CMake Deprecation Warning at CMakeLists.txt:4 (cmake_minimum_required):
  Compatibility with CMake < 3.10 will be removed from a future version of
  CMake.

  Update the VERSION argument  value.  Or, use the ... syntax
  to tell CMake that the project requires at least  but has been updated
  to work with policies introduced by  or earlier.


CMake Warning (dev) at cmake/04-targets.cmake:40 (add_custom_command):
  Exactly one of PRE_BUILD, PRE_LINK, or POST_BUILD must be given.  Assuming
  POST_BUILD to preserve backward compatibility.

  Policy CMP0175 is not set: add_custom_command() rejects invalid arguments.
  Run "cmake --help-policy CMP0175" for policy details.  Use the cmake_policy
  command to set the policy and suppress this warning.
Call Stack (most recent call first):
  CMakeLists.txt:42 (include)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at cmake/04-targets.cmake:48 (add_custom_command):
  Exactly one of PRE_BUILD, PRE_LINK, or POST_BUILD must be given.  Assuming
  POST_BUILD to preserve backward compatibility.

  Policy CMP0175 is not set: add_custom_command() rejects invalid arguments.
  Run "cmake --help-policy CMP0175" for policy details.  Use the cmake_policy
  command to set the policy and suppress this warning.
Call Stack (most recent call first):
  CMakeLists.txt:42 (include)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at cmake/04-targets.cmake:57 (add_custom_command):
  Exactly one of PRE_BUILD, PRE_LINK, or POST_BUILD must be given.  Assuming
  POST_BUILD to preserve backward compatibility.

  Policy CMP0175 is not set: add_custom_command() rejects invalid arguments.
  Run "cmake --help-policy CMP0175" for policy details.  Use the cmake_policy
  command to set the policy and suppress this warning.
Call Stack (most recent call first):
  CMakeLists.txt:42 (include)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at cmake/04-targets.cmake:65 (add_custom_command):
  Exactly one of PRE_BUILD, PRE_LINK, or POST_BUILD must be given.  Assuming
  POST_BUILD to preserve backward compatibility.

  Policy CMP0175 is not set: add_custom_command() rejects invalid arguments.
  Run "cmake --help-policy CMP0175" for policy details.  Use the cmake_policy
  command to set the policy and suppress this warning.
Call Stack (most recent call first):
  CMakeLists.txt:42 (include)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Deprecation Warning at lib/xpp/CMakeLists.txt:1 (cmake_minimum_required):
  Compatibility with CMake < 3.10 will be removed from a future version of
  CMake.

  Update the VERSION argument  value.  Or, use the ... syntax
  to tell CMake that the project requires at least  but has been updated
  to work with policies introduced by  or earlier.


CMake Deprecation Warning at lib/i3ipcpp/CMakeLists.txt:3 (cmake_minimum_required):
  Compatibility with CMake < 3.10 will be removed from a future version of
  CMake.

  Update the VERSION argument  value.  Or, use the ... syntax
  to tell CMake that the project requires at least  but has been updated
  to work with policies introduced by  or earlier.


CMake Warning:
  Manually-specified variables were not used by the project:

    CMAKE_LD_FLAGS