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commit 129137d5182967dbfcfec66bad843df2a992a78f
Author: fanquake <fanquake@gmail.com>
Date: Mon Jan 3 20:13:33 2022 +0800
problem: kevent udata is now void* on NetBSD Current (10)
solution: check for the intptr_t variant in configure.
diff --git a/configure.ac b/configure.ac
index 1a571291..402f8b86 100644
--- a/configure.ac
+++ b/configure.ac
@@ -308,6 +308,27 @@ case "${host_os}" in
if test "x$libzmq_netbsd_has_atomic" = "xno"; then
AC_DEFINE(ZMQ_FORCE_MUTEXES, 1, [Force to use mutexes])
fi
+ # NetBSD Current (to become 10) has changed the type of udata in it's
+ # kevent struct from intptr_t to void * to align with darwin and other
+ # BSDs, see upstream commit:
+ # https://github.com/NetBSD/src/commit/e5ead823eb916b56589d2c6c560dbcfe4a2d0afc
+ AC_MSG_CHECKING([whether kevent udata type is intptr_t])
+ AC_LANG_PUSH([C++])
+ AC_LINK_IFELSE([AC_LANG_PROGRAM(
+ [[#include <sys/types.h>
+ #include <sys/event.h>
+ #include <sys/time.h>]],
+ [[struct kevent ev;
+ intptr_t udata;
+ EV_SET(&ev, 0, 0, EV_ADD, 0, 0, udata);
+ return 0;]])],
+ [libzmq_netbsd_kevent_udata_intptr_t=yes],
+ [libzmq_netbsd_kevent_udata_intptr_t=no])
+ AC_LANG_POP([C++])
+ AC_MSG_RESULT([$libzmq_netbsd_kevent_udata_intptr_t])
+ if test "x$libzmq_netbsd_kevent_udata_intptr_t" = "xyes"; then
+ AC_DEFINE(ZMQ_NETBSD_KEVENT_UDATA_INTPTR_T, 1, [kevent udata type is intptr_t])
+ fi
;;
*openbsd*|*bitrig*)
# Define on OpenBSD to enable all library features
diff --git a/src/kqueue.cpp b/src/kqueue.cpp
index 53d82ac4..a6a7a7f2 100644
--- a/src/kqueue.cpp
+++ b/src/kqueue.cpp
@@ -46,9 +46,9 @@
#include "i_poll_events.hpp"
#include "likely.hpp"
-// NetBSD defines (struct kevent).udata as intptr_t, everyone else
-// as void *.
-#if defined ZMQ_HAVE_NETBSD
+// NetBSD up to version 9 defines (struct kevent).udata as intptr_t,
+// everyone else as void *.
+#if defined ZMQ_HAVE_NETBSD && defined(ZMQ_NETBSD_KEVENT_UDATA_INTPTR_T)
#define kevent_udata_t intptr_t
#else
#define kevent_udata_t void *
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