Modern C++ Programming with Test-Driven Development

1.11 Building Examples and Running Tests

Once you’ve installed the appropriate software, you can build any of the example versions and subsequently execute tests. From within an example version directory, you’ll first use CMake to create a makefile.

mkdir build
cd build
cmake ..

The legacy codebase (see Chapter 8, ​Legacy Challenges​) uses ​libraries​ from Boost, not just headers. ​CMakeLists.txt​ uses the BOOST_ROOT environment variable you defined twice: first, explicitly, by ​include_directories​ to indicate where Boost headers can be found, and second, implicitly, when CMake executes ​find_package​ to locate Boost libraries.

When building the legacy codebase, you might receive an error indicating that Boost cannot be found. If so, you ...