shadowsocks-libev: fix compilation with GCC10

Signed-off-by: Rosen Penev <rosenp@gmail.com>

net/shadowsocks-libev/Makefile

@@ -14,7 +14,7 @@ include $(TOPDIR)/rules.mk
 #
 PKG_NAME:=shadowsocks-libev
 PKG_VERSION:=3.3.4
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://github.com/shadowsocks/shadowsocks-libev/releases/download/v$(PKG_VERSION)

net/shadowsocks-libev/patches/010-gcc10.patch

@@ -0,0 +1,20 @@
+--- a/src/http.h
++++ b/src/http.h
+@@ -29,6 +29,6 @@
+ #include <stdio.h>
+ #include "protocol.h"
+ 
+-const protocol_t *const http_protocol;
++extern const protocol_t *const http_protocol;
+ 
+ #endif
+--- a/src/tls.h
++++ b/src/tls.h
+@@ -28,6 +28,6 @@
+ 
+ #include "protocol.h"
+ 
+-const protocol_t *const tls_protocol;
++extern const protocol_t *const tls_protocol;
+ 
+ #endif