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author | Robert Maynard <robert.maynard@kitware.com> | 2018-06-21 18:53:11 (GMT) |
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committer | Brad King <brad.king@kitware.com> | 2018-07-09 11:48:28 (GMT) |
commit | 2a5f5c0e316d415e1b8207348b34761d34f191ae (patch) | |
tree | a17a979c357a3148424b71fc0bcac898b1ec7e4a /Help/command/option.rst | |
parent | 12e6f83319d089b3295b4211d0d4810575e8f7d5 (diff) | |
download | CMake-2a5f5c0e316d415e1b8207348b34761d34f191ae.zip CMake-2a5f5c0e316d415e1b8207348b34761d34f191ae.tar.gz CMake-2a5f5c0e316d415e1b8207348b34761d34f191ae.tar.bz2 |
option: respect existing normal variable
Add policy CMP0077 to change this behavior in a compatible way.
Diffstat (limited to 'Help/command/option.rst')
-rw-r--r-- | Help/command/option.rst | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Help/command/option.rst b/Help/command/option.rst index 91cd0a7..4fabb87 100644 --- a/Help/command/option.rst +++ b/Help/command/option.rst @@ -9,7 +9,9 @@ Provides an option that the user can optionally select. [initial value]) Provide an option for the user to select as ``ON`` or ``OFF``. If no -initial value is provided, ``OFF`` is used. +initial value is provided, ``OFF`` is used. If the option is already +set as a normal variable then the command does nothing +(see policy :policy:`CMP0077`). If you have options that depend on the values of other options, see the module help for :module:`CMakeDependentOption`. |