In these pages, you will find specific information regarding the compilation of the Elmer/Ice solvers and user functions on Linux/*NIX systems, and explanation on the series of tests that can be used to validate your installation. The compilation instructions above refer to the Cmake build system (introduced in February 2015). Outdated compilation instruction for the (now frozen) SVN version using the GNU autotools can be found from compilation with autotools.
For OS X users the easiest way to get Elmer installed is homebrew. There is a homebrew formula distributed via the github repository and a short description on how to use it (tested with El Capitan) under this link.