It seems that action_env isn't included in ctx.configuration.default_shell_env as per the issue detailed here https://github.com/bazelbuild/bazel/issues/12049.
This means that we can't propagate e.g. LIBRARY_PATH or LD_LIBRARY_PATH which is needed to support some mpi compiler wrappers e.g. with Intel MPI when compiling mpi4py.
It seems that action_env isn't included in
ctx.configuration.default_shell_envas per the issue detailed here https://github.com/bazelbuild/bazel/issues/12049. This means that we can't propagate e.g.LIBRARY_PATHorLD_LIBRARY_PATHwhich is needed to support some mpi compiler wrappers e.g. with Intel MPI when compiling mpi4py.