builder@3be174728abe:~/workdir$ rm -rf build/
builder@3be174728abe:~/workdir$ CXX=clang++-20 cmake -G Ninja -S . -B build --trace-expand --trace-source=Clang-CXX-CXXImportStd.cmake
Put cmake in trace mode, but with variables expanded.
Put cmake in trace mode, but output only lines of a specified file. Multiple options are allowed.
-- The CXX compiler identification is Clang 20.1.2
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/clang++-20 - skipped
-- Detecting CXX compile features
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(1):  function(_cmake_cxx_import_std std variable )
CMake Warning (dev) at /usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/CMakeCommonCompilerMacros.cmake:248 (cmake_language):
  CMake's support for `import std;` in C++23 and newer is experimental.  It
  is meant only for experimentation and feedback to CMake developers.
Call Stack (most recent call first):
  /usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/CMakeDetermineCompilerSupport.cmake:113 (cmake_create_cxx_import_std)
  /usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/CMakeTestCXXCompiler.cmake:83 (CMAKE_DETERMINE_COMPILER_SUPPORT)
  CMakeLists.txt:41 (project)
This warning is for project developers.  Use -Wno-dev to suppress it.

/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(2):  if(CMAKE_CXX_STANDARD_LIBRARY STREQUAL libc++ )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(4):  elseif(CMAKE_CXX_STANDARD_LIBRARY STREQUAL libstdc++ )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(5):  set(_clang_modules_json_impl libstdc++ )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(13):  execute_process(COMMAND /usr/bin/clang++-20  -print-file-name=libstdc++.modules.json OUTPUT_VARIABLE _clang_libcxx_modules_json_file ERROR_VARIABLE _clang_libcxx_modules_json_file_err RESULT_VARIABLE _clang_libcxx_modules_json_file_res OUTPUT_STRIP_TRAILING_WHITESPACE ERROR_STRIP_TRAILING_WHITESPACE )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(23):  if(_clang_libcxx_modules_json_file_res )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(31):  if(NOT EXISTS /usr/lib/gcc/x86_64-linux-gnu/15/libstdc++.modules.json )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(38):  if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 18.1.2 AND CMAKE_CXX_STANDARD_LIBRARY STREQUAL libc++ )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(49):  file(READ /usr/lib/gcc/x86_64-linux-gnu/15/libstdc++.modules.json _clang_libcxx_modules_json )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(50):  string(JSON _clang_modules_json_version GET {
  "version": 1,
  "revision": 1,
  "modules": [
    {
      "logical-name": "std",
      "source-path": "../include/c++/15/bits/std.cc",
      "is-std-library": true
    },
    {
      "logical-name": "std.compat",
      "source-path": "../include/c++/15/bits/std.compat.cc",
      "is-std-library": true
    }
  ]
}
 version )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(51):  string(JSON _clang_modules_json_revision GET {
  "version": 1,
  "revision": 1,
  "modules": [
    {
      "logical-name": "std",
      "source-path": "../include/c++/15/bits/std.cc",
      "is-std-library": true
    },
    {
      "logical-name": "std.compat",
      "source-path": "../include/c++/15/bits/std.compat.cc",
      "is-std-library": true
    }
  ]
}
 revision )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(53):  if(NOT _clang_modules_json_version EQUAL 1 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(60):  string(JSON _clang_modules_json_nmodules LENGTH {
  "version": 1,
  "revision": 1,
  "modules": [
    {
      "logical-name": "std",
      "source-path": "../include/c++/15/bits/std.cc",
      "is-std-library": true
    },
    {
      "logical-name": "std.compat",
      "source-path": "../include/c++/15/bits/std.compat.cc",
      "is-std-library": true
    }
  ]
}
 modules )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(62):  if(NOT _clang_modules_json_nmodules )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(70):  set(_clang_libcxx_target  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(74):  string(APPEND _clang_libcxx_target add_library(__cmake_cxx23 STATIC)
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(76):  string(APPEND _clang_libcxx_target target_sources(__cmake_cxx23 INTERFACE "$<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,STATIC_LIBRARY>:$<TARGET_OBJECTS:__cmake_cxx23>>")
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(78):  string(APPEND _clang_libcxx_target set_property(TARGET __cmake_cxx23 PROPERTY EXCLUDE_FROM_ALL 1)
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(80):  string(APPEND _clang_libcxx_target set_property(TARGET __cmake_cxx23 PROPERTY CXX_SCAN_FOR_MODULES 1)
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(82):  string(APPEND _clang_libcxx_target set_property(TARGET __cmake_cxx23 PROPERTY CXX_MODULE_STD 0)
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(84):  string(APPEND _clang_libcxx_target target_compile_features(__cmake_cxx23 PUBLIC cxx_std_23)
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(87):  set(_clang_modules_is_stdlib 0 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(88):  set(_clang_modules_include_dirs_list  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(89):  set(_clang_modules_module_paths  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(90):  get_filename_component(_clang_modules_dir /usr/lib/gcc/x86_64-linux-gnu/15/libstdc++.modules.json DIRECTORY )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(93):  math(EXPR _clang_modules_json_nmodules_range 2 - 1 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(94):  foreach(_clang_modules_json_modules_idx RANGE 0 1 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(95):  string(JSON _clang_modules_json_module GET {
  "version": 1,
  "revision": 1,
  "modules": [
    {
      "logical-name": "std",
      "source-path": "../include/c++/15/bits/std.cc",
      "is-std-library": true
    },
    {
      "logical-name": "std.compat",
      "source-path": "../include/c++/15/bits/std.compat.cc",
      "is-std-library": true
    }
  ]
}
 modules 0 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(97):  string(JSON _clang_modules_json_module_source GET {
  "is-std-library" : true,
  "logical-name" : "std",
  "source-path" : "../include/c++/15/bits/std.cc"
} source-path )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(98):  string(JSON _clang_modules_json_module_is_stdlib GET {
  "is-std-library" : true,
  "logical-name" : "std",
  "source-path" : "../include/c++/15/bits/std.cc"
} is-std-library )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(99):  string(JSON _clang_modules_json_module_local_arguments ERROR_VARIABLE _clang_modules_json_module_local_arguments_error GET {
  "is-std-library" : true,
  "logical-name" : "std",
  "source-path" : "../include/c++/15/bits/std.cc"
} local-arguments )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(100):  string(JSON _clang_modules_json_module_nsystem_include_directories ERROR_VARIABLE _clang_modules_json_module_nsystem_include_directories_error LENGTH local-arguments-NOTFOUND system-include-directories )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(102):  if(_clang_modules_json_module_local_arguments_error )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(103):  set(_clang_modules_json_module_local_arguments  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(105):  if(_clang_modules_json_module_nsystem_include_directories_error )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(106):  set(_clang_modules_json_module_nsystem_include_directories 0 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(108):  if(NOT IS_ABSOLUTE ../include/c++/15/bits/std.cc )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(109):  string(PREPEND _clang_modules_json_module_source /usr/lib/gcc/x86_64-linux-gnu/15/ )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(111):  list(APPEND _clang_modules_module_paths /usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.cc )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(114):  if(_clang_modules_json_module_is_stdlib )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(115):  set(_clang_modules_is_stdlib 1 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(118):  if(_clang_modules_json_module_nsystem_include_directories )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(95):  string(JSON _clang_modules_json_module GET {
  "version": 1,
  "revision": 1,
  "modules": [
    {
      "logical-name": "std",
      "source-path": "../include/c++/15/bits/std.cc",
      "is-std-library": true
    },
    {
      "logical-name": "std.compat",
      "source-path": "../include/c++/15/bits/std.compat.cc",
      "is-std-library": true
    }
  ]
}
 modules 1 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(97):  string(JSON _clang_modules_json_module_source GET {
  "is-std-library" : true,
  "logical-name" : "std.compat",
  "source-path" : "../include/c++/15/bits/std.compat.cc"
} source-path )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(98):  string(JSON _clang_modules_json_module_is_stdlib GET {
  "is-std-library" : true,
  "logical-name" : "std.compat",
  "source-path" : "../include/c++/15/bits/std.compat.cc"
} is-std-library )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(99):  string(JSON _clang_modules_json_module_local_arguments ERROR_VARIABLE _clang_modules_json_module_local_arguments_error GET {
  "is-std-library" : true,
  "logical-name" : "std.compat",
  "source-path" : "../include/c++/15/bits/std.compat.cc"
} local-arguments )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(100):  string(JSON _clang_modules_json_module_nsystem_include_directories ERROR_VARIABLE _clang_modules_json_module_nsystem_include_directories_error LENGTH local-arguments-NOTFOUND system-include-directories )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(102):  if(_clang_modules_json_module_local_arguments_error )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(103):  set(_clang_modules_json_module_local_arguments  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(105):  if(_clang_modules_json_module_nsystem_include_directories_error )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(106):  set(_clang_modules_json_module_nsystem_include_directories 0 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(108):  if(NOT IS_ABSOLUTE ../include/c++/15/bits/std.compat.cc )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(109):  string(PREPEND _clang_modules_json_module_source /usr/lib/gcc/x86_64-linux-gnu/15/ )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(111):  list(APPEND _clang_modules_module_paths /usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.compat.cc )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(114):  if(_clang_modules_json_module_is_stdlib )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(115):  set(_clang_modules_is_stdlib 1 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(118):  if(_clang_modules_json_module_nsystem_include_directories )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(133):  set(_clang_modules_base_dirs_list  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(134):  set(_clang_modules_files  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(135):  foreach(_clang_modules_module_path IN LISTS _clang_modules_module_paths )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(136):  get_filename_component(_clang_module_dir /usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.cc DIRECTORY )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(138):  list(APPEND _clang_modules_base_dirs_list /usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(140):  string(APPEND _clang_modules_files  "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.cc" )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(136):  get_filename_component(_clang_module_dir /usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.compat.cc DIRECTORY )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(138):  list(APPEND _clang_modules_base_dirs_list /usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(140):  string(APPEND _clang_modules_files  "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.compat.cc" )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(143):  list(REMOVE_DUPLICATES _clang_modules_base_dirs_list )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(144):  set(_clang_modules_base_dirs  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(145):  foreach(_clang_modules_base_dir IN LISTS _clang_modules_base_dirs_list )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(146):  string(APPEND _clang_modules_base_dirs  "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits" )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(152):  if(_clang_modules_is_stdlib )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(153):  string(APPEND _clang_libcxx_target target_compile_options(__cmake_cxx23 PRIVATE -Wno-reserved-module-identifier)
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(158):  list(REMOVE_DUPLICATES _clang_modules_include_dirs_list )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(159):  set(_clang_modules_include_dirs  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(160):  foreach(_clang_modules_include_dir IN LISTS _clang_modules_include_dirs_list )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(164):  string(APPEND _clang_libcxx_target target_include_directories(__cmake_cxx23 PRIVATE )
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(168):  string(APPEND _clang_libcxx_target target_sources(__cmake_cxx23
  PUBLIC
  FILE_SET std TYPE CXX_MODULES
    BASE_DIRS  "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits"
    FILES  "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.cc" "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.compat.cc")
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(176):  string(PREPEND _clang_libcxx_target if (NOT TARGET "__cmake_cxx23")
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(178):  string(APPEND _clang_libcxx_target endif ()
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(180):  string(APPEND _clang_libcxx_target add_library(__CMAKE::CXX23 ALIAS __cmake_cxx23)
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(183):  set(target_definition if (NOT TARGET "__cmake_cxx23")
add_library(__cmake_cxx23 STATIC)
target_sources(__cmake_cxx23 INTERFACE "$<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,STATIC_LIBRARY>:$<TARGET_OBJECTS:__cmake_cxx23>>")
set_property(TARGET __cmake_cxx23 PROPERTY EXCLUDE_FROM_ALL 1)
set_property(TARGET __cmake_cxx23 PROPERTY CXX_SCAN_FOR_MODULES 1)
set_property(TARGET __cmake_cxx23 PROPERTY CXX_MODULE_STD 0)
target_compile_features(__cmake_cxx23 PUBLIC cxx_std_23)
target_compile_options(__cmake_cxx23 PRIVATE -Wno-reserved-module-identifier)
target_include_directories(__cmake_cxx23 PRIVATE )
target_sources(__cmake_cxx23
  PUBLIC
  FILE_SET std TYPE CXX_MODULES
    BASE_DIRS  "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits"
    FILES  "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.cc" "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.compat.cc")
endif ()
add_library(__CMAKE::CXX23 ALIAS __cmake_cxx23)
 PARENT_SCOPE )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(1):  function(_cmake_cxx_import_std std variable )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(2):  if(CMAKE_CXX_STANDARD_LIBRARY STREQUAL libc++ )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(4):  elseif(CMAKE_CXX_STANDARD_LIBRARY STREQUAL libstdc++ )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(5):  set(_clang_modules_json_impl libstdc++ )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(13):  execute_process(COMMAND /usr/bin/clang++-20  -print-file-name=libstdc++.modules.json OUTPUT_VARIABLE _clang_libcxx_modules_json_file ERROR_VARIABLE _clang_libcxx_modules_json_file_err RESULT_VARIABLE _clang_libcxx_modules_json_file_res OUTPUT_STRIP_TRAILING_WHITESPACE ERROR_STRIP_TRAILING_WHITESPACE )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(23):  if(_clang_libcxx_modules_json_file_res )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(31):  if(NOT EXISTS /usr/lib/gcc/x86_64-linux-gnu/15/libstdc++.modules.json )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(38):  if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 18.1.2 AND CMAKE_CXX_STANDARD_LIBRARY STREQUAL libc++ )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(49):  file(READ /usr/lib/gcc/x86_64-linux-gnu/15/libstdc++.modules.json _clang_libcxx_modules_json )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(50):  string(JSON _clang_modules_json_version GET {
  "version": 1,
  "revision": 1,
  "modules": [
    {
      "logical-name": "std",
      "source-path": "../include/c++/15/bits/std.cc",
      "is-std-library": true
    },
    {
      "logical-name": "std.compat",
      "source-path": "../include/c++/15/bits/std.compat.cc",
      "is-std-library": true
    }
  ]
}
 version )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(51):  string(JSON _clang_modules_json_revision GET {
  "version": 1,
  "revision": 1,
  "modules": [
    {
      "logical-name": "std",
      "source-path": "../include/c++/15/bits/std.cc",
      "is-std-library": true
    },
    {
      "logical-name": "std.compat",
      "source-path": "../include/c++/15/bits/std.compat.cc",
      "is-std-library": true
    }
  ]
}
 revision )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(53):  if(NOT _clang_modules_json_version EQUAL 1 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(60):  string(JSON _clang_modules_json_nmodules LENGTH {
  "version": 1,
  "revision": 1,
  "modules": [
    {
      "logical-name": "std",
      "source-path": "../include/c++/15/bits/std.cc",
      "is-std-library": true
    },
    {
      "logical-name": "std.compat",
      "source-path": "../include/c++/15/bits/std.compat.cc",
      "is-std-library": true
    }
  ]
}
 modules )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(62):  if(NOT _clang_modules_json_nmodules )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(70):  set(_clang_libcxx_target  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(74):  string(APPEND _clang_libcxx_target add_library(__cmake_cxx26 STATIC)
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(76):  string(APPEND _clang_libcxx_target target_sources(__cmake_cxx26 INTERFACE "$<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,STATIC_LIBRARY>:$<TARGET_OBJECTS:__cmake_cxx26>>")
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(78):  string(APPEND _clang_libcxx_target set_property(TARGET __cmake_cxx26 PROPERTY EXCLUDE_FROM_ALL 1)
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(80):  string(APPEND _clang_libcxx_target set_property(TARGET __cmake_cxx26 PROPERTY CXX_SCAN_FOR_MODULES 1)
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(82):  string(APPEND _clang_libcxx_target set_property(TARGET __cmake_cxx26 PROPERTY CXX_MODULE_STD 0)
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(84):  string(APPEND _clang_libcxx_target target_compile_features(__cmake_cxx26 PUBLIC cxx_std_26)
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(87):  set(_clang_modules_is_stdlib 0 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(88):  set(_clang_modules_include_dirs_list  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(89):  set(_clang_modules_module_paths  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(90):  get_filename_component(_clang_modules_dir /usr/lib/gcc/x86_64-linux-gnu/15/libstdc++.modules.json DIRECTORY )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(93):  math(EXPR _clang_modules_json_nmodules_range 2 - 1 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(94):  foreach(_clang_modules_json_modules_idx RANGE 0 1 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(95):  string(JSON _clang_modules_json_module GET {
  "version": 1,
  "revision": 1,
  "modules": [
    {
      "logical-name": "std",
      "source-path": "../include/c++/15/bits/std.cc",
      "is-std-library": true
    },
    {
      "logical-name": "std.compat",
      "source-path": "../include/c++/15/bits/std.compat.cc",
      "is-std-library": true
    }
  ]
}
 modules 0 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(97):  string(JSON _clang_modules_json_module_source GET {
  "is-std-library" : true,
  "logical-name" : "std",
  "source-path" : "../include/c++/15/bits/std.cc"
} source-path )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(98):  string(JSON _clang_modules_json_module_is_stdlib GET {
  "is-std-library" : true,
  "logical-name" : "std",
  "source-path" : "../include/c++/15/bits/std.cc"
} is-std-library )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(99):  string(JSON _clang_modules_json_module_local_arguments ERROR_VARIABLE _clang_modules_json_module_local_arguments_error GET {
  "is-std-library" : true,
  "logical-name" : "std",
  "source-path" : "../include/c++/15/bits/std.cc"
} local-arguments )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(100):  string(JSON _clang_modules_json_module_nsystem_include_directories ERROR_VARIABLE _clang_modules_json_module_nsystem_include_directories_error LENGTH local-arguments-NOTFOUND system-include-directories )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(102):  if(_clang_modules_json_module_local_arguments_error )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(103):  set(_clang_modules_json_module_local_arguments  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(105):  if(_clang_modules_json_module_nsystem_include_directories_error )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(106):  set(_clang_modules_json_module_nsystem_include_directories 0 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(108):  if(NOT IS_ABSOLUTE ../include/c++/15/bits/std.cc )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(109):  string(PREPEND _clang_modules_json_module_source /usr/lib/gcc/x86_64-linux-gnu/15/ )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(111):  list(APPEND _clang_modules_module_paths /usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.cc )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(114):  if(_clang_modules_json_module_is_stdlib )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(115):  set(_clang_modules_is_stdlib 1 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(118):  if(_clang_modules_json_module_nsystem_include_directories )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(95):  string(JSON _clang_modules_json_module GET {
  "version": 1,
  "revision": 1,
  "modules": [
    {
      "logical-name": "std",
      "source-path": "../include/c++/15/bits/std.cc",
      "is-std-library": true
    },
    {
      "logical-name": "std.compat",
      "source-path": "../include/c++/15/bits/std.compat.cc",
      "is-std-library": true
    }
  ]
}
 modules 1 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(97):  string(JSON _clang_modules_json_module_source GET {
  "is-std-library" : true,
  "logical-name" : "std.compat",
  "source-path" : "../include/c++/15/bits/std.compat.cc"
} source-path )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(98):  string(JSON _clang_modules_json_module_is_stdlib GET {
  "is-std-library" : true,
  "logical-name" : "std.compat",
  "source-path" : "../include/c++/15/bits/std.compat.cc"
} is-std-library )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(99):  string(JSON _clang_modules_json_module_local_arguments ERROR_VARIABLE _clang_modules_json_module_local_arguments_error GET {
  "is-std-library" : true,
  "logical-name" : "std.compat",
  "source-path" : "../include/c++/15/bits/std.compat.cc"
} local-arguments )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(100):  string(JSON _clang_modules_json_module_nsystem_include_directories ERROR_VARIABLE _clang_modules_json_module_nsystem_include_directories_error LENGTH local-arguments-NOTFOUND system-include-directories )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(102):  if(_clang_modules_json_module_local_arguments_error )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(103):  set(_clang_modules_json_module_local_arguments  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(105):  if(_clang_modules_json_module_nsystem_include_directories_error )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(106):  set(_clang_modules_json_module_nsystem_include_directories 0 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(108):  if(NOT IS_ABSOLUTE ../include/c++/15/bits/std.compat.cc )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(109):  string(PREPEND _clang_modules_json_module_source /usr/lib/gcc/x86_64-linux-gnu/15/ )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(111):  list(APPEND _clang_modules_module_paths /usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.compat.cc )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(114):  if(_clang_modules_json_module_is_stdlib )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(115):  set(_clang_modules_is_stdlib 1 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(118):  if(_clang_modules_json_module_nsystem_include_directories )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(133):  set(_clang_modules_base_dirs_list  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(134):  set(_clang_modules_files  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(135):  foreach(_clang_modules_module_path IN LISTS _clang_modules_module_paths )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(136):  get_filename_component(_clang_module_dir /usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.cc DIRECTORY )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(138):  list(APPEND _clang_modules_base_dirs_list /usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(140):  string(APPEND _clang_modules_files  "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.cc" )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(136):  get_filename_component(_clang_module_dir /usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.compat.cc DIRECTORY )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(138):  list(APPEND _clang_modules_base_dirs_list /usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(140):  string(APPEND _clang_modules_files  "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.compat.cc" )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(143):  list(REMOVE_DUPLICATES _clang_modules_base_dirs_list )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(144):  set(_clang_modules_base_dirs  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(145):  foreach(_clang_modules_base_dir IN LISTS _clang_modules_base_dirs_list )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(146):  string(APPEND _clang_modules_base_dirs  "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits" )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(152):  if(_clang_modules_is_stdlib )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(153):  string(APPEND _clang_libcxx_target target_compile_options(__cmake_cxx26 PRIVATE -Wno-reserved-module-identifier)
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(158):  list(REMOVE_DUPLICATES _clang_modules_include_dirs_list )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(159):  set(_clang_modules_include_dirs  )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(160):  foreach(_clang_modules_include_dir IN LISTS _clang_modules_include_dirs_list )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(164):  string(APPEND _clang_libcxx_target target_include_directories(__cmake_cxx26 PRIVATE )
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(168):  string(APPEND _clang_libcxx_target target_sources(__cmake_cxx26
  PUBLIC
  FILE_SET std TYPE CXX_MODULES
    BASE_DIRS  "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits"
    FILES  "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.cc" "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.compat.cc")
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(176):  string(PREPEND _clang_libcxx_target if (NOT TARGET "__cmake_cxx26")
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(178):  string(APPEND _clang_libcxx_target endif ()
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(180):  string(APPEND _clang_libcxx_target add_library(__CMAKE::CXX26 ALIAS __cmake_cxx26)
 )
/usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Compiler/Clang-CXX-CXXImportStd.cmake(183):  set(target_definition if (NOT TARGET "__cmake_cxx26")
add_library(__cmake_cxx26 STATIC)
target_sources(__cmake_cxx26 INTERFACE "$<$<STREQUAL:$<TARGET_PROPERTY:TYPE>,STATIC_LIBRARY>:$<TARGET_OBJECTS:__cmake_cxx26>>")
set_property(TARGET __cmake_cxx26 PROPERTY EXCLUDE_FROM_ALL 1)
set_property(TARGET __cmake_cxx26 PROPERTY CXX_SCAN_FOR_MODULES 1)
set_property(TARGET __cmake_cxx26 PROPERTY CXX_MODULE_STD 0)
target_compile_features(__cmake_cxx26 PUBLIC cxx_std_26)
target_compile_options(__cmake_cxx26 PRIVATE -Wno-reserved-module-identifier)
target_include_directories(__cmake_cxx26 PRIVATE )
target_sources(__cmake_cxx26
  PUBLIC
  FILE_SET std TYPE CXX_MODULES
    BASE_DIRS  "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits"
    FILES  "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.cc" "/usr/lib/gcc/x86_64-linux-gnu/15/../include/c++/15/bits/std.compat.cc")
endif ()
add_library(__CMAKE::CXX26 ALIAS __cmake_cxx26)
 PARENT_SCOPE )
-- Detecting CXX compile features - done
-- Performing Test COMPILER_HAS_HIDDEN_VISIBILITY
CMake Error at /home/builder/workdir/build/CMakeFiles/4.0.3/CMakeCXXCompiler.cmake:111 (target_sources):
  Cannot find source file:

    /usr/lib/gcc/x86_64-linux-gnu/include/c++/15/bits/std.cc
Call Stack (most recent call first):
  /home/builder/workdir/build/CMakeFiles/CMakeScratch/TryCompile-R1iwlb/CMakeLists.txt:2 (project)


CMake Error at /home/builder/workdir/build/CMakeFiles/4.0.3/CMakeCXXCompiler.cmake:103 (add_library):
  No SOURCES given to target: __cmake_cxx23
Call Stack (most recent call first):
  /home/builder/workdir/build/CMakeFiles/CMakeScratch/TryCompile-R1iwlb/CMakeLists.txt:2 (project)


CMake Error at /home/builder/workdir/build/CMakeFiles/4.0.3/CMakeCXXCompiler.cmake:127 (add_library):
  No SOURCES given to target: __cmake_cxx26
Call Stack (most recent call first):
  /home/builder/workdir/build/CMakeFiles/CMakeScratch/TryCompile-R1iwlb/CMakeLists.txt:2 (project)


CMake Error at /usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Internal/CheckSourceCompiles.cmake:104 (try_compile):
  Failed to generate test project build system.
Call Stack (most recent call first):
  /usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/Internal/CheckCompilerFlag.cmake:18 (cmake_check_source_compiles)
  /usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/CheckCompilerFlag.cmake:56 (cmake_check_compiler_flag)
  /usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/GenerateExportHeader.cmake:244 (check_compiler_flag)
  /usr/local/lib/python3.13/dist-packages/cmake/data/share/cmake-4.0/Modules/GenerateExportHeader.cmake:425 (_test_compiler_hidden_visibility)
  CMakeLists.txt:55 (generate_export_header)


-- Configuring incomplete, errors occurred!
builder@3be174728abe:~/workdir$