[PATCH] gnunetchat: skip_msg_handing: a label can only be part of a statement and a declaration is not a statement

Hello,

seen in gcc7 (vs. 13):

[   22s] FAILED: libgnunetchat.so.p/src_gnunet_chat_handle.c.o
[   22s] cc -Ilibgnunetchat.so.p -I. -I.. -Isrc -I../src -I../include/gnunet -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g -fPIC -MD -MQ libgnunetchat.so.p/src_gnunet_chat_handle.c.o -MF libgnunetchat.so.p/src_gnunet_chat_handle.c.o.d -o libgnunetchat.so.p/src_gnunet_chat_handle.c.o -c ../src/gnunet_chat_handle.c
[   22s] In file included from ../src/gnunet_chat_handle.c:27:0:
[   22s] ../src/gnunet_chat_handle_intern.c: In function ‘on_handle_message_callback’:
[   22s] ../src/gnunet_chat_handle_intern.c:921:3: error: a label can only be part of a statement and a declaration is not a statement
[   22s]    const struct GNUNET_MESSENGER_Contact *sender = GNUNET_MESSENGER_get_sender(
[   22s]    ^~~~~

Fix:

Index: libgnunetchat-0.3.0/src/gnunet_chat_handle_intern.c
===================================================================
--- libgnunetchat-0.3.0.orig/src/gnunet_chat_handle_intern.c
+++ libgnunetchat-0.3.0/src/gnunet_chat_handle_intern.c
@@ -918,6 +918,7 @@ on_handle_message_callback(void *cls)
    }

  skip_msg_handing:
+  ;
    const struct GNUNET_MESSENGER_Contact *sender = GNUNET_MESSENGER_get_sender(
      context->room, &(message->hash));