I don't know much about it, because I believe dependency on installed in system libraries lead to non-reproducible builds (each machine is configured differentl

I don't know much about it, because I believe dependency on installed in system libraries lead to non-reproducible builds (each machine is configured differently). Quick googling shows there is a lot of external rules for pkg-config https://github.com/cherrry/bazel_pkg_config https://github.com/cherrry/bazel_pkg_config or rules for building third-parties with cmake https://github.com/bazelbuild/rules_foreign_cc https://github.com/bazelbuild/rules_foreign_cc for example.