1. 安装必须的依赖项
sudo apt update
#sudo apt install build-essential autoconf libtool pkg-config libssl-dev libz-dev

2. 下载及编译前准备
cd /opt
mkdir curl && cd curl
mkdir build && mkdir install
git clone https://github.com/curl/curl.git source
cd build

3. Configure
cmake-gui
点击"Configure"按纽, 如图：
将CMAKE_BUILD_TYPE的值设为Release(默认空值)
将CMAKE_INSTALL_PREFIX的value由默认的/usr/local修改为/opt/curl/install

4. Generate
点击"Generate"按纽, 退出gui

5. build && install:
cmake ../source
make -j $(nproc)
make install
make clean

6. 创建include及lib的链接：
ln -sf /opt/curl/install/lib/pkgconfig/libcurl.pc /usr/local/lib/pkgconfig/libcurl.pc

ln -sf /opt/curl/install/include/curl /usr/local/include/curl
ln -sf /opt/curl/install/lib/libcurl.so /usr/local/lib/libcurl.so
7. 查看版本
pkg-config --modversion libcurl