/* A hsh_compare_func that orders variables A and B by their
names. */
int
-compare_variables (const void *a_, const void *b_, void *foo unused)
+compare_variables (const void *a_, const void *b_, void *foo UNUSED)
{
const struct variable *a = a_;
const struct variable *b = b_;
/* A hsh_hash_func that hashes variable V based on its name. */
unsigned
-hash_variable (const void *v_, void *foo unused)
+hash_variable (const void *v_, void *foo UNUSED)
{
const struct variable *v = v_;