- `gcc 4.8.1<https://gcc.gnu.org/projects/cxx-status.html#cxx11>`_ or higher. For gcc <6.5 you will

need to set ``$CFLAGS=-std=c++11`` to enable C++11 support.

- `clang 3.3<https://clang.llvm.org/cxx_status.html>`_ or higher

`Installing GCC: Binaries<https://gcc.gnu.org/install/binaries.html>`_.

- `clang 3.3<https://clang.llvm.org/cxx_status.html>`_ or higher.

`LLVM Download Page<https://releases.llvm.org/download.html>`_.

- `Visual Studio 2015

<https://docs.microsoft.com/en-us/cpp/overview/visual-cpp-language-conformance?view=msvc-140>`_

(aka VS 14.0) or higher

(aka VS 14.0) or higher. A free version of Build Tools for Visual Studio is available for

`download<https://visualstudio.microsoft.com/downloads/?q=build+tools>`_.

.. _test-dependencies:

Required:

* a minimal working LaTeX distribution

* a minimal working LaTeX distribution, e.g., `TeX Live<https://www.tug.org/texlive/>`_ or

`MikTeX<https://miktex.org/>`_

* `Graphviz<http://www.graphviz.org/download>`_

* the following LaTeX packages (if your OS bundlesTeXLive, the

* the following LaTeX packages (if your OS bundlesTeX Live, the

"complete" version of the installer, e.g. "texlive-full" or "texlive-all",

will often automatically include these packages):