include_guard(GLOBAL)

if(CMAKE_SYSTEM_NAME STREQUAL Linux)
  set(MYX_CMAKE_LSB_DISTRIBUTOR_ID "unknown")
  set(MYX_CMAKE_LSB_CODENAME "unknown")
  set(MYX_CMAKE_LSB_RELEASE_VERSION "unknown")

  if(CMAKE_CROSSCOMPILING)
    return()
  endif()

  if(EXISTS /etc/mcst_version)
    set(MYX_CMAKE_LSB_DISTRIBUTOR_ID "ElbrusD")
    set(MYX_CMAKE_LSB_CODENAME "Jessie")
    execute_process(COMMAND cat /etc/mcst_version
      OUTPUT_VARIABLE MYX_CMAKE_LSB_RELEASE_VERSION
      OUTPUT_STRIP_TRAILING_WHITESPACE)
  else()
    find_program(LSB_RELEASE_EXECUTABLE lsb_release)
    # cmake-format: off
    if(LSB_RELEASE_EXECUTABLE)
      execute_process(COMMAND ${LSB_RELEASE_EXECUTABLE} -si
        OUTPUT_VARIABLE MYX_CMAKE_LSB_DISTRIBUTOR_ID
        OUTPUT_STRIP_TRAILING_WHITESPACE)
      execute_process(COMMAND ${LSB_RELEASE_EXECUTABLE} -sc
        OUTPUT_VARIABLE MYX_CMAKE_LSB_CODENAME
        OUTPUT_STRIP_TRAILING_WHITESPACE)
      execute_process(COMMAND ${LSB_RELEASE_EXECUTABLE} -sr
        OUTPUT_VARIABLE MYX_CMAKE_LSB_RELEASE_VERSION
        OUTPUT_STRIP_TRAILING_WHITESPACE)
    endif()
    # cmake-format: on
  endif()
endif()

if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
  if(CMAKE_COLOR_MAKEFILE)
    check_enable_cxx_compiler_flag(-fdiagnostics-color=auto)
  endif()
endif()

if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
  if(CMAKE_COLOR_MAKEFILE)
    check_enable_cxx_compiler_flag(-fcolor-diagnostics)
  endif()
endif()

if((MYX_CMAKE_LSB_DISTRIBUTOR_ID  STREQUAL "AstraLinuxSE") AND
   (MYX_CMAKE_LSB_CODENAME        STREQUAL "smolensk") AND
   (MYX_CMAKE_LSB_RELEASE_VERSION STREQUAL "1.5"))
  find_program(CMAKE_AR NAMES "/usr/bin/x86_64-linux-gnu-gcc-ar-4.7")
  find_program(CMAKE_NM NAMES "/usr/bin/x86_64-linux-gnu-gcc-nm-4.7")
  find_program(CMAKE_RANLIB NAMES "/usr/bin/x86_64-linux-gnu-gcc-ranlib-4.7")

  set(CMAKE_CXX_STANDARD 11)
  set(CMAKE_CXX_EXTENSIONS ON)
  check_enable_cxx_compiler_flag(-Wno-shadow)
endif()

if((MYX_CMAKE_LSB_DISTRIBUTOR_ID  STREQUAL "ElbrusD") AND
   (MYX_CMAKE_LSB_CODENAME        STREQUAL "Jessie") AND
   (MYX_CMAKE_LSB_RELEASE_VERSION VERSION_GREATER "1.4"))
  find_program(CMAKE_AR NAMES "/usr/${CMAKE_SYSTEM_PROCESSOR}-linux/bin/ar")
  find_program(CMAKE_NM NAMES "/usr/${CMAKE_SYSTEM_PROCESSOR}-linux/bin/nm")
  find_program(CMAKE_RANLIB NAMES "/usr/${CMAKE_SYSTEM_PROCESSOR}-linux/bin/ranlib")

  set(CMAKE_CXX_STANDARD 14)
  set(CMAKE_CXX_EXTENSIONS ON)
  check_enable_cxx_compiler_flag(-Wno-invalid-offsetof)
  list(APPEND CMAKE_LIBRARY_PATH "/usr/lib/e2k-linux-gnu")
endif()