applying patch from Tim

AUTHORS

@@ -62,6 +62,7 @@ Tal Moaz <tmoaz@cisco.com>
 Dirk Brinkmeier
 Jose Bollo <jobol@nonadev.net>
 Jonathan McDougall <jonathanmcdougall@gmail.com>
+Tim Ruhsen <tim.ruehsen@gmx.de>
 
 Documentation contributions also came from:
 Marco Maggi <marco.maggi-ipsu@poste.it>

ChangeLog

@@ -1,3 +1,6 @@
+Mon 29 Apr 2019 01:26:39 AM BRT
+	Fixed signed/unsigned comparison in example http_chunked_compression.c. -SC/TR
+
 Mon 15 Apr 2019 05:33:52 PM CEST
 	Add MHD_USE_POST_HANDSHAKE_AUTH_SUPPORT and
 	MHD_USE_INSECURE_TLS_EARLY_DATA flags. -CG

src/examples/http_chunked_compression.c

@@ -92,7 +92,7 @@ read_cb (void *cls, uint64_t pos, char *mem, size_t size)
   if (NULL == src)
     return MHD_CONTENT_READER_END_WITH_ERROR;
   size = fread (src, 1, size, holder->file);
-  if (size < 0)
+  if ((ssize_t) size < 0)
     {
       size = MHD_CONTENT_READER_END_WITH_ERROR;
       goto done;