The files in this directory are mostly for dealing with dependencies.

We use ExternalProject to download and build missing dependencies, during CMake's configuration time.

Still TODO for CMake support:

• Benchmarks.
• Top-level examples other than helloworld.
• Leaf examples (e.g. trace/examples/ dir).
• Exporters other than stdout.
• CI (Travis) support.
• No shared library for now.

cmake -H. -B.build
cmake --build .build
(cd .build && ctest --output-on-failure)
./.build/examples/helloworld/opencensus_examples_helloworld

Using .build as the build dir so that it doesn't collide with the uppercase BUILD file on Windows.