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author | Craig Scott <craig.scott@crascit.com> | 2018-07-20 22:58:14 (GMT) |
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committer | Kitware Robot <kwrobot@kitware.com> | 2018-07-20 22:58:43 (GMT) |
commit | e3664debd2d950de1b0d0a0c673ada05ae9a700d (patch) | |
tree | af4be391aa3f6809978b69b680b08f5836ce2b62 /Help/policy | |
parent | 01c04e429717fb7a6a157ce1baeb2114724ec055 (diff) | |
parent | 492ade276b9a54ad61ba5eed4eea77897fdb74c1 (diff) | |
download | CMake-e3664debd2d950de1b0d0a0c673ada05ae9a700d.zip CMake-e3664debd2d950de1b0d0a0c673ada05ae9a700d.tar.gz CMake-e3664debd2d950de1b0d0a0c673ada05ae9a700d.tar.bz2 |
Merge topic 'doc-find_package-root'
492ade276b Help: Add explicit <PackageName>_ROOT variable documentation
Acked-by: Kitware Robot <kwrobot@kitware.com>
Merge-request: !2225
Diffstat (limited to 'Help/policy')
-rw-r--r-- | Help/policy/CMP0074.rst | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/Help/policy/CMP0074.rst b/Help/policy/CMP0074.rst index ffac4a7..896936b 100644 --- a/Help/policy/CMP0074.rst +++ b/Help/policy/CMP0074.rst @@ -1,18 +1,19 @@ CMP0074 ------- -:command:`find_package` uses ``PackageName_ROOT`` variables. +:command:`find_package` uses ``<PackageName>_ROOT`` variables. -In CMake 3.12 and above the ``find_package(PackageName)`` command now searches -a prefix specified by a ``PackageName_ROOT`` CMake or environment variable. +In CMake 3.12 and above the :command:`find_package(<PackageName>)` command now +searches prefixes specified by the :variable:`<PackageName>_ROOT` CMake +variable and the :envvar:`<PackageName>_ROOT` environment variable. Package roots are maintained as a stack so nested calls to all ``find_*`` commands inside find modules also search the roots as prefixes. This policy provides compatibility with projects that have not been updated to avoid using -``PackageName_ROOT`` variables for other purposes. +``<PackageName>_ROOT`` variables for other purposes. -The ``OLD`` behavior for this policy is to ignore ``PackageName_ROOT`` -variables. The ``NEW`` behavior for this policy is to use ``PackageName_ROOT`` -variables. +The ``OLD`` behavior for this policy is to ignore ``<PackageName>_ROOT`` +variables. The ``NEW`` behavior for this policy is to use +``<PackageName>_ROOT`` variables. This policy was introduced in CMake version 3.12. CMake version |release| warns when the policy is not set and uses ``OLD`` behavior. |