CMP0051ΒΆ
Warning
The OLD behavior of this policy was removed
in CMake version 4.0.
This policy must be set to NEW by a call to
cmake_minimum_required() or cmake_policy().
Added in version 3.1.
List TARGET_OBJECTS in SOURCES target property.
CMake 3.0 and lower did not include the TARGET_OBJECTS
generator expression when
returning the SOURCES target property.
Configure-time CMake code is not able to handle generator expressions. If
using the SOURCES target property at configure time, it may be
necessary to first remove generator expressions using the
string(GENEX_STRIP) command. Generate-time CMake code such as
file(GENERATE) can handle the content without stripping.
The OLD behavior for this policy is to omit TARGET_OBJECTS
expressions from the SOURCES target property. The NEW
behavior for this policy is to include TARGET_OBJECTS expressions
in the output.
This policy was introduced in CMake version 3.1.
Prior to removal in CMake version 4.0, it could be
set by cmake_policy() or cmake_minimum_required().
If it was not set, CMake warned, and used OLD behavior.