Install package igraph on MacOSX or in Ubuntu

I fail to install this package from source. However the macbinary can be installed fine.

> library(HelpersMG)
Le chargement a nécessité le package : coda
> wget("https://cran.r-project.org/bin/macosx/el-capitan/contrib/3.4/igraph_1.1.2.tgz")
essai de l'URL 'https://cran.r-project.org/bin/macosx/el-capitan/contrib/3.4/igraph_1.1.2.tgz'
Content type 'application/x-gzip' length 6928223 bytes (6.6 MB)
==================================================
downloaded 6.6 MB

> install.packages("igraph_1.1.2.tgz", repos=NULL)
* installing *binary* package ‘igraph’ ...
* DONE (igraph)

For Ubuntu 16.04:

apt-get update     # refresh
apt-get install software-properties-common
add-apt-repository -y "ppa:marutter/rrutter"
add-apt-repository -y "ppa:marutter/c2d4u"
apt-get update     # now with new repos
apt-get install r-cran-igraph

News: 
In ubuntu 22.04:
sudo apt-get install libglpk-dev
In MacOSX:
On Macs with glpk homebrew install, which puts glpk in /usr/local/lib set export CPATH=/usr/local/includethen it works :)

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