contrib: srt: replace MSG_TRUNC with upstream fix

It can be removed once we update to the next release.

The previous patch potentially hides an error handling.

contrib/src/srt/0001-core-ifdef-MSG_TRUNC-nixes-fix.patch

-From b159a783ac11cb6c2c8ec035deaeb3d8a73e0e2f Mon Sep 17 00:00:00 2001
-From: Francois Cartegnie <fcvlcdev@free.fr>
-Date: Mon, 9 Nov 2020 20:54:14 +0100
-Subject: [PATCH] core: ifdef MSG_TRUNC nixes fix
-
----
- srtcore/channel.cpp | 2 ++
- 1 file changed, 2 insertions(+)
-
-diff --git a/srtcore/channel.cpp b/srtcore/channel.cpp
-index 3473e75..3af852e 100644
---- a/srtcore/channel.cpp
-+++ b/srtcore/channel.cpp
-@@ -801,6 +801,7 @@ EReadStatus CChannel::recvfrom(sockaddr_any& w_addr, CPacket& w_packet) const
-         goto Return_error;
-     }
- 
-+#ifndef _WIN32
-     // Fix for an issue with Linux Kernel found during tests at Tencent.
-     //
-     // There was a bug in older Linux Kernel which caused that when the internal
-@@ -825,6 +826,7 @@ EReadStatus CChannel::recvfrom(sockaddr_any& w_addr, CPacket& w_packet) const
-         status = RST_AGAIN;
-         goto Return_error;
-     }
-+#endif
- 
-     w_packet.setLength(recv_size - CPacket::HDR_SIZE);
- 
--- 
-2.26.2
-

contrib/src/srt/0001-core-remove-MSG_TRUNC-logging.patch

+From 82a65778b2445d3b310c7fa870cfb6410307d31b Mon Sep 17 00:00:00 2001
+From: Steve Lhomme <robux4@ycbcr.xyz>
+Date: Fri, 2 Sep 2022 09:12:03 +0200
+Subject: [PATCH] [core] remove MSG_TRUNC logging
+
+The code does not compile on platforms/SDKs where MSG_TRUNC doesn't exist
+(mingw-w64/windows).
+---
+ srtcore/channel.cpp | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/srtcore/channel.cpp b/srtcore/channel.cpp
+index 6d51487..30fd987 100644
+--- a/srtcore/channel.cpp
++++ b/srtcore/channel.cpp
+@@ -878,7 +878,7 @@ srt::EReadStatus srt::CChannel::recvfrom(sockaddr_any& w_addr, CPacket& w_packet
+     {
+         HLOGC(krlog.Debug,
+               log << CONID() << "NET ERROR: packet size=" << recv_size << " msg_flags=0x" << hex << msg_flags
+-                  << ", possibly MSG_TRUNC (0x" << hex << int(MSG_TRUNC) << ")");
++                  << ", possibly MSG_TRUNC)");
+         status = RST_AGAIN;
+         goto Return_error;
+     }
+-- 
+2.27.0.windows.1
+

contrib/src/srt/rules.mak

@@ -24,7 +24,7 @@ $(TARBALLS)/srt-$(SRT_VERSION).tar.gz:
 
 srt: srt-$(SRT_VERSION).tar.gz .sum-srt
 	$(UNPACK)
-	$(APPLY) $(SRC)/srt/0001-core-ifdef-MSG_TRUNC-nixes-fix.patch
+	$(APPLY) $(SRC)/srt/0001-core-remove-MSG_TRUNC-logging.patch
 	$(call pkg_static,"scripts/srt.pc.in")
 	mv srt-$(SRT_VERSION) $@ && touch $@