graviton gcc flags break pip install

[liquidcarbon]

I'm running into trouble with C-dependent python packages, specifically psutil on Amazon Linux 2 x2gd.large

It seems like it was meaning to run gcc -march=armv8.2-a+fp16+rcpc+dotprod+crypto _some_target_, but instead an extra space sneaked in and the whole .2-a+fp16+rcpc etc. part fell off. Anyone knows how to get around this?

  Command ['/home/ec2-user/.cache/pypoetry/virtualenvs/env-FCAoHQDC-py3.9/bin/pip', 'install', '--no-deps', 'file:///home/ec2-user/.cache/pypoetry/artifacts/b1/56/ea/8f76ac8e3267dcd0b251a107803fa457585315936bb70ef39c1775c7d1/psutil-5.9.0.tar.gz'] errored with the following return code 1, and output:
  Processing /home/ec2-user/.cache/pypoetry/artifacts/b1/56/ea/8f76ac8e3267dcd0b251a107803fa457585315936bb70ef39c1775c7d1/psutil-5.9.0.tar.gz
    Preparing metadata (setup.py): started
    Preparing metadata (setup.py): finished with status 'done'
  Building wheels for collected packages: psutil
    Building wheel for psutil (setup.py): started
    Building wheel for psutil (setup.py): finished with status 'error'
    error: subprocess-exited-with-error

    × python setup.py bdist_wheel did not run successfully.
    │ exit code: 1
    ╰─> [10 lines of output]
        running bdist_wheel
        running build
        running build_py
        running build_ext
        building 'psutil._psutil_linux' extension
        gcc: error: .2-a+fp16+rcpc+dotprod+crypto: No such file or directory
        gcc: error: .2-a+fp16+rcpc+dotprod+crypto: No such file or directory
        gcc: error: unrecognized command line option ‘-n1’; did you mean ‘-n’?
        gcc: error: unrecognized command line option ‘-n1’; did you mean ‘-n’?
        error: command '/usr/bin/gcc' failed with exit code 1
        [end of output]

[AGSaidi]

I tried setting CFLAGS manually and installing psutil on AL2 and it seems to work. Node that GCC7 (the default) on AL2 doesn't recognize rcpc

$ sudo yum install "@Development tools" python3-pip python3-devel
$ python3 -m pip install --user --upgrade pip
$ export CFLAGS="-march=armv8.2-a+fp16+crypto"
$ pip install    --force-reinstall psutil
Defaulting to user installation because normal site-packages is not writeable
Collecting psutil
  Using cached psutil-5.9.0.tar.gz (478 kB)
  Preparing metadata (setup.py) ... done
Using legacy 'setup.py install' for psutil, since package 'wheel' is not installed.
Installing collected packages: psutil
  Attempting uninstall: psutil
    Found existing installation: psutil 5.9.0
    Uninstalling psutil-5.9.0:
      Successfully uninstalled psutil-5.9.0
  Running setup.py install for psutil ... done
Successfully installed psutil-5.9.0

[tbbharaj]

Was able to install psutil on AL2:

$ sudo yum install "@Development tools" python3-devel
$ python3 -m pip install psutil --no-cache-dir
Defaulting to user installation because normal site-packages is not writeable
Collecting psutil
  Downloading psutil-5.9.0.tar.gz (478 kB)
     |████████████████████████████████| 478 kB 26.2 MB/s 
Using legacy 'setup.py install' for psutil, since package 'wheel' is not installed.
Installing collected packages: psutil
    Running setup.py install for psutil ... done
Successfully installed psutil-5.9.0

Also doing make install on psutil repo was successful

[sebpop]

@liquidcarbon were you able to get psutil installed with pip on Graviton AL2?
If you still see the error, please post detailed steps on how to reproduce the issue.
Thanks!

[liquidcarbon]

Thanks everyone for replies. I reverted to x86 for now but if we need to move to Graviton I feel like there's enough pointers here. Feel free to close.