Building LehrFEM

This page is intended for programmers that want to contribute to LehrFEM++. If you just want to use LehrFEM++, you don't have to build LehrFEM++ yourself, see the getting started guide

Building lehrfem++ with CMake

LehrFEM++ relies on CMake and the Hunter package manager. This makes building LehrFEM++ very simple and easy. Let's assume that you have cloned LehrFEM++ to the lehrfempp directory. You can now proceed as follows:

1. Create a build directory mkdir lehrfempp/build
2. Run CMake from the build directory:

   cd lehrfempp/build
   cmake ..
   

   Note that the first time this can take quite a while because Hunter will download all dependencies (boost, eigen, etc) and compile them.
3. (Optional) Set CMake options (see below)
4. Build LehrFEM++: make -j4
5. (Optional) run tests: ctest

CMake options

Lehrfem++ has a few build options which are initialized to sensible defaults:

Option Name	Description	Default
LF_BUILD_EXAMPLES	Set this to On/Off to build the examples, i.e. all projects in the folders examples and experiments.	On
LF_ENABLE_CLING	Set this to On if you want to link LehrFEM++ with libld. This is required in order to run LehrFEM++ with cling	Off
LF_ENABLE_TESTING	Set this to Off if you don't want to build the tests	On