[PATCH 6/9] xdiff: mark unused parameter in xdl_call_hunk_func()

[Jeff King <peff@peff.net>]

This function is used interchangeably with xdl_emit via a function
pointer, so we can't just drop the unused parameter. Mark it to silence
-Wunused-parameter.

Signed-off-by: Jeff King <peff@peff.net>
---
 xdiff/xdiffi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/xdiff/xdiffi.c b/xdiff/xdiffi.c
index 32652ded2d..344c2dfc3e 100644
--- a/xdiff/xdiffi.c
+++ b/xdiff/xdiffi.c
@@ -973,7 +973,7 @@ void xdl_free_script(xdchange_t *xscr) {
 	}
 }
 
-static int xdl_call_hunk_func(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb,
+static int xdl_call_hunk_func(xdfenv_t *xe UNUSED, xdchange_t *xscr, xdemitcb_t *ecb,
 			      xdemitconf_t const *xecfg)
 {
 	xdchange_t *xch, *xche;
-- 
2.39.0.546.g5ea984bc66