Policy CMP0054 is not set: Only interpret if（） arguments as variables or keywords when unquoted

Refer to prompt cause solution

reference resources

How to use variables and avoid CMP0054 policy violations?CMP0054

Prompt reason

Note: You only get the CMP0054 warning if the context of your variable was actually evaluated again (so it’s a hint your CMake code will not work in those places).

solve

cmake_policy(SET CMP0054 NEW)