.

no-threading.patch

+--- lib_pypy/_sysconfigdata.py.kirr	2020-04-07 05:59:04.000000000 +0300
++++ lib_pypy/_sysconfigdata.py	2020-07-15 20:34:43.000000000 +0300
+@@ -39,15 +39,21 @@
+         build_time_vars["CXX"] = "g++ -pthread"
+ 
+ if sys.platform[:6] == "darwin":
+-    import platform
+-    if platform.machine() == 'i386':
+-        if platform.architecture()[0] == '32bit':
++    # don't import platform - it imports subprocess -> threading.
++    # gevent-based projects need to be first to import threading and
++    # monkey-patch as early as possible in the lifetime of their process.
++    # https://foss.heptapod.net/pypy/pypy/-/issues/3269
++    _, _, _, _, machine = os.uname()
++    import struct
++    wordsize = struct.calcsize('P') # void* : 4 on 32bit, 8 on 64bit
++    if machine == 'i386':
++        if wordsize == 4:
+             arch = 'i386'
+         else:
+             arch = 'x86_64'
+     else:
+         # just a guess
+-        arch = platform.machine()
++        arch = machine
+     build_time_vars['LDSHARED'] += ' -undefined dynamic_lookup'
+     build_time_vars['CC'] += ' -arch %s' % (arch,)
+     if "CXX" in build_time_vars: