From f23daa8262b01f5dfe41f3bf11155816a674b689 Mon Sep 17 00:00:00 2001
From: Alden Torres <aldenml@gmail.com>
Date: Sat, 19 Jan 2019 16:47:48 -0500
Subject: [PATCH] marked final error category classes, avoid -Wnon-virtual-dtor

---
 src/bdecode.cpp       | 2 +-
 src/error_code.cpp    | 4 ++--
 src/gzip.cpp          | 2 +-
 src/i2p_stream.cpp    | 2 +-
 src/natpmp.cpp        | 2 +-
 src/socks5_stream.cpp | 2 +-
 src/upnp.cpp          | 2 +-
 src/utf8.cpp          | 2 +-
 8 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/src/bdecode.cpp b/src/bdecode.cpp
index d728b5421..78541dc1c 100644
--- a/src/bdecode.cpp
+++ b/src/bdecode.cpp
@@ -157,7 +157,7 @@ namespace {
 	}
 
 
-	struct bdecode_error_category : boost::system::error_category
+	struct bdecode_error_category final : boost::system::error_category
 	{
 		const char* name() const BOOST_SYSTEM_NOEXCEPT override;
 		std::string message(int ev) const override;
diff --git a/src/error_code.cpp b/src/error_code.cpp
index 33ffe29e5..057207da5 100644
--- a/src/error_code.cpp
+++ b/src/error_code.cpp
@@ -38,7 +38,7 @@ POSSIBILITY OF SUCH DAMAGE.
 
 namespace libtorrent {
 
-	struct libtorrent_error_category : boost::system::error_category
+	struct libtorrent_error_category final : boost::system::error_category
 	{
 		const char* name() const BOOST_SYSTEM_NOEXCEPT override;
 		std::string message(int ev) const override;
@@ -282,7 +282,7 @@ namespace libtorrent {
 		return libtorrent_category;
 	}
 
-	struct TORRENT_EXPORT http_error_category : boost::system::error_category
+	struct http_error_category final : boost::system::error_category
 	{
 		const char* name() const BOOST_SYSTEM_NOEXCEPT override
 		{ return "http"; }
diff --git a/src/gzip.cpp b/src/gzip.cpp
index 5fe0b8306..015079553 100644
--- a/src/gzip.cpp
+++ b/src/gzip.cpp
@@ -55,7 +55,7 @@ namespace {
 
 namespace libtorrent {
 
-	struct gzip_error_category : boost::system::error_category
+	struct gzip_error_category final : boost::system::error_category
 	{
 		const char* name() const BOOST_SYSTEM_NOEXCEPT override;
 		std::string message(int ev) const override;
diff --git a/src/i2p_stream.cpp b/src/i2p_stream.cpp
index 349e3a505..0bbe7a2ce 100644
--- a/src/i2p_stream.cpp
+++ b/src/i2p_stream.cpp
@@ -51,7 +51,7 @@ using namespace std::placeholders;
 
 namespace libtorrent {
 
-	struct i2p_error_category : boost::system::error_category
+	struct i2p_error_category final : boost::system::error_category
 	{
 		const char* name() const BOOST_SYSTEM_NOEXCEPT override
 		{ return "i2p error"; }
diff --git a/src/natpmp.cpp b/src/natpmp.cpp
index baf16e8a1..1226bceba 100644
--- a/src/natpmp.cpp
+++ b/src/natpmp.cpp
@@ -62,7 +62,7 @@ POSSIBILITY OF SUCH DAMAGE.
 
 namespace libtorrent {
 
-struct TORRENT_EXPORT pcp_error_category : boost::system::error_category
+struct pcp_error_category final : boost::system::error_category
 {
 	const char* name() const BOOST_SYSTEM_NOEXCEPT override
 	{ return "pcp error"; }
diff --git a/src/socks5_stream.cpp b/src/socks5_stream.cpp
index a13dd4bf5..fb850e465 100644
--- a/src/socks5_stream.cpp
+++ b/src/socks5_stream.cpp
@@ -43,7 +43,7 @@ namespace libtorrent {
 		{ return {e, socks_category()}; }
 	}
 
-	struct socks_error_category : boost::system::error_category
+	struct socks_error_category final : boost::system::error_category
 	{
 		const char* name() const BOOST_SYSTEM_NOEXCEPT override
 		{ return "socks"; }
diff --git a/src/upnp.cpp b/src/upnp.cpp
index b37a65f91..21b236ccf 100644
--- a/src/upnp.cpp
+++ b/src/upnp.cpp
@@ -1173,7 +1173,7 @@ namespace {
 
 }
 
-struct upnp_error_category : boost::system::error_category
+struct upnp_error_category final : boost::system::error_category
 {
 	const char* name() const BOOST_SYSTEM_NOEXCEPT override
 	{
diff --git a/src/utf8.cpp b/src/utf8.cpp
index f7938742e..9f9680d28 100644
--- a/src/utf8.cpp
+++ b/src/utf8.cpp
@@ -178,7 +178,7 @@ namespace {
 			}
 		};
 
-		struct utf8_error_category : boost::system::error_category
+		struct utf8_error_category final : boost::system::error_category
 		{
 			const char* name() const BOOST_SYSTEM_NOEXCEPT override
 			{