ocaml: Fix some unused parameter warnings in OCaml bindings.

diff --git a/generator/generator_ocaml.ml b/generator/generator_ocaml.ml
index 860242c..393a062 100644 (file)
--- a/generator/generator_ocaml.ml
+++ b/generator/generator_ocaml.ml
@@ -537,7 +537,8 @@ copy_table (char * const * argv)
         pr "CAMLprim value ";
         pr "ocaml_guestfs_%s_byte (value *argv, int argn);\n" name;
         pr "CAMLprim value\n";
-        pr "ocaml_guestfs_%s_byte (value *argv, int argn)\n" name;
+        pr "ocaml_guestfs_%s_byte (value *argv, int argn ATTRIBUTE_UNUSED)\n"
+          name;
         pr "{\n";
         pr "  return ocaml_guestfs_%s (argv[0]" name;
         iteri (fun i _ -> pr ", argv[%d]" i) (List.tl params);

diff --git a/ocaml/guestfs_c.c b/ocaml/guestfs_c.c
index 7648ba9..1324fb6 100644 (file)
--- a/ocaml/guestfs_c.c
+++ b/ocaml/guestfs_c.c
@@ -225,7 +225,7 @@ clear_progress_callback (guestfs_h *g)
 }
 
 static void
-progress_callback (guestfs_h *g, void *root,
+progress_callback (guestfs_h *g ATTRIBUTE_UNUSED, void *root,
                    int proc_nr, int serial, uint64_t position, uint64_t total)
 {
   CAMLparam0 ();

diff --git a/ocaml/guestfs_c.h b/ocaml/guestfs_c.h
index 29da053..219dc2f 100644 (file)
--- a/ocaml/guestfs_c.h
+++ b/ocaml/guestfs_c.h
@@ -29,4 +29,14 @@ extern void ocaml_guestfs_raise_closed (const char *func)
 extern char **ocaml_guestfs_strings_val (guestfs_h *g, value sv);
 extern void ocaml_guestfs_free_strings (char **r);
 
+# ifdef __GNUC__
+# ifndef ATTRIBUTE_UNUSED
+#  define ATTRIBUTE_UNUSED __attribute__((__unused__))
+# endif
+#else
+# ifndef ATTRIBUTE_UNUSED
+#  define ATTRIBUTE_UNUSED
+# endif
+#endif
+
 #endif /* GUESTFS_OCAML_C_H */