1 files changed, 4 insertions, 0 deletions

diff --git a/src/examples/dual_stack_example.c b/src/examples/dual_stack_example.c
index 6b3cef83..31b25438 100644
--- a/src/examples/dual_stack_example.c
+++ b/src/examples/dual_stack_example.c
@@ -39,6 +39,10 @@ ahc_echo (void *cls,
   const char *me = cls;
   struct MHD_Response *response;
   int ret;
+  (void)url;               /* Unused. Silent compiler warning. */
+  (void)version;           /* Unused. Silent compiler warning. */
+  (void)upload_data;       /* Unused. Silent compiler warning. */
+  (void)upload_data_size;  /* Unused. Silent compiler warning. */
 
   if (0 != strcmp (method, "GET"))
     return MHD_NO;              /* unexpected method */