CMP0066

.. versionadded:: 3.7

Honor per-config flags in :command:try_compile source-file signature.

The source file signature of the :command:try_compile command uses the value of the :variable:CMAKE_<LANG>_FLAGS variable in the test project so that the test compilation works as it would in the main project. However, CMake 3.6 and below do not also honor config-specific compiler flags such as those in the :variable:CMAKE_<LANG>_FLAGS_DEBUG variable. CMake 3.7 and above prefer to honor config-specific compiler flags too. This policy provides compatibility for projects that do not expect config-specific compiler flags to be used.

The OLD behavior of this policy is to ignore config-specific flag variables like :variable:CMAKE_<LANG>_FLAGS_DEBUG and only use CMake's built-in defaults for the current compiler and platform.

The NEW behavior of this policy is to honor config-specific flag variables like :variable:CMAKE_<LANG>_FLAGS_DEBUG.

.. |INTRODUCED_IN_CMAKE_VERSION| replace:: 3.7 .. |WARNS_OR_DOES_NOT_WARN| replace:: does not warn by default .. include:: include/STANDARD_ADVICE.rst

See documentation of the :variable:CMAKE_POLICY_WARNING_CMP0066 <CMAKE_POLICY_WARNING_CMP<NNNN>> variable to control the warning.

.. include:: include/DEPRECATED.rst