Warnings on Linux with gcc -O3:

/home/vstinner/python/master/Modules/_randommodule.c:546:17: warning: initialization discards ‘const’ qualifier from pointer target type [-Wdiscarded-qualifiers]
  546 |     {Py_tp_doc, random_doc},
      |                 ^~~~~~~~~~


/home/vstinner/python/master/Modules/_asynciomodule.c: In function ‘task_step_impl’:
/home/vstinner/python/master/Modules/_asynciomodule.c:2660:1: warning: label ‘set_exception’ defined but not used [-Wunused-label]
 2660 | set_exception:
      | ^~~~~~~~~~~~~


In function ‘getsockaddrarg’,
    inlined from ‘sock_bind’ at /home/vstinner/python/master/Modules/socketmodule.c:3113:10:
/home/vstinner/python/master/Modules/socketmodule.c:2331:9: warning: ‘memset’ offset [17, 88] from the object at ‘addrbuf’ is out of the bounds of referenced subobject ‘sa’ with type ‘struct sockaddr’ at offset 0 [-Warray-bounds]
 2331 |         memset(sa, 0, sizeof(*sa));
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~


For socketmodule: I already created bpo-38282.