How to use Boost.Beast library

Question

I want to use Boost.Beast

https://github.com/boostorg/beast

and I put header to C file.

sample.c

#include <boost/beast.hpp>

and compiled it.but not working

$ gcc sample.c
sample.c:1:10: fatal error: boost/beast.hpp: No such file or directory
    1 | #include <boost/beast.hpp>
      |          ^~~~~~~~~~~~~~~~~
compilation terminated.

How to solve this? Teach me please.

*later add
I am using Ubuntu 20.04 on Intel

$ git clone --recursive https://github.com/boostorg/boost.git
$ cd beast/
$./bootstrap.sh
$vim sample.c
$ gcc sample.c
sample.c:1:10: fatal error: boost/beast.hpp: No such file or directory
    1 | #include <boost/beast.hpp>
      |          ^~~~~~~~~~~~~~~~~
compilation terminated.