Add support for iOS

Can we get support on iOS?

pip install psutil on Python 3.7 on iOS Pyto results in…

Querying PyPI ... 
Downloading package ...

Extracting archive file ...
Running setup file ...
Traceback (most recent call last):
  File "Pyto.app/installer.py", line 6, in <module>
    main(sys.argv[1:])
  File "Pyto.app/site-packages/pip.py", line 1489, in main
    repository.install(pkg_name, ver_spec, dist=dist)
  File "Pyto.app/site-packages/pip.py", line 1079, in install
    self._install(pkg_name, pkg_info, archive_filename, dependency_dist=dist)
  File "Pyto.app/site-packages/pip.py", line 842, in _install
    files_installed, dependencies = self.installer.run(pkg_name, archive_filename)
  File "Pyto.app/site-packages/pip.py", line 525, in run
    return self._run_setup_file(setup_filename)
  File "Pyto.app/site-packages/pip.py", line 614, in _run_setup_file
    exec(codeobj, namespace, namespace)
  File "/private/var/mobile/Containers/Data/Application/88E244A6-EF98-4A77-937A-8D0C39208B36/tmp/41d21074d4e64594933bdfdc412410c2/psutil-5.6.2/setup.py", line 257, in <module>
SystemExit: platform ios is not supported

@ColdGrub1384

[DaOfficialRolex]

I was wondering if there was any interest in reviving support for iOS. Since I want to add psutil and bpytop to iOS and macOS. Currently when I try to build psutil for iOS. I get this error. building 'psutil._psutil_osx' extension creating build/temp.macosx-11.0-x86_64-3.9 creating build/temp.macosx-11.0-x86_64-3.9/psutil creating build/temp.macosx-11.0-x86_64-3.9/psutil/arch creating build/temp.macosx-11.0-x86_64-3.9/psutil/arch/osx cc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -O2 -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk -mmacosx-version-min=11.0 -isystem /Users/haydenseay/GitHub/Procursus/build_base/darwin-amd64/1700//opt/procursus/include -isystem /Users/haydenseay/GitHub/Procursus/build_base/darwin-amd64/1700//opt/procursus/include -F/Users/haydenseay/GitHub/Procursus/build_base/darwin-amd64/1700//opt/procursus/System/Library/Frameworks -F/Users/haydenseay/GitHub/Procursus/build_base/darwin-amd64/1700//opt/procursus/Library/Frameworks -O2 -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX11.1.sdk -mmacosx-version-min=11.0 -isystem /Users/haydenseay/GitHub/Procursus/build_base/darwin-amd64/1700//opt/procursus/include -isystem /Users/haydenseay/GitHub/Procursus/build_base/darwin-amd64/1700//opt/procursus/include -F/Users/haydenseay/GitHub/Procursus/build_base/darwin-amd64/1700//opt/procursus/System/Library/Frameworks -F/Users/haydenseay/GitHub/Procursus/build_base/darwin-amd64/1700//opt/procursus/Library/Frameworks -O2 -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS14.4.sdk -miphoneos-version-min=14.0 -isystem /Users/rolex/Procursus/build_base/iphoneos-arm64/1700/usr/include -isystem /Users/rolex/Procursus/build_base/iphoneos-arm64/1700/usr/local/include -F/Users/rolex/Procursus/build_base/iphoneos-arm64/1700/System/Library/Frameworks -F/Users/rolex/Procursus/build_base/iphoneos-arm64/1700/Library/Frameworks -O2 -arch arm64 -miphoneos-version-min=14.0 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS14.4.sdk -isystem /Users/rolex/Procursus/build_base/iphoneos-arm64/1700/usr/include -isystem /Users/rolex/Procursus/build_base/iphoneos-arm64/1700/usr/local/include -Wno-error-implicit-function-declaration -DPSUTIL_POSIX=1 -DPSUTIL_SIZEOF_PID_T=4 -DPSUTIL_VERSION=580 -DPSUTIL_OSX=1 -I/opt/procursus/include/python3.9 -c psutil/_psutil_common.c -o build/temp.macosx-11.0-x86_64-3.9/psutil/_psutil_common.o clang: error: invalid argument '-mmacosx-version-min=11.0' not allowed with '-miphoneos-version-min=14.0' clang: warning: using sysroot for 'iPhoneOS' but targeting 'MacOSX' [-Wincompatible-sysroot] clang: error: invalid argument '-mmacosx-version-min=11.0' not allowed with '-miphoneos-version-min=14.0' clang: warning: using sysroot for 'iPhoneOS' but targeting 'MacOSX' [-Wincompatible-sysroot] error: command '/usr/bin/cc' failed with exit code 1 gmake[1]: *** [python-psutil.mk:18: python-psutil] Error 1 gmake: *** [Makefile:749: rebuild-python-psutil-package] Error 2

I was able to successfully build psutil for macOS on both amd64 and arm64. I was hoping since arm64 for macOS and iOS are pretty similar. That clang was able to compile it correctly however it seems that assumption was wrong. I am guessing this means support for iOS needs to be added by the developers of psutil. If this is not case please let me know. I have very little knowledge on python. So I am sorry ahead of time if this is not the case.

Here is the little progress I made for psutil.

[cclauss]

@giampaolo Were you able to get Python working on your iPhone?