ubuntu 安装swoole

wget https://github.com/nghttp2/nghttp2/releases/download/v1.30.0/nghttp2-1.30.0.tar.bz2
tar -jxvf nghttp2-1.30.0.tar.bz2
cd nghttp2-1.30.0
./configure
make


wget https://github.com/redis/hiredis/archive/v0.13.3.tar.gz
tar -zxvf v0.13.3.tar.gz
cd hiredis-0.13.3/
make -j
sudo make install
sudo ldconfig

mkdir -p ~/build && 
cd ~/build && 
rm -rf ./swoole-src && 
curl -o ./tmp/swoole.tar.gz https://github.com/swoole/swoole-src/archive/master.tar.gz -L && 
tar zxvf ./tmp/swoole.tar.gz && 
mv swoole-src* swoole-src && 
cd swoole-src && 
phpize && 
./configure 
--enable-coroutine 
--enable-openssl  
--enable-http2  
--enable-async-redis 
--enable-sockets 
--enable-mysqlnd && 
make clean && make && sudo make install

如果ubuntu修改文件的时候一直提示：

sudo：unable to resolve host abc

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那么就需要修改/etc/hosts文件： 
如果之前为

127.0.0.1 localhost

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变更为：

127.0.0.1 localhost
127.0.1.1 hostname