[pypy-issue] Issue #2648: socket.MSG_ERRQUEUE flag value is not exported (pypy/pypy)

[chrysn]

New issue 2648: socket.MSG_ERRQUEUE flag value is not exported
https://bitbucket.org/pypy/pypy/issues/2648/socketmsg_errqueue-flag-value-is-not

chrysn:

The socket.MSG_ERRQUEUE flag, which can be used to get ICMP errors from a socket (thanks to the solution to #2527) and has been present on Linux builds of cpython since at least 3.5, is missing from pypy (tried on nightly pypy3 builds), please consider adding it.

The attached script can be used to test the issue.