CMake Warning \(dev\) at CMP0050-WARN.cmake:3 \(add_custom_command\):
  Policy CMP0050 is not set: Disallow add_custom_command SOURCE signatures.
  Run "cmake --help-policy CMP0050" for policy details.  Use the cmake_policy
  command to set the policy and suppress this warning.

  The SOURCE signatures of add_custom_command are no longer supported.
Call Stack \(most recent call first\):
  CMakeLists.txt:3 \(include\)
This warning is for project developers.  Use -Wno-dev to suppress it.