[Bug pch/108732] Pre-compiled headers cannot be output to /dev/null

[justinpopo6 at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108732

Justin Chen <justinpopo6 at gmail dot com> changed:

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--- Comment #8 from Justin Chen <justinpopo6 at gmail dot com> ---
I ran into the exact issue. Took me a while to figure out the issue was "-o
/dev/null". The inconsistency also caught me off guard. I agree we need some
consistency here.