Build Issue - URL - msvc-14.0

From: Tom Kent (lists_at_[hidden])
Date: 2022-10-29 01:44:29

In preparation for the upcoming lockdown and release, I just grabbed the
latest snapshot from here:
https://boostorg.jfrog.io/artifactory/main/master/boost_1_81_0-snapshot.tar.bz2

I ran it through the build process and got some issues with boost::url
running on msvc-14.0.

Some examples of them are:
D:\RB\boost_1_81_0\boost/url/param.hpp(886): error C2134:
'boost::urls::grammar::string_view_base::string_view_base': call does not
result in a constant expression
D:\RB\boost_1_81_0\boost/url/param.hpp(886): note: failure was caused by
call of undefined function or one not declared 'constexpr'

The full output log is here:
https://gist.github.com/teeks99/8d14da5b50cffda13f9ad5e23a8d80aa

Tom