code: def get_c_std_flag(compiler):
      """Detects compiler flag to enable C99"""
      gnu_flag = "-std=c99"
      flag_by_cc = {
          "msvc": None,
          "intelw": "/Qstd=c99",
          "intelem": "-std=c99",
      }
      flag = flag_by_cc.get(compiler.compiler_type, gnu_flag)
  
      if flag is None:
          return None
  
      if has_flag(compiler, flag, ext=".c"):
          return flag
  
      from numpy.distutils import log
  
      log.warn("Could not detect c99 standard flag")
      return None
  
file_path: catboost/contrib/python/scipy/py3/scipy/_build_utils/compiler_helper.py
imports: import tempfile
  import os
  import sys
  from numpy.distutils.system_info import dict_append
label_desc: Use image node_id 4 for calling a global function with example usage: get_c_std_flag(compiler) and returns: None, None, flag