Tim Northover b89bcefa62 Reapply: Add an error message to the default SIGPIPE handler ...

UNIX03 conformance requires utilities to flush stdout before exiting and raise
an error if writing fails. Flushing already happens on a call to exit
and thus automatically on a return from main. Write failure is then
detected by LLVM's default SIGPIPE handler. The handler already exits with
a non-zero code, but conformance additionally requires an error message.

First reapply attempt I hadn't noticed the test had changed, hopefully this
goes better.

2022-06-09 20:13:45 +01:00

22 KiB

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