Please add: gcc (MacPorts gcc11 11.2.0_1) 11.2.0

[dbl001]

Describe the bug Please add: gcc (MacPorts gcc11 11.2.0_1) 11.2.0 to the list of c_compilers in the file: mujoco_py/builder.py

To Reproduce In project decision-transformer, in ~/decision-transformer/gym: $ conda env create -f conda_env.yml

Expected behavior A clear and concise description of what you expected to happen.

Error Messages RuntimeError: Could not find GCC executable.

HINT: On OS X, install GCC with brew install gcc. or port install gcc.

Desktop (please complete the following information):

• OS: [e.g. macOS 10.13.6]
• OS X Monterey 12.1 Beta
• Python Version [e.g. 3.6.6]
• Mujoco Version [e.g. 1.50]
• % ls -l ~/.mujoco total 8 -rw-r--r--@ 1 davidlaxer staff 768 Nov 14 06:29 mjkey.txt drwxr-xr-x@ 7 davidlaxer staff 224 Oct 7 11:48 mujoco200 drwxr-xr-x@ 7 davidlaxer staff 224 Oct 7 11:48 mujoco210
• mujoco-py version [e.g. 1.50.1.59]

Environment

• output of: echo $LD_LIBRARY_PATH
• output of: echo $HOME
• output of: echo $USER

  **Additional context**
  c_compilers = [
              '/usr/local/bin/gcc-9',
              '/usr/local/bin/gcc-8',
              '/usr/local/bin/gcc-7',
              '/usr/local/bin/gcc-6',
              '/opt/local/bin/gcc-mp-9',
              '/opt/local/bin/gcc-mp-8',
              '/opt/local/bin/gcc-mp-7',
              '/opt/local/bin/gcc-mp-6',
          ]
          available_c_compiler = None
          for c_compiler in c_compilers:
              if distutils.spawn.find_executable(c_compiler) is not None:
                  available_c_compiler = c_compiler
                  break
          if available_c_compiler is None:
              raise RuntimeError(
                  'Could not find GCC executable.\n\n'
                  'HINT: On OS X, install GCC with '
                  '`brew install gcc`. or '
                  '`port install gcc`.')
          os.environ['CC'] = available_c_compiler

[wookayin]

I think this is duplicate of #605. I agree with you that gcc detection in mujoco-py installation script should be improved.

In the meantime, a workaround for you would be:

export CC=/usr/local/bin/gcc-11                    # Assuming you are on a Intel Mac
pip install mujoco-py

FYI, for M1 mac with arm64 homebrew gcc export CC=/opt/homebrew/bin/gcc-11 will do the job, but the installed mujoco-py will still not work due to lack of arm64 support. See #605 for details.

[wookayin]

@dbl001 May I ask if you are using Intel mac or M1 mac? What is your path to homebrew-installed gcc? i.e., which gcc

[dbl001]

I am on the Intel iMac 2020. I run MacPorts.

$ which gcc /opt/local/bin/gcc

gcc 11.2.0

On Nov 18, 2021, at 2:43 PM, Jongwook Choi @.***> wrote:

@dbl001 https://github.com/dbl001 May I ask if you are using Intel mac or M1 mac? What is your path to homebrew-installed gcc? i.e., which gcc

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