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Diffstat (limited to 'share/cmake-3.18/Modules/CheckCXXSourceCompiles.cmake')
| -rw-r--r-- | share/cmake-3.18/Modules/CheckCXXSourceCompiles.cmake | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/share/cmake-3.18/Modules/CheckCXXSourceCompiles.cmake b/share/cmake-3.18/Modules/CheckCXXSourceCompiles.cmake deleted file mode 100644 index c693d32..0000000 --- a/share/cmake-3.18/Modules/CheckCXXSourceCompiles.cmake +++ /dev/null @@ -1,146 +0,0 @@ -# Distributed under the OSI-approved BSD 3-Clause License. See accompanying -# file Copyright.txt or https://cmake.org/licensing for details. - -#[=======================================================================[.rst: -CheckCXXSourceCompiles ----------------------- - -Check if given C++ source compiles and links into an executable. - -.. command:: check_cxx_source_compiles - - .. code-block:: cmake - - check_cxx_source_compiles(<code> <resultVar> - [FAIL_REGEX <regex1> [<regex2>...]]) - - Check that the source supplied in ``<code>`` can be compiled as a C++ source - file and linked as an executable (so it must contain at least a ``main()`` - function). The result will be stored in the internal cache variable specified - by ``<resultVar>``, with a boolean true value for success and boolean false - for failure. If ``FAIL_REGEX`` is provided, then failure is determined by - checking if anything in the output matches any of the specified regular - expressions. - - The underlying check is performed by the :command:`try_compile` command. The - compile and link commands can be influenced by setting any of the following - variables prior to calling ``check_cxx_source_compiles()``: - - ``CMAKE_REQUIRED_FLAGS`` - Additional flags to pass to the compiler. Note that the contents of - :variable:`CMAKE_CXX_FLAGS <CMAKE_<LANG>_FLAGS>` and its associated - configuration-specific variable are automatically added to the compiler - command before the contents of ``CMAKE_REQUIRED_FLAGS``. - - ``CMAKE_REQUIRED_DEFINITIONS`` - A :ref:`;-list <CMake Language Lists>` of compiler definitions of the form - ``-DFOO`` or ``-DFOO=bar``. A definition for the name specified by - ``<resultVar>`` will also be added automatically. - - ``CMAKE_REQUIRED_INCLUDES`` - A :ref:`;-list <CMake Language Lists>` of header search paths to pass to - the compiler. These will be the only header search paths used by - ``try_compile()``, i.e. the contents of the :prop_dir:`INCLUDE_DIRECTORIES` - directory property will be ignored. - - ``CMAKE_REQUIRED_LINK_OPTIONS`` - A :ref:`;-list <CMake Language Lists>` of options to add to the link - command (see :command:`try_compile` for further details). - - ``CMAKE_REQUIRED_LIBRARIES`` - A :ref:`;-list <CMake Language Lists>` of libraries to add to the link - command. These can be the name of system libraries or they can be - :ref:`Imported Targets <Imported Targets>` (see :command:`try_compile` for - further details). - - ``CMAKE_REQUIRED_QUIET`` - If this variable evaluates to a boolean true value, all status messages - associated with the check will be suppressed. - - The check is only performed once, with the result cached in the variable - named by ``<resultVar>``. Every subsequent CMake run will re-use this cached - value rather than performing the check again, even if the ``<code>`` changes. - In order to force the check to be re-evaluated, the variable named by - ``<resultVar>`` must be manually removed from the cache. - -#]=======================================================================] - -include_guard(GLOBAL) - -macro(CHECK_CXX_SOURCE_COMPILES SOURCE VAR) - if(NOT DEFINED "${VAR}") - set(_FAIL_REGEX) - set(_key) - foreach(arg ${ARGN}) - if("${arg}" MATCHES "^(FAIL_REGEX)$") - set(_key "${arg}") - elseif(_key) - list(APPEND _${_key} "${arg}") - else() - message(FATAL_ERROR "Unknown argument:\n ${arg}\n") - endif() - endforeach() - - set(MACRO_CHECK_FUNCTION_DEFINITIONS - "-D${VAR} ${CMAKE_REQUIRED_FLAGS}") - if(CMAKE_REQUIRED_LINK_OPTIONS) - set(CHECK_CXX_SOURCE_COMPILES_ADD_LINK_OPTIONS - LINK_OPTIONS ${CMAKE_REQUIRED_LINK_OPTIONS}) - else() - set(CHECK_CXX_SOURCE_COMPILES_ADD_LINK_OPTIONS) - endif() - if(CMAKE_REQUIRED_LIBRARIES) - set(CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES - LINK_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES}) - else() - set(CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES) - endif() - if(CMAKE_REQUIRED_INCLUDES) - set(CHECK_CXX_SOURCE_COMPILES_ADD_INCLUDES - "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}") - else() - set(CHECK_CXX_SOURCE_COMPILES_ADD_INCLUDES) - endif() - file(WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.cxx" - "${SOURCE}\n") - - if(NOT CMAKE_REQUIRED_QUIET) - message(CHECK_START "Performing Test ${VAR}") - endif() - try_compile(${VAR} - ${CMAKE_BINARY_DIR} - ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.cxx - COMPILE_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} - ${CHECK_CXX_SOURCE_COMPILES_ADD_LINK_OPTIONS} - ${CHECK_CXX_SOURCE_COMPILES_ADD_LIBRARIES} - CMAKE_FLAGS -DCOMPILE_DEFINITIONS:STRING=${MACRO_CHECK_FUNCTION_DEFINITIONS} - "${CHECK_CXX_SOURCE_COMPILES_ADD_INCLUDES}" - OUTPUT_VARIABLE OUTPUT) - - foreach(_regex ${_FAIL_REGEX}) - if("${OUTPUT}" MATCHES "${_regex}") - set(${VAR} 0) - endif() - endforeach() - - if(${VAR}) - set(${VAR} 1 CACHE INTERNAL "Test ${VAR}") - if(NOT CMAKE_REQUIRED_QUIET) - message(CHECK_PASS "Success") - endif() - file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log - "Performing C++ SOURCE FILE Test ${VAR} succeeded with the following output:\n" - "${OUTPUT}\n" - "Source file was:\n${SOURCE}\n") - else() - if(NOT CMAKE_REQUIRED_QUIET) - message(CHECK_FAIL "Failed") - endif() - set(${VAR} "" CACHE INTERNAL "Test ${VAR}") - file(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log - "Performing C++ SOURCE FILE Test ${VAR} failed with the following output:\n" - "${OUTPUT}\n" - "Source file was:\n${SOURCE}\n") - endif() - endif() -endmacro() |