diff options
Diffstat (limited to 'Modules/CheckOBJCXXSourceRuns.cmake')
-rw-r--r-- | Modules/CheckOBJCXXSourceRuns.cmake | 58 |
1 files changed, 19 insertions, 39 deletions
diff --git a/Modules/CheckOBJCXXSourceRuns.cmake b/Modules/CheckOBJCXXSourceRuns.cmake index 05a5e4c..b2831b6 100644 --- a/Modules/CheckOBJCXXSourceRuns.cmake +++ b/Modules/CheckOBJCXXSourceRuns.cmake @@ -23,47 +23,27 @@ subsequently be run. be set to 1, otherwise it will be set to an value that evaluates to boolean false (e.g. an empty string or an error message). - The underlying check is performed by the :command:`try_run` command. The - compile and link commands can be influenced by setting any of the following - variables prior to calling ``check_objcxx_source_runs()``: - - ``CMAKE_REQUIRED_FLAGS`` - Additional flags to pass to the compiler. Note that the contents of - :variable:`CMAKE_OBJCXX_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_run()``, 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_run` 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_run` 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 + 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_objcxx_source_runs()`` + +.. 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) |