diff options
Diffstat (limited to 'Modules/CheckCXXSourceCompiles.cmake')
-rw-r--r-- | Modules/CheckCXXSourceCompiles.cmake | 62 |
1 files changed, 19 insertions, 43 deletions
diff --git a/Modules/CheckCXXSourceCompiles.cmake b/Modules/CheckCXXSourceCompiles.cmake index 502bfa7..4b33aa8 100644 --- a/Modules/CheckCXXSourceCompiles.cmake +++ b/Modules/CheckCXXSourceCompiles.cmake @@ -22,51 +22,27 @@ Check if given C++ source compiles and links into an executable. 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`` - .. versionadded:: 3.14 - - 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`` - .. versionadded:: 3.1 - - 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 + 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. + The compile and link commands can be influenced by setting any of the + following variables prior to calling ``check_cxx_source_compiles()``: + +.. include:: /module/CMAKE_REQUIRED_FLAGS.txt + +.. include:: /module/CMAKE_REQUIRED_DEFINITIONS.txt + +.. include:: /module/CMAKE_REQUIRED_INCLUDES.txt + +.. include:: /module/CMAKE_REQUIRED_LINK_OPTIONS.txt + +.. include:: /module/CMAKE_REQUIRED_LIBRARIES.txt + +.. include:: /module/CMAKE_REQUIRED_QUIET.txt + #]=======================================================================] include_guard(GLOBAL) |