GLEW - The OpenGL Extension Wrangler Library
http://glew.sourceforge.net/
https://github.com/nigels-com/glew
See doc/index.html for more information.
If you downloaded the tarball from the GLEW website, you just need to:
Unix:
make
sudo -s
make install
make clean
Windows:
use the project file in build/vc12/
If you wish to build GLEW from scratch (update the extension data from
the net or add your own extension information), you need a Unix
environment (including wget, perl, and GNU make). The extension data
is regenerated from the top level source directory with:
make extensions
An alternative to generating the GLEW sources from scratch is to
download a pre-generated (unsupported) snapshot:
https://sourceforge.net/projects/glew/files/glew/snapshots/