[ARROW-5609] [C++] Set CMP0068 CMake policy to avoid macOS warnings

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.14.0, 0.14.1
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/22049
• Assignee: Uwe Korn
• Reporter: Wes McKinney
• Created: 14/Jun/19 13:04
• Updated: 11/Jan/23 07:41
• Resolved: 30/Jun/19 19:04

Description

These warnings are appearing in the build on macOS

CMake Warning (dev):
  Policy CMP0068 is not set: RPATH settings on macOS do not affect
  install_name.  Run "cmake --help-policy CMP0068" for policy details.  Use
  the cmake_policy command to set the policy and suppress this warning.

  For compatibility with older versions of CMake, the install_name fields for
  the following targets are still affected by RPATH settings:

   arrow_dataset_shared
   arrow_python_shared
   arrow_shared
   arrow_testing_shared
   parquet_shared
   plasma_shared

This warning is for project developers.  Use -Wno-dev to suppress it.

Issue Links

• links to: GitHub Pull Request #4752