[Bug c/44511] Misdetects missing return with non-void return type, but only if the function is static

[eggert at cs dot ucla.edu]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44511

eggert at cs dot ucla.edu changed:

           What    |Removed                     |Added
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                 CC|                            |eggert at cs dot ucla.edu

--- Comment #4 from eggert at cs dot ucla.edu ---
We recently ran into this bug in Gnulib, and this affects downstream GNU test
programs with threads that never return, because POSIX thread functions return
'void *'. For example, with GNU grep 3.6, './configure --enable-gcc-warnings;
make' fails to build; see:

https://bugs.gnu.org/44535

I worked around the problem by adding '#pragma GCC diagnostic ignored
"-Wreturn-type"' to the Gnulib test module in question. It would be nice if
such a workaround weren't needed.