Installation instructions

libcommute is a header-only C++ library, which means it is usable without installation. You can obtain the latest version of the library by making a local clone of its GitHub repository. Assuming that git package is installed and visible via the PATH environment variable, the following shell command will create a directory libcommute.src containing the latest libcommute source files.

$ git clone https://github.com/krivenko/libcommute.git libcommute.src

You can then use libcommute in your own code by passing ‘-I/path/to/libcommute.src/include’ to the compiler command line.

If your project uses CMake as its build system, you might want to install libcommute header files along with CMake configuration scripts. This will allow you to import libcommute targets, as well as to run unit tests and build example programs. The minimum required version of CMake is 3.8.0.

The following sequence of shell commands will build unit tests and examples.

$ mkdir libcommute.build && cd libcommute.build
$ cmake ../libcommute.src                       \
  -DCMAKE_INSTALL_PREFIX=<libcommute_prefix>    \
  -DEXAMPLES=ON                                 \
  -DTESTS=ON
$ make

Compilation of the tests can be disabled with CMake flag -DTESTS=OFF (not recommended). Examples are compiled by default and can be disabled with -DEXAMPLES=OFF.

It is generally recommended to run the unit tests before installing the library to detect potential problems early on.

$ make test

Failed tests (having anything different from Passed in the test result column) signal host-specific compilation/linking problems or bugs in the library itself. The following command completes installation of library’s files into <libcommute_prefix>.

$ make install

Documentation of libcommute can optionally be built and installed using the DOCUMENTATION CMake flag (requires Sphinx 2.1.0 or newer, Read the Docs Sphinx theme , MathJax and MyST Parser).

The table below gives a complete lists of supported CMake options with their meaning.

Option name	Description
`CMAKE_INSTALL_PREFIX`	Path to the directory libcommute will be installed into.
`CMAKE_BUILD_TYPE`	CMake build type (`Release`, `Debug` or `RelWithDebInfo`) used to compile unit tests and examples.
`TESTS=[ON\|OFF]`	Enable/disable compilation of unit tests.
`EXAMPLES=[ON\|OFF]`	Enable/disable compilation of examples.
`DOCUMENTATION=[ON\|OFF]`	Enable/disable generation of libcommute’s Sphinx documentation.
`Sphinx_ROOT`	Path to Sphinx installation.
`MathJax_ROOT`	Path to MathJax installation (directory containing `MathJax.js`).
`Eigen3_ROOT`	Path to Eigen 3 installation (required to build some optional unit tests).
`STATIC_ANALYSIS=[ON\|OFF]`	[DEV] Run static analysis tools on C++ sources of unit tests and examples.
`CLANG_TIDY_EXECUTABLE`	[DEV] Path to the `clang-tidy` executable.
`CPPCHECK_EXECUTABLE`	[DEV] Path to the `cppcheck` executable.
`CPPCHECK_EXTRA_FLAGS`	[DEV] Semicolon-separated list of additional flags to be passed to `cppcheck`.