ttyd: compatibility with latest websockets

packages/ttyd/build.sh

@@ -2,7 +2,7 @@ TERMUX_PKG_HOMEPAGE=https://tsl0922.github.io/ttyd/
 TERMUX_PKG_DESCRIPTION="Command-line tool for sharing terminal over the web"
 TERMUX_PKG_LICENSE="MIT"
 TERMUX_PKG_VERSION=1.6.1
-TERMUX_PKG_REVISION=2
+TERMUX_PKG_REVISION=3
 TERMUX_PKG_SRCURL=https://github.com/tsl0922/ttyd/archive/$TERMUX_PKG_VERSION.tar.gz
 TERMUX_PKG_SHA256=d72dcca3dec00cda87b80a0a25ae4fee2f8b9098c1cdb558508dcb14fbb6fafc
 TERMUX_PKG_DEPENDS="json-c, libuv, libwebsockets, zlib"

packages/ttyd/websockets-41x-compat.patch

@@ -0,0 +1,13 @@
+diff -uNr ttyd-1.6.1/src/server.c ttyd-1.6.1.mod/src/server.c
+--- ttyd-1.6.1/src/server.c	2020-06-26 08:07:38.000000000 +0300
++++ ttyd-1.6.1.mod/src/server.c	2020-10-01 12:48:37.004505774 +0300
+@@ -449,9 +449,6 @@
+           LWS_LIBRARY_VERSION);
+   info.server_string = server_hdr;
+ #endif
+-#if LWS_LIBRARY_VERSION_NUMBER >= 2001000
+-  info.ws_ping_pong_interval = 5;
+-#endif
+ 
+   if (strlen(iface) > 0) {
+     info.iface = iface;