Help:Check*: include CMAKE_REQUIRED_* vars to dedupe

CMAKE_REQUIRED_FLAGS now notes that space-delimited string, not
;-list is required, which could be surprising compared to similar
options that do use ;-list

1 files changed, 19 insertions, 39 deletions

diff --git a/Modules/CheckOBJCXXSourceRuns.cmake b/Modules/CheckOBJCXXSourceRuns.cmake
index 05a5e4cf59..b2831b6ed3 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)