.h file are not part of the dev package only the content of doc

[Frédéric Pakin]

While deploying the package no header files are installed in /usr/include

Going to the source of the package and using their source zip it appears the Makefile / ubuntu build process is incomplete and buggy (looks like the lib is mainly maintained for windows).
To alleviate, I had to:
- launch the top make in the source tree to get things going
- go to include sub dir in source tree and force a second make to have the include tree populated
- cp -R noise/include /usr/include

fred@fred-VirtualBox:/usr/include/noise$ lsb_release -rd
Description: Ubuntu 18.04.3 LTS
Release: 18.04

fred@fred-VirtualBox:/usr/include/noise$ apt-cache policy libnoise-dev
libnoise-dev:
  Installed: 1.0.0+repack-1
  Candidate: 1.0.0+repack-1
  Version table:
 *** 1.0.0+repack-1 500
        500 http://fr.archive.ubuntu.com/ubuntu bionic/universe amd64 Packages
        100 /var/lib/dpkg/status

[Juhani Numminen (jsonic)]

In fact the header files are installed in /usr/include, more specifically in /usr/include/libnoise. Please re-check the contents of the package (dpkg -L libnoise-dev).