CMake/Help/policy/CMP0026.rst
2019-03-27 16:01:20 +01:00

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CMP0026
-------
Disallow use of the LOCATION property for build targets.
CMake 2.8.12 and lower allowed reading the :prop_tgt:`LOCATION` target
property (and configuration-specific variants) to
determine the eventual location of build targets. This relies on the
assumption that all necessary information is available at
configure-time to determine the final location and filename of the
target. However, this property is not fully determined until later at
generate-time. At generate time, the ``$<TARGET_FILE>`` generator
expression can be used to determine the eventual :prop_tgt:`LOCATION` of a target
output.
Code which reads the :prop_tgt:`LOCATION` target property can be ported to
use the ``$<TARGET_FILE>`` generator expression together with the
:command:`file(GENERATE)` subcommand to generate a file containing
the target location.
The ``OLD`` behavior for this policy is to allow reading the :prop_tgt:`LOCATION`
properties from build-targets. The ``NEW`` behavior for this policy is to
not to allow reading the :prop_tgt:`LOCATION` properties from build-targets.
This policy was introduced in CMake version 3.0. 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