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Fix compat with NetBSD >= 10

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kevent::udata was switched from intptr_t to void*.

Handle both cases with the GCC extension typeof().

(cherry picked from commit 72e6eff0251bffec72e0b8b2cedf72f173c8b9e9)
This commit is contained in:
Kamil Rytarowski 2019-10-04 01:26:47 +02:00 committed by Azat Khuzhin
parent 50b9be003c
commit 5febb4e191
1 changed files with 4 additions and 1 deletions
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5
kqueue.c
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@ -51,7 +51,10 @@
/* Some platforms apparently define the udata field of struct kevent as
* intptr_t, whereas others define it as void*. There doesn't seem to be an
* easy way to tell them apart via autoconf, so we need to use OS macros. */
#if defined(EVENT__HAVE_INTTYPES_H) && !defined(__OpenBSD__) && !defined(__FreeBSD__) && !defined(__darwin__) && !defined(__APPLE__) && !defined(__CloudABI__)
#if defined(__NetBSD__)
#define PTR_TO_UDATA(x) ((typeof(((struct kevent *)0)->udata))(x))
#define INT_TO_UDATA(x) ((typeof(((struct kevent *)0)->udata))(intptr_t)(x))
#elif defined(EVENT__HAVE_INTTYPES_H) && !defined(__OpenBSD__) && !defined(__FreeBSD__) && !defined(__darwin__) && !defined(__APPLE__) && !defined(__CloudABI__)
#define PTR_TO_UDATA(x) ((intptr_t)(x))
#define INT_TO_UDATA(x) ((intptr_t)(x))
#else