[ARROW-6459] [C++] Remove "python" from conda_env_cpp.txt

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/22829
• Assignee: Unassigned
• Reporter: Wes McKinney
• Created: 05/Sep/19 04:24
• Updated: 11/Jan/23 07:47

Description

I'm not sure why "python" is in this dependency file – if it is used to maintain a toolchain external to a particular Python environment then it confuses CMake like

CMake Warning at cmake_modules/BuildUtils.cmake:529 (add_executable):
  Cannot generate a safe runtime search path for target arrow-python-test
  because there is a cycle in the constraint graph:

    dir 0 is [/home/wesm/code/arrow/cpp/build/debug]
    dir 1 is [/home/wesm/miniconda/envs/arrow-3.7/lib]
      dir 2 must precede it due to runtime library [libcrypto.so.1.1]
    dir 2 is [/home/wesm/cpp-toolchain/lib]
      dir 1 must precede it due to runtime library [libpython3.7m.so.1.0]

  Some of these libraries may not be found correctly.
Call Stack (most recent call first):
  src/arrow/CMakeLists.txt:52 (add_test_case)
  src/arrow/python/CMakeLists.txt:139 (add_arrow_test)

Issue Links

• links to: GitHub Pull Request #14072