Terminal flooded with cmake warnings when building with ninja+cmake 3.20 #8060
Description
Describe the bug
The warnings look like this:
CMake Warning (dev) at interpreter/llvm/src/cmake/modules/TableGen.cmake:70 (add_custom_command):
Policy CMP0116 is not set: Ninja generators transform DEPFILEs from
add_custom_command(). Run "cmake --help-policy CMP0116" for policy
details. Use the cmake_policy command to set the policy and suppress this
warning.
Call Stack (most recent call first):
interpreter/llvm/src/include/llvm/IR/CMakeLists.txt:2 (tablegen)
This warning is for project developers. Use -Wno-dev to suppress it.