# CMP0031

The `load_command()` command should not be called.

This command was added in August 2002 to allow projects to add arbitrary commands implemented in C or C++. However, it does not work when the toolchain in use does not match the ABI of the CMake process. It has been mostly superseded by the `macro()` and `function()` commands.

CMake >= 3.0 prefer that this command never be called. The OLD behavior for this policy is to allow the command to be called. The NEW behavior for this policy is to issue a FATAL_ERROR when the command is called.

This policy was introduced in CMake version 3.0. CMake version 3.13.0-rc2 warns when the policy is not set and uses OLD behavior. Use the cmake_policy command to set it to OLD or NEW explicitly.

Note

The `OLD` behavior of a policy is `deprecated by definition` and may be removed in a future version of CMake.