308aec3e56 build: disable external-signer for Windows (fanquake)
35537318a1 ci: remove --enable-external-signer from win64 job (fanquake)
Pull request description:
It's come to light that Boost ASIO (a Boost Process sub dep) has in some
instances, been quietly initialising our network stack on Windows (see
PR https://github.com/bitcoin/bitcoin/pull/28486 and discussion in https://github.com/bitcoin/bitcoin/issues/28940).
This has been shielding a bug in our own code, but the larger issue
is that Boost Process/ASIO is running code before main, and doing things
like setting up networking. This undermines our own assumptions about
how our binary works, happens before we run any sanity checks,
and before we call our own code to setup networking. Note that ASIO also
calls WSAStartup with version `2.0`, whereas we call with `2.2`.
It's also not clear why a feature like external signer would have a
dependency that would be doing anything network/socket related,
given it only exists to spawn a local process.
See also the discussion in https://github.com/bitcoin/bitcoin/issues/24907. Note that the maintaince of Boost Process in general,
has not really improved. For example, rather than fixing bugs like https://github.com/boostorg/process/issues/111,
i.e, https://github.com/boostorg/process/pull/317, the maintainer chooses to just wrap exception causing overflows
in try-catch blocks: 0c42a58eac. These changes get merged in large,
unreviewed PRs, i.e https://github.com/boostorg/process/pull/319.
This PR disables external-signer on Windows for now. If, in future, someone
changes how Boost Process works, or replaces it entirely with some
properly reviewed and maintained code, we could reenable this feature on
Windows.
ACKs for top commit:
hebasto:
re-ACK 308aec3e56.
TheCharlatan:
ACK 308aec3e56
Tree-SHA512: 7405f7fc9833eeaacd6836c4e5b1c1a7845a40c1fdd55c1060152f8d8189e4777464fde650e11eb1539556a75dddf49667105987078b1457493ee772945da66e
f0e829022a