pip install fails with gcc error using gcc-7.2.0 on macOS High Sierra

[jeizenga]

I'm running macOS High Sierra 10.13, and pip install psutil fails with this error:

/opt/local/bin/gcc -fno-strict-aliasing -fno-common -dynamic -arch x86_64 -arch i386 -g -Os -pipe -fno-common -fno-strict-aliasing -fwrapv -DENABLE_DTRACE -DMACOSX -DNDEBUG -Wall -Wstrict-prototypes -Wshorten-64-to-32 -DNDEBUG -g -fwrapv -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE -arch i386 -arch x86_64 -pipe -DPSUTIL_POSIX=1 -DPSUTIL_VERSION=540 -DPSUTIL_OSX=1 -I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c psutil/_psutil_common.c -o build/temp.macosx-10.13-intel-2.7/psutil/_psutil_common.o
    gcc: warning: x86_64 conflicts with i386 (arch flags ignored)
    gcc: error: unrecognized command line option '-Wshorten-64-to-32'
    error: command '/opt/local/bin/gcc' failed with exit status 1
    
    ----------------------------------------
Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/private/var/folders/88/29kfb0qd3b1c3c_mccnm56vc0000gn/T/pip-build-FZnO2r/psutil/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /var/folders/88/29kfb0qd3b1c3c_mccnm56vc0000gn/T/pip-a4GqPn-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /private/var/folders/88/29kfb0qd3b1c3c_mccnm56vc0000gn/T/pip-build-FZnO2r/psutil/

[giampaolo]

Don't have that OSX version sorry. Have you tried to google for unrecognized command line option '-Wshorten-64-to-32'? It seems you're not alone out there.

[jeizenga]

Yeah, unfortunately everything I found refers to versions of gcc that I'm not using :/

[wiggin15]

This works for me, both with Apple's XCode Command Line Tools's gcc (which supports '-Wshorten-64-to-32) and gcc-7.2 installed by brew (which doesn't).
Can you please paste the output of:
gcc --version and python -c "import sysconfig; print sysconfig.get_config_vars('CFLAGS').

The flags that are used for compilation are taken from sysconfig, and I think they have something to do with the way the Python binary was compiled. If the definitions from sysconfig mismatch your version of gcc, you may want to edit them.

[giampaolo]

@wiggin15 unrelated, but since you're on OSX... it would be great to implement sensors_temperatures() (#371 (comment)) and sensors_battery() on OSX. Is this something which would intrigue you? I can't do it because I virtualize OSX via VirtualBox and both temperatures and battery are not emulated.

[wiggin15]

Looks like the code attached in your comment works, so it's just a matter of adding to psutil. I'll see what I can do.

[giampaolo]

Cool! I kinda knew I could count on you for this. =)

[giampaolo]

Cloising out as outdated.