CMP0088ΒΆ
New in version 3.14.
FindBISON runs bison in CMAKE_CURRENT_BINARY_DIR
when executing.
The module provides a BISON_TARGET macro which generates BISON output.
In CMake 3.13 and below the macro would generate a custom command that runs
bison in the source directory. CMake 3.14 and later prefer to run it
in the build directory and use CMAKE_CURRENT_BINARY_DIR as the
WORKING_DIRECTORY of its add_custom_command() invocation.
This ensures that any implicitly generated file is written to the build
tree rather than the source.
This policy provides compatibility for projects that have not been updated to expect the new behavior.
The OLD behavior for this policy is for BISON_TARGET to use
the current source directory for the WORKING_DIRECTORY and where
to generate implicit files. The NEW behavior of this policy is to
use the current binary directory for the WORKING_DIRECTORY and where
to generate implicit files.
This policy was introduced in CMake version 3.14. Use the
cmake_policy() command to set it to OLD or NEW explicitly.
Unlike most policies, CMake version 3.24.2 does not warn
when this policy is not set and simply uses OLD behavior.
Note
The OLD behavior of a policy is
deprecated by definition
and may be removed in a future version of CMake.