cmake/Help/policy/CMP0049.rst

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CMP0049
-------
Do not expand variables in target source entries.
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CMake 2.8.12 and lower performed an extra layer of variable expansion
when evaluating source file names::
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set(a_source foo.c)
add_executable(foo \${a_source})
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.. note: no cmake highlighting since this syntax is deprecated
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This was undocumented behavior.
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The ``OLD`` behavior for this policy is to expand such variables when processing
the target sources. The ``NEW`` behavior for this policy is to issue an error
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if such variables need to be expanded.
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.. |INTRODUCED_IN_CMAKE_VERSION| replace:: 3.0
.. |WARNS_OR_DOES_NOT_WARN| replace:: warns
.. include:: STANDARD_ADVICE.txt
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.. include:: DEPRECATED.txt