Christian Heimes 0d35a59ce3 gh-95174: Handle missing dup() and constants in WASI (GH-95229) ...

- check for ``dup()`` libc function
- handle missing ``F_DUPFD`` in ``dup2()`` replacement function
- add workaround for WASI libc bug in MSG_TRUNC
- ESHUTDOWN is missing, use EPIPE instead
- POLLPRI is missing, define as 0 (no-op)

2022-07-26 11:16:51 +02:00

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