget-1.13.4 $
The reason for this is that GNUTLS isn’t included with Mac OS X, but the equally usable library OpenSSL is available.