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Help: Mention CMP0060 in CMAKE_<LANG>_IMPLICIT_LINK_DIRECTORIES

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Behavior described for this variable is actually dependent on the
`CMP0060` policy setting.  Update the documentation accordingly.
This commit is contained in:
Brad King
2018-04-20 09:17:33 -04:00
parent fe0082875a
commit d512825b64
1 changed files with 9 additions and 6 deletions
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15
Help/variable/CMAKE_LANG_IMPLICIT_LINK_DIRECTORIES.rst
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@@ -9,9 +9,12 @@ These paths are implicit linker search directories for the compiler's
language. CMake automatically detects these directories for each
language and reports the results in this variable.
When a library in one of these directories is given by full path to
:command:`target_link_libraries` CMake will generate the ``-l<name>`` form on
link lines to ensure the linker searches its implicit directories for the
library. Note that some toolchains read implicit directories from an
environment variable such as ``LIBRARY_PATH`` so keep its value consistent
when operating in a given build tree.
Some toolchains read implicit directories from an environment variable such as
``LIBRARY_PATH``. If using such an environment variable, keep its value
consistent when operating in a given build tree because CMake saves the value
detected when first creating a build tree.
If policy :policy:`CMP0060` is not set to ``NEW``, then when a library in one
of these directories is given by full path to :command:`target_link_libraries`
CMake will generate the ``-l<name>`` form on link lines for historical
purposes.