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BUILD.md

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Build instructions

Requirements

This project depends on Qpid Cpp and Qpid Proton messaging libraries. These have their own dependencies in turn. Here is (possibly incomplete) list for Fedora/RHEL to install. (In other words, the build is not hermetic/self-contained, not even with Bazel.)

Cli Cpp

  • boost_regex

Proton Cpp

Two ways to build

This project can be built either with CMake, or with CMake executed by Bazel.

CMake build

cmake
-DProton_DIR=... -DProtonCpp_DIR=... -DENABLE_QPID_PROTON=ON -DCMAKE_USER_C_FLAGS='-std=c++11'

Bazel command line

Bazel is used to also build the dependencies, qpid-cpp and qpid-proton.

bazelisk build //:cli-cpp --enable_bzlmod --//:deps=upstream

You can tell Bazel not to build these dependencies, and they will be then picked by CMake from system location.

bazelisk build //:cli-cpp --enable_bzlmod --//:deps=rpms

When building with ccache, add the following

--sandbox_writable_path=$HOME/.ccache

To run the built binaries, use

LD_LIBRARY_PATH=bazel-bin/copy_qpid-proton/qpid-proton/lib64 bazel-bin/copy_cli-cpp/cli-cpp/bin/aac3_sender --help

Troubleshooting

Preserve sandbox with --sandbox_debug flag. Get more output with --verbose_failures flag.

Disable sandbox with --spawn_strategy=standalone flag, use values of processwrapper-sandbox, linux-sandbox, ...

If Proton fails to link, complaining about missing main, try adding bazel option --linkopt="-fuse-ld=gold". See bazel-contrib/rules_foreign_cc#863.

CMake build

If you want to use the dependencies built by Bazel in your CMake build, do this.

mkdir ext_build_deps
ln -s `pwd`/bazel-bin/copy_*/*/lib64/cmake/*/*.cmake ext_build_deps/
ln -s `pwd`/bazel-bin/copy_*/* ext_build_deps/
cmake -DCMAKE_PREFIX_PATH=`pwd`/cmake_module_path -DEXT_BUILD_DEPS=`pwd`/cmake_module_path

Flags for libraries

See BUILD.bazel for qpid-cpp and qpid-proton flags. The idea is to build as little as possible.

Design considerations

It makes sense to build cli-cpp with libs from RPM, libs from upstream, or local checkout.

Further, it makes sense to mix and match tools such as ninja, make, ccache.

Next, the Debug/Release build should be selected as needed.

Bazel can provide caching of build actions, and it can be used both in CI or locally.

Rebuild images

podman build -f Dockerfile.fedora37_epel -t quay.io/jdanek/cli-cpp_fedora37_epel
podman build -f Dockerfile.ubi8_epel -t quay.io/jdanek/cli-cpp_ubi8_epel
podman build -f Dockerfile.ubi8_upstream -t quay.io/jdanek/cli-cpp_ubi8_upstream

podman push quay.io/jdanek/cli-cpp_fedora37_epel
podman push quay.io/jdanek/cli-cpp_ubi8_epel
podman push quay.io/jdanek/cli-cpp_ubi8_upstream