Avoid unused parameter warning

diff --git a/backends/x86_initreg_sample.c b/backends/x86_initreg_sample.c
index 47cd91c238125152fdf1deba2444bf37107180e4..6f99bf5352cf9e1029edf43336703783cf19d2a6 100644 (file)
--- a/backends/x86_initreg_sample.c
+++ b/backends/x86_initreg_sample.c
@@ -39,6 +39,10 @@ x86_sample_sp_pc (const Dwarf_Word *regs, uint32_t n_regs,
   (void)n_regs;
   (void)regs_mapping;
   (void)n_regs_mapping;
+  (void)sp;
+  (void)sp_index;
+  (void)pc;
+  (void)pc_index;
   return false;
 #else /* __x86_64__ */
   /* TODO: Register locations could be cached and rechecked on a