syslog-ng: backport upstream fix for older macOS

sysutils/syslog-ng/Portfile

@@ -32,7 +32,8 @@ depends_lib port:gettext-runtime \
  port:pcre
 
 patchfiles clock_gettime_compat.patch \
- MAP_ANONYMOUS.patch
+ MAP_ANONYMOUS.patch \
+ 80e97634cb75878ee94b23ebf35cebc92481fbfc.patch
 
 startupitem.create yes
 startupitem.executable ${prefix}/sbin/syslog-ng

sysutils/syslog-ng/files/80e97634cb75878ee94b23ebf35cebc92481fbfc.patch

@@ -0,0 +1,66 @@
+From 80e97634cb75878ee94b23ebf35cebc92481fbfc Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?L=C3=A1szl=C3=B3=20V=C3=A1rady?= <[email protected]>
+Date: Wed, 30 Aug 2023 19:32:17 +0200
+Subject: [PATCH] transport-udp: support platforms where PKTINFO is not
+ available
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+For example, older macOS versions.
+
+Signed-off-by: László Várady <[email protected]>
+---
+ lib/transport/transport-udp-socket.c | 8 ++++++--
+ 1 file changed, 6 insertions(+), 2 deletions(-)
+
+diff --git a/lib/transport/transport-udp-socket.c b/lib/transport/transport-udp-socket.c
+index 821f20b1ee..2bd9fe2350 100644
+--- lib/transport/transport-udp-socket.c
++++ lib/transport/transport-udp-socket.c
+@@ -63,6 +63,7 @@ _extract_dest_ip4_addr_from_cmsg(struct cmsghdr *cmsg, GSockAddr *bind_addr)
+ GSockAddr *
+ _extract_dest_ip4_addr_from_cmsg(struct cmsghdr *cmsg, GSockAddr *bind_addr)
+ {
++#ifdef IP_PKTINFO
+ if (cmsg->cmsg_level == IPPROTO_IP && cmsg->cmsg_type == IP_PKTINFO)
+ {
+ struct sockaddr_in sin;
+@@ -76,6 +77,7 @@ _extract_dest_ip4_addr_from_cmsg(struct cmsghdr *cmsg, GSockAddr *bind_addr)
+ sin.sin_addr = inpkt.ipi_addr;
+ return g_sockaddr_new((struct sockaddr *) &sin, sizeof(sin));
+ }
++#endif
+ return NULL;
+ }
+ #endif
+@@ -85,6 +87,7 @@ _extract_dest_ip4_addr_from_cmsg(struct cmsghdr *cmsg, GSockAddr *bind_addr)
+ GSockAddr *
+ _extract_dest_ip6_addr_from_cmsg(struct cmsghdr *cmsg, GSockAddr *bind_addr)
+ {
++#ifdef IPV6_PKTINFO
+ if (cmsg->cmsg_level == IPPROTO_IPV6 && cmsg->cmsg_type == IPV6_PKTINFO)
+ {
+ struct sockaddr_in6 sin6;
+@@ -98,6 +101,7 @@ _extract_dest_ip6_addr_from_cmsg(struct cmsghdr *cmsg, GSockAddr *bind_addr)
+ sin6.sin6_addr = in6pkt.ipi6_addr;
+ return g_sockaddr_new((struct sockaddr *) &sin6, sizeof(sin6));
+ }
++#endif
+ return NULL;
+ }
+
+@@ -142,11 +146,11 @@ _setup_fd(LogTransportUDP *self, gint fd)
+ {
+ #if defined(__FreeBSD__) || defined(__OpenBSD__)
+ setsockopt(fd, IPPROTO_IP, IP_RECVDSTADDR, &on, sizeof(on));
+-#else
++#elif defined(IP_PKTINFO)
+ setsockopt(fd, IPPROTO_IP, IP_PKTINFO, &on, sizeof(on));
+ #endif
+ }
+-#if SYSLOG_NG_ENABLE_IPV6
++#if SYSLOG_NG_ENABLE_IPV6 && defined(IPV6_RECVPKTINFO)
+ else if (self->bind_addr->sa.sa_family == AF_INET6)
+ setsockopt(fd, IPPROTO_IPV6, IPV6_RECVPKTINFO, &on, sizeof(on));
+ #endif