libhttpserver 依赖libmicrohttpd，所以我们要先安装这个libmicrohttpd
https://ftp.gnu.org/gnu/libmicrohttpd/libmicrohttpd-0.9.59.tar.gz
下载后并解压
./configure; make && make install
完成后最后开始编译libhttpserver
https://github.com/etr/libhttpserver/archive/0.17.0.tar.gz
下载解压到对应目录下执行以下命令
cd example;
sed -i "s/8080/8081/g" `find . -type f` #更换端口
./bootstrap
mkdir build
cd build
../configure
make
make install
export LD_LIBRARY_PATH=/lib:/usr/lib:/usr/local/lib #设置环境变量
./example/hello_world 运行即可
