Nick Desaulniers e566313a1f [libc][signal] clean up usage of sighandler_t (#125745) ...

`man 3 signal`'s declaration has a face _only a mother could love_.

sighandler_t and __sighandler_t are not defined in the C standard, or POSIX.

They are helpful typedefs provided by glibc and the Linux kernel UAPI headers
respectively since working with function pointers' syntax can be painful. But
we should not rely on them; in C++ we have `auto*` and `using` statements.

Remove the proxy header, and only include a typedef for sighandler_t when
targeting Linux, for compatibility with glibc.

Fixes: #125598

2025-02-07 10:43:56 -08:00

1.6 KiB

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