text: # Copyright 2019 The meson development team
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """Abstractions for the Elbrus family of compilers."""
  
  import os
  import typing as T
  import subprocess
  import re
  
  from .gnu import GnuLikeCompiler
  from .gnu import gnu_optimization_args
  from ...mesonlib import Popen_safe
  
  if T.TYPE_CHECKING:
      from ...environment import Environment
  
  
  class ElbrusCompiler(GnuLikeCompiler):
      # Elbrus compiler is nearly like GCC, but does not support
      # PCH, LTO, sanitizers and color output as of version 1.21.x.
  
      def __init__(self) -> None:
          super().__init__()
          self.id = 'lcc'
          self.base_options = ['b_pgo', 'b_coverage',
                               'b_ndebug', 'b_staticpic',
                               'b_lundef', 'b_asneeded']
  
      # FIXME: use _build_wrapper to call this so that linker flags from the env
      # get applied
      def get_library_dirs(self, env: 'Environment', elf_class: T.Optional[int] = None) -> T.List[str]:
          os_env = os.environ.copy()
          os_env['LC_ALL'] = 'C'
          stdo = Popen_safe(self.exelist + ['--print-search-dirs'], env=os_env)[1]
          for line in stdo.split('\n'):
              if line.startswith('libraries:'):
                  # lcc does not include '=' in --print-search-dirs output. Also it could show nonexistent dirs.
                  libstr = line.split(' ', 1)[1]
                  return [os.path.realpath(p) for p in libstr.split(':') if os.path.exists(p)]
          return []
  
      def get_program_dirs(self, env: 'Environment') -> T.List[str]:
          os_env = os.environ.copy()
          os_env['LC_ALL'] = 'C'
          stdo = Popen_safe(self.exelist + ['--print-search-dirs'], env=os_env)[1]
          for line in stdo.split('\n'):
              if line.startswith('programs:'):
                  # lcc does not include '=' in --print-search-dirs output.
                  libstr = line.split(' ', 1)[1]
                  return [os.path.realpath(p) for p in libstr.split(':')]
          return []
  
      def get_default_include_dirs(self) -> T.List[str]:
          os_env = os.environ.copy()
          os_env['LC_ALL'] = 'C'
          p = subprocess.Popen(self.exelist + ['-xc', '-E', '-v', '-'], env=os_env, stdin=subprocess.DEVNULL, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
          stderr = p.stderr.read().decode('utf-8', errors='replace')
          includes = []
          for line in stderr.split('\n'):
              if line.lstrip().startswith('--sys_include'):
                  includes.append(re.sub(r'\s*\\$', '', re.sub(r'^\s*--sys_include\s*', '', line)))
          return includes
  
      def get_optimization_args(self, optimization_level: str) -> T.List[str]:
          return gnu_optimization_args[optimization_level]
  
      def get_pch_suffix(self) -> str:
          # Actually it's not supported for now, but probably will be supported in future
          return 'pch'
  
      def openmp_flags(self) -> T.List[str]:
          return ['-fopenmp']
  