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

How to Install Libtool on Debian Gnu/Linux Distro

GNU/Linux Debian Installing Libtool Guide

How to Install Libtool on Debian GNU/Linux Distribution – Step by step Tutorial.

And GNU Libtool for Debian is a generic Library support Script that hides the complexity of using shared Libraries behind a consistent, portable Interface.

To use Libtool, add the new generic Library building Commands to your Makefile, Makefile.in, or Makefile.am. See the Documentation for details>.

How to Install Libtool on Debian GNU/Linux Distro

GNU/Linux Debian Libtool Installation Guide