summaryrefslogtreecommitdiffstats
path: root/Help/variable
diff options
context:
space:
mode:
authorBrad King <brad.king@kitware.com>2021-11-23 14:53:23 (GMT)
committerKitware Robot <kwrobot@kitware.com>2021-11-23 14:53:43 (GMT)
commiteaef62ec3b63697c45cbea05ff1d89964b439912 (patch)
treefe410152f2c1ebf6241c92c0d630fead29424f1e /Help/variable
parente18bed1bc1ef95e3ea5971ddb00a774c6c2c5575 (diff)
parent69b70968bd1a90eaf41c55b61604874cfebfd345 (diff)
downloadCMake-eaef62ec3b63697c45cbea05ff1d89964b439912.zip
CMake-eaef62ec3b63697c45cbea05ff1d89964b439912.tar.gz
CMake-eaef62ec3b63697c45cbea05ff1d89964b439912.tar.bz2
Merge topic 'doc-policy-default'
69b70968bd Help: Suggest CMAKE_POLICY_DEFAULT_CMP0126 in CMP0126 docs 5b1c24255f Help: Suggest CMAKE_POLICY_DEFAULT_CMP0077 in CMP0077 docs c44636a89b Help: Document more use cases for CMAKE_POLICY_DEFAULT_CMPNNNN Acked-by: Kitware Robot <kwrobot@kitware.com> Merge-request: !6756
Diffstat (limited to 'Help/variable')
-rw-r--r--Help/variable/CMAKE_POLICY_DEFAULT_CMPNNNN.rst19
1 files changed, 13 insertions, 6 deletions
diff --git a/Help/variable/CMAKE_POLICY_DEFAULT_CMPNNNN.rst b/Help/variable/CMAKE_POLICY_DEFAULT_CMPNNNN.rst
index 43582be..d643fb8 100644
--- a/Help/variable/CMAKE_POLICY_DEFAULT_CMPNNNN.rst
+++ b/Help/variable/CMAKE_POLICY_DEFAULT_CMPNNNN.rst
@@ -9,9 +9,16 @@ the given version unset. Set ``CMAKE_POLICY_DEFAULT_CMP<NNNN>`` to ``OLD``
or ``NEW`` to specify the default for policy ``CMP<NNNN>``, where ``<NNNN>``
is the policy number.
-This variable should not be set by a project in CMake code; use
-:command:`cmake_policy(SET)` instead. Users running CMake may set this
-variable in the cache (e.g. ``-DCMAKE_POLICY_DEFAULT_CMP<NNNN>=<OLD|NEW>``)
-to set a policy not otherwise set by the project. Set to ``OLD`` to quiet a
-policy warning while using old behavior or to ``NEW`` to try building the
-project with new behavior.
+This variable should not be set by a project in CMake code as a way to
+set its own policies; use :command:`cmake_policy(SET)` instead. This
+variable is meant to externally set policies for which a project has
+not itself been updated:
+
+* Users running CMake may set this variable in the cache
+ (e.g. ``-DCMAKE_POLICY_DEFAULT_CMP<NNNN>=<OLD|NEW>``). Set it to ``OLD``
+ to quiet a policy warning while using old behavior or to ``NEW`` to
+ try building the project with new behavior.
+
+* Projects may set this variable before a call to :command:`add_subdirectory`
+ that adds a third-party project in order to set its policies without
+ modifying third-party code.