old_contents: # --------------------------------------------------------------------------------------
  # Copyright (c) 2014-2022, Nucleic Development Team.
  #
  # Distributed under the terms of the BSD 3-Clause License.
  #
  # The full license is in the file LICENSE, distributed with this software.
  # --------------------------------------------------------------------------------------
  import os
  import sys
  
  from setuptools.command.build_ext import build_ext
  
  from .version import __version__, __version_info__
  
  
  def get_include():
      import os
      return os.path.join(os.path.dirname(__file__), 'include')
  
  
  class CppyBuildExt(build_ext):
      """A custom build extension enforcing c++11 standard on all platforms.
  
      On Windows, FH4 Exception Handling can be disabled by setting the CPPY_DISABLE_FH4
      environment variable. This avoids requiring VCRUNTIME140_1.dll
  
      """
  
      # MSVC does not have a c++11 flag and default to c++14 anyway
      c_opts = {"msvc": ["/EHsc"], "unix": ["-std=c++11"]}
  
      def build_extensions(self):
  
          ct = self.compiler.compiler_type
          opts = self.c_opts.get(ct, [])
          cppy_includes = get_include()
  
          for ext in self.extensions:
              ext.include_dirs.insert(0, cppy_includes)
              ext.extra_compile_args = opts
              if sys.platform == "darwin":
                  # Only Unix compilers and their ports have `compiler_so` so on MacOS
                  # we can sure it will be present.
                  compiler_cmd = self.compiler.compiler_so
                  # Check if we are using Clang, accounting for absolute path
                  if compiler_cmd is not None and 'clang' in compiler_cmd[0]:
                      # If so ensure we use a recent enough version of the stdlib
                      ext.extra_compile_args += ["-stdlib=libc++"]
                      ext.extra_link_args += ["-stdlib=libc++"]
              if ct == "msvc" and os.environ.get("CPPY_DISABLE_FH4"):
                  # Disable FH4 Exception Handling implementation so that we don't
                  # require VCRUNTIME140_1.dll. For more details, see:
                  # https://devblogs.microsoft.com/cppblog/making-cpp-exception-handling-smaller-x64/
                  # https://github.com/joerick/cibuildwheel/issues/423#issuecomment-677763904
                  ext.extra_compile_args.append("/d2FH4-")
          build_ext.build_extensions(self)
  
  
new_contents: # --------------------------------------------------------------------------------------
  # Copyright (c) 2014-2022, Nucleic Development Team.
  #
  # Distributed under the terms of the BSD 3-Clause License.
  #
  # The full license is in the file LICENSE, distributed with this software.
  # --------------------------------------------------------------------------------------
  import os
  import sys
  
  from setuptools.command.build_ext import build_ext
  
  from .version import __version__, __version_info__
  
  
  def get_include():
      import os
      return os.path.join(os.path.dirname(__file__), 'include')
  
  
  class CppyBuildExt(build_ext):
      """A custom build extension enforcing c++11 standard on all platforms.
  
      On Windows, FH4 Exception Handling can be disabled by setting the CPPY_DISABLE_FH4
      environment variable. This avoids requiring VCRUNTIME140_1.dll
  
      """
  
      # MSVC does not have a c++11 flag and default to c++14 anyway
      c_opts = {"msvc": ["/EHsc"], "unix": ["-std=c++11"]}
  
      def build_extensions(self):
  
          ct = self.compiler.compiler_type
          opts = self.c_opts.get(ct, [])
          cppy_includes = get_include()
  
          for ext in self.extensions:
              ext.include_dirs.insert(0, cppy_includes)
              ext.extra_compile_args = opts
              if sys.platform == "darwin":
                  # Only Unix compilers and their ports have `compiler_so` so on MacOS
                  # we can sure it will be present.
                  compiler_cmd = self.compiler.compiler_so
                  # Check if we are using Clang, accounting for absolute path
                  if compiler_cmd is not None and 'clang' in compiler_cmd[0]:
                      # If so ensure we use a recent enough version of the stdlib
                      ext.extra_compile_args += ["-stdlib=libc++"]
                      ext.extra_link_args += ["-stdlib=libc++"]
              if ct == "msvc" and os.environ.get("CPPY_DISABLE_FH4"):
                  # Disable FH4 Exception Handling implementation so that we don't
                  # require VCRUNTIME140_1.dll. For more details, see:
                  # https://devblogs.microsoft.com/cppblog/making-cpp-exception-handling-smaller-x64/
                  # https://github.com/joerick/cibuildwheel/issues/423#issuecomment-677763904
                  ext.extra_compile_args.append("/d2FH4-")
          build_ext.build_extensions(self)
  
  
  __all__ = ["__version__", "__version_info__", "get_include", "CppyBuildExt"]
  
subject: add __all_ to __init__.py