mirror of
https://github.com/Detanup01/gbe_fork.git
synced 2024-11-28 13:44:02 +08:00
36 lines
1.5 KiB
ReStructuredText
36 lines
1.5 KiB
ReStructuredText
|
CMP0023
|
||
|
|
-------
|
||
|
|
|
||
|
|
Plain and keyword :command:`target_link_libraries` signatures cannot be mixed.
|
||
|
|
|
||
|
|
CMake 2.8.12 introduced the :command:`target_link_libraries` signature using
|
||
|
|
the ``PUBLIC``, ``PRIVATE``, and ``INTERFACE`` keywords to generalize the
|
||
|
|
``LINK_PUBLIC`` and ``LINK_PRIVATE`` keywords introduced in CMake 2.8.7.
|
||
|
|
Use of signatures with any of these keywords sets the link interface of a
|
||
|
|
target explicitly, even if empty. This produces confusing behavior
|
||
|
|
when used in combination with the historical behavior of the plain
|
||
|
|
:command:`target_link_libraries` signature. For example, consider the code:
|
||
|
|
|
||
|
|
::
|
||
|
|
|
||
|
|
target_link_libraries(mylib A)
|
||
|
|
target_link_libraries(mylib PRIVATE B)
|
||
|
|
|
||
|
|
After the first line the link interface has not been set explicitly so
|
||
|
|
CMake would use the link implementation, A, as the link interface.
|
||
|
|
However, the second line sets the link interface to empty. In order
|
||
|
|
to avoid this subtle behavior CMake now prefers to disallow mixing the
|
||
|
|
plain and keyword signatures of :command:`target_link_libraries` for a single
|
||
|
|
target.
|
||
|
|
|
||
|
|
The ``OLD`` behavior for this policy is to allow keyword and plain
|
||
|
|
:command:`target_link_libraries` signatures to be mixed. The ``NEW`` behavior for
|
||
|
|
this policy is to not to allow mixing of the keyword and plain
|
||
|
|
signatures.
|
||
|
|
|
||
|
|
This policy was introduced in CMake version 2.8.12. CMake version
|
||
|
|
|release| warns when the policy is not set and uses ``OLD`` behavior. Use
|
||
|
|
the :command:`cmake_policy` command to set it to ``OLD`` or ``NEW`` explicitly.
|
||
|
|
|
||
|
|
.. include:: DEPRECATED.txt
|