CMP0066ΒΆ
Added in version 3.7.
Honor per-config flags in try_compile() source-file signature.
The source file signature of the try_compile() command uses the value
of the 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
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 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 CMAKE_<LANG>_FLAGS_DEBUG.
This policy was introduced in CMake version 3.7.
It may be set by cmake_policy() or cmake_minimum_required().
If it is not set, CMake does not warn by default, and uses OLD behavior.
See documentation of the
CMAKE_POLICY_WARNING_CMP0066
variable to control the warning.
Note
The OLD behavior of a policy is
deprecated by definition
and may be removed in a future version of CMake.