$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install Boost on Mint Gnu/Linux Distro

GNU/Linux Mint Installing Boost C++ Library Guide

Hi! The linked Tutorials shows you Step-by-Step How to Install the Latest Boost C++ Libraries in Mint GNU/Linux Desktopts.

And Boost for Linux Mint provides Free Peer-Reviewed Portable C++ Source Libraries.

They emphasize Libraries that work well with the C++ Standard Library and usable across a Broad Spectrum of Applications.

Finally, this guide includes detailed instructions about to Getting-Started with Boost C++ Libraries on Linux Mint.

Latest Boost Linux Mint Installation Guide - Featured

GNU/Linux Mint Boost C++ Libraries Installation Guide