Problem building boost 1.67.0 package

[Aleksandar Valchev <aleksandar.valchev@gmail.com>]

Hi, 

I forked boost and make some updates for version 1.67.0 and add asio and beast libraries. The result is here: https://salsa.debian.org/avalchev-guest/boost. 

I have problems with dpk-buildpackage command: https://salsa.debian.org/snippets/54. 

Do you have any idea what's wrong ?