code: def customize_compiler(_config_vars):
      """Customize compiler path and configuration variables.
  
      This customization is performed when the first
      extension module build is requested
      in distutils.sysconfig.customize_compiler.
      """
  
      # Find a compiler to use for extension module builds
      _find_appropriate_compiler(_config_vars)
  
      # Remove ppc arch flags if not supported here
      _remove_unsupported_archs(_config_vars)
  
      # Allow user to override all archs with ARCHFLAGS env var
      _override_all_archs(_config_vars)
  
      return _config_vars
  
imports: import os
  import re
  import sys
label_desc: Use image node_id 18 for calling a global function with example usage: customize_compiler(_config_vars) and returns: _config_vars