== System installation ==

This library is header only. So you can either copy `include/cxxopts.hpp` to `/usr/include` or `/usr/local/include`, or add `include` to your search path.

== Building the examples and tests ==

It is preferable to build out of source. Make a build directory somewhere, and then

do the following, where `${CXXOPTS_DIR}` is the path that you checked out `cxxopts`

to:

cmake ${CXXOPTS_DIR}

make

You can use another build tool, such as ninja.

cmake -G Ninja ${CXXOPTS_DIR}

ninja

To run the tests, you have to configure `cxxopts` with another flag:

cmake -D CXXOPTS_BUILD_TESTS=On ${CXXOPTS_DIR}

make

make test