Uploaded Test files

venv/Lib/site-packages/cmake/data/share/cmake-3.18/Modules/CheckIncludeFile.cmake

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+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+#[=======================================================================[.rst:
+CheckIncludeFile
+----------------
+
+Provides a macro to check if a header file can be included in ``C``.
+
+.. command:: CHECK_INCLUDE_FILE
+
+  .. code-block:: cmake
+
+    CHECK_INCLUDE_FILE(<include> <variable> [<flags>])
+
+  Check if the given ``<include>`` file may be included in a ``C``
+  source file and store the result in an internal cache entry named
+  ``<variable>``.  The optional third argument may be used to add
+  compilation flags to the check (or use ``CMAKE_REQUIRED_FLAGS`` below).
+
+The following variables may be set before calling this macro to modify
+the way the check is run:
+
+``CMAKE_REQUIRED_FLAGS``
+  string of compile command line flags.
+``CMAKE_REQUIRED_DEFINITIONS``
+  a :ref:`;-list <CMake Language Lists>` of macros to define (-DFOO=bar).
+``CMAKE_REQUIRED_INCLUDES``
+  a :ref:`;-list <CMake Language Lists>` of header search paths to pass to
+  the compiler.
+``CMAKE_REQUIRED_LINK_OPTIONS``
+  a :ref:`;-list <CMake Language Lists>` of options to add to the link command.
+``CMAKE_REQUIRED_LIBRARIES``
+  a :ref:`;-list <CMake Language Lists>` of libraries to add to the link
+  command. See policy :policy:`CMP0075`.
+``CMAKE_REQUIRED_QUIET``
+  execute quietly without messages.
+
+See the :module:`CheckIncludeFiles` module to check for multiple headers
+at once.  See the :module:`CheckIncludeFileCXX` module to check for headers
+using the ``CXX`` language.
+#]=======================================================================]
+
+include_guard(GLOBAL)
+
+macro(CHECK_INCLUDE_FILE INCLUDE VARIABLE)
+  if(NOT DEFINED "${VARIABLE}")
+    if(CMAKE_REQUIRED_INCLUDES)
+      set(CHECK_INCLUDE_FILE_C_INCLUDE_DIRS "-DINCLUDE_DIRECTORIES=${CMAKE_REQUIRED_INCLUDES}")
+    else()
+      set(CHECK_INCLUDE_FILE_C_INCLUDE_DIRS)
+    endif()
+    set(MACRO_CHECK_INCLUDE_FILE_FLAGS ${CMAKE_REQUIRED_FLAGS})
+    set(CHECK_INCLUDE_FILE_VAR ${INCLUDE})
+    configure_file(${CMAKE_ROOT}/Modules/CheckIncludeFile.c.in
+      ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckIncludeFile.c)
+    if(NOT CMAKE_REQUIRED_QUIET)
+      message(CHECK_START "Looking for ${INCLUDE}")
+    endif()
+    if(${ARGC} EQUAL 3)
+      set(CMAKE_C_FLAGS_SAVE ${CMAKE_C_FLAGS})
+      string(APPEND CMAKE_C_FLAGS " ${ARGV2}")
+    endif()
+
+    set(_CIF_LINK_OPTIONS)
+    if(CMAKE_REQUIRED_LINK_OPTIONS)
+      set(_CIF_LINK_OPTIONS LINK_OPTIONS ${CMAKE_REQUIRED_LINK_OPTIONS})
+    endif()
+
+    set(_CIF_LINK_LIBRARIES "")
+    if(CMAKE_REQUIRED_LIBRARIES)
+      cmake_policy(GET CMP0075 _CIF_CMP0075
+        PARENT_SCOPE # undocumented, do not use outside of CMake
+        )
+      if("x${_CIF_CMP0075}x" STREQUAL "xNEWx")
+        set(_CIF_LINK_LIBRARIES LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES})
+      elseif("x${_CIF_CMP0075}x" STREQUAL "xOLDx")
+      elseif(NOT _CIF_CMP0075_WARNED)
+        set(_CIF_CMP0075_WARNED 1)
+        message(AUTHOR_WARNING
+          "Policy CMP0075 is not set: Include file check macros honor CMAKE_REQUIRED_LIBRARIES.  "
+          "Run \"cmake --help-policy CMP0075\" for policy details.  "
+          "Use the cmake_policy command to set the policy and suppress this warning."
+          "\n"
+          "CMAKE_REQUIRED_LIBRARIES is set to:\n"
+          "  ${CMAKE_REQUIRED_LIBRARIES}\n"
+          "For compatibility with CMake 3.11 and below this check is ignoring it."
+          )
+      endif()
+      unset(_CIF_CMP0075)
+    endif()
+
+    try_compile(${VARIABLE}
+      ${CMAKE_BINARY_DIR}
+      ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/CheckIncludeFile.c
+      COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}
+      ${_CIF_LINK_OPTIONS}
+      ${_CIF_LINK_LIBRARIES}
+      CMAKE_FLAGS
+      -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_INCLUDE_FILE_FLAGS}
+      "${CHECK_INCLUDE_FILE_C_INCLUDE_DIRS}"
+      OUTPUT_VARIABLE OUTPUT)
+    unset(_CIF_LINK_OPTIONS)
+    unset(_CIF_LINK_LIBRARIES)
+
+    if(${ARGC} EQUAL 3)
+      set(CMAKE_C_FLAGS ${CMAKE_C_FLAGS_SAVE})
+    endif()
+
+    if(${VARIABLE})
+      if(NOT CMAKE_REQUIRED_QUIET)
+        message(CHECK_PASS "found")
+      endif()
+      set(${VARIABLE} 1 CACHE INTERNAL "Have include ${INCLUDE}")
+      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
+        "Determining if the include file ${INCLUDE} "
+        "exists passed with the following output:\n"
+        "${OUTPUT}\n\n")
+    else()
+      if(NOT CMAKE_REQUIRED_QUIET)
+        message(CHECK_FAIL "not found")
+      endif()
+      set(${VARIABLE} "" CACHE INTERNAL "Have include ${INCLUDE}")
+      file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
+        "Determining if the include file ${INCLUDE} "
+        "exists failed with the following output:\n"
+        "${OUTPUT}\n\n")
+    endif()
+  endif()
+endmacro()