output: Fix warnings about unused function arguments in ODT driver.

diff --git a/src/output/odt.c b/src/output/odt.c
index 5c0bee8ea92b53efa28e160eeb7f568375096973..3bbb216da44e973c0dcec5456acc29e21c68bc3e 100644 (file)
--- a/src/output/odt.c
+++ b/src/output/odt.c
@@ -432,17 +432,17 @@ odt_close_driver (struct outp_driver *this)
 }
 
 static void
-odt_open_page (struct outp_driver *this)
+odt_open_page (struct outp_driver *this UNUSED)
 {
 }
 
 static void
-odt_close_page (struct outp_driver *this)
+odt_close_page (struct outp_driver *this UNUSED)
 {
 }
 
 static void
-odt_output_chart (struct outp_driver *this, const struct chart *chart)
+odt_output_chart (struct outp_driver *this UNUSED, const struct chart *chart UNUSED)
 {
  printf ("%s\n", __FUNCTION__);
 }