include_guard(GLOBAL)

option(MYX_CMAKE_WARNINGS_NORMAL "Normal level" ON)
cmake_dependent_option(MYX_CMAKE_WARNINGS_VERBOSE "Verbose level" OFF "MYX_CMAKE_WARNINGS_NORMAL" OFF)

if(MYX_CMAKE_WARNINGS_NORMAL)
  if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
    check_enable_cxx_compiler_flag(-Wshadow)
    check_enable_cxx_compiler_flag(-Wtautological-overlap-compare)
    check_enable_cxx_compiler_flag(-Wtautological-compare)
    check_enable_cxx_compiler_flag(-Wtautological-bitwise-compare)
    check_enable_cxx_compiler_flag(-Wbitwise-conditional-parentheses)
    check_enable_cxx_compiler_flag(-Wrange-loop-analysis)
    check_enable_cxx_compiler_flag(-Wmisleading-indentation)
    check_enable_cxx_compiler_flag(-Wc99-designator)
    check_enable_cxx_compiler_flag(-Wreorder-init-list)
    check_enable_cxx_compiler_flag(-Wsizeof-pointer-div)
    check_enable_cxx_compiler_flag(-Wsizeof-array-div)
    check_enable_cxx_compiler_flag(-Wxor-used-as-pow)
    check_enable_cxx_compiler_flag(-Wfinal-dtor-non-final-class)
  endif()

  if((CMAKE_CXX_COMPILER_ID STREQUAL "Clang") OR
     (CMAKE_CXX_COMPILER_ID STREQUAL "GNU"))
    check_enable_cxx_compiler_flag(-Wall)
    check_enable_cxx_compiler_flag(-Wextra)
    check_enable_cxx_compiler_flag(-Wnon-virtual-dtor)
    check_enable_cxx_compiler_flag(-Wlogical-op)
    check_enable_cxx_compiler_flag(-Wconversion)
    check_enable_cxx_compiler_flag(-Wdeprecated)
    check_enable_cxx_compiler_flag(-ftemplate-depth=1024)
    check_enable_cxx_compiler_flag(-Wold-style-cast)
    check_enable_cxx_compiler_flag(-Wdisabled-optimization)
    check_enable_cxx_compiler_flag(-ftemplate-backtrace-limit=0)
    check_enable_cxx_compiler_flag(-fstack-protector-all)
    check_enable_cxx_compiler_flag(-Wodr)
    check_enable_cxx_compiler_flag(-Wsuggest-final-types)
    check_enable_cxx_compiler_flag(-Wsuggest-final-methods)
    check_enable_cxx_compiler_flag(-Wsuggest-override)
    check_enable_cxx_compiler_flag(-fdiagnostics-show-template-tree)

    if(NOT MYX_CMAKE_WARNINGS_VERBOSE)
      check_enable_cxx_compiler_flag(-Wno-float-conversion)
      if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
        if(CMAKE_CXX_COMPILER_VERSION VERSION_GREATER "5.999")
          check_enable_cxx_compiler_flag(-Wno-attributes)
        endif()
        check_enable_cxx_compiler_flag(-Wno-maybe-uninitialized)
      endif()
    endif()
  endif()
endif()

if(MYX_CMAKE_WARNINGS_VERBOSE)
  if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
    check_enable_cxx_compiler_flag(-Wpointer-to-int-cast)
    check_enable_cxx_compiler_flag(-Wuninitialized-const-reference)
    check_enable_cxx_compiler_flag(-Wunused-but-set-parameter)
    check_enable_cxx_compiler_flag(-Wunused-but-set-variable)
    check_enable_cxx_compiler_flag(-Wnull-pointer-subtraction)
    check_enable_cxx_compiler_flag(-Wno-reserved-identifier)
  endif()

  if((CMAKE_CXX_COMPILER_ID STREQUAL "Clang") OR
     (CMAKE_CXX_COMPILER_ID STREQUAL "GNU"))
    check_enable_cxx_compiler_flag(-Wshadow)
    check_enable_cxx_compiler_flag(-Wpedantic)
    check_enable_cxx_compiler_flag(-Wnoexcept)
    check_enable_cxx_compiler_flag(-Wzero-as-null-pointer-constant)
    # From GCC 6.
    check_enable_cxx_compiler_flag(-Wshift-negative-value)
    check_enable_cxx_compiler_flag(-Wshift-overflow=2)
    check_enable_cxx_compiler_flag(-Wduplicated-cond)
    check_enable_cxx_compiler_flag(-Wnull-dereference)
    # From GCC 7.
    check_enable_cxx_compiler_flag(-Wduplicated-branches)
    check_enable_cxx_compiler_flag(-Wrestrict)
    check_enable_cxx_compiler_flag(-Waligned-new)
    # From GCC 8.
    check_enable_cxx_compiler_flag(-Wcast-align=strict)
    # From GCC 10.
    check_enable_cxx_compiler_flag(-Wmismatched-tags)
    check_enable_cxx_compiler_flag(-Wredundant-tags)
    # From GCC 12.
    check_enable_cxx_compiler_flag(-Warray-compare)
    check_enable_cxx_compiler_flag(-Wmissing-requires)
  endif()
endif()