Silenced a warning of FreeBSD about shifting 32-bit dev_t by 32 bit.

Silenced warnings of FreeBSD about unused variables.

libisofs/aaip-os-freebsd.c

@@ -125,10 +125,10 @@ int aaip_get_acl_text(char *path, char **text, int flag)
 int aaip_get_attr_list(char *path, size_t *num_attrs, char ***names,
                        size_t **value_lengths, char ***values, int flag)
 {
- int ret, retry= 0;
+ int ret;
  char *list= NULL;
- ssize_t list_size= 0, i, num_names, value_ret;
- size_t a_acl_len= 0, d_acl_len= 0, acl_len= 0;
+ ssize_t i, num_names;
+ size_t a_acl_len= 0, acl_len= 0;
  unsigned char *a_acl= NULL, *d_acl= NULL, *acl= NULL;
  char *acl_text= NULL;
 
@@ -288,7 +288,7 @@ int aaip_set_attr_list(char *path, size_t num_attrs, char **names,
                        size_t *value_lengths, char **values, int flag)
 {
  int ret, has_default_acl= 0, was_xattr= 0;
- size_t i, consumed, acl_text_fill, list_size= 0;
+ size_t i, consumed, acl_text_fill;
  char *acl_text= NULL, *list= NULL;
 
  for(i= 0; i < num_attrs; i++) {

libisofs/rockridge_read.c

@@ -402,6 +402,8 @@ int read_rr_SL(struct susp_sys_user_entry *sl, char **dest, int *cont)
  */
 int read_rr_PN(struct susp_sys_user_entry *pn, struct stat *st)
 {
+    int high_shift= 0;
+
     if (pn == NULL || pn == NULL) {
         return ISO_NULL_POINTER;
     }
@@ -413,8 +415,22 @@ int read_rr_PN(struct susp_sys_user_entry *pn, struct stat *st)
         return ISO_WRONG_RR;
     }
 
+    /* ts A90129 */
+    /* (dev_t << 32) causes compiler warnings on FreeBSD.
+       RRIP 1.10 4.1.2 prescribes PN "Dev_t High" to be 0 on 32 bit dev_t.
+    */
+    st->st_rdev = (dev_t)iso_read_bb(pn->data.PN.low, 4, NULL);
+    if (sizeof(st->st_rdev) > 4) {
+        high_shift = 32;
+        st->st_rdev |= (dev_t)((dev_t)iso_read_bb(pn->data.PN.high, 4, NULL) <<
+                               high_shift);
+    }
+
+/* <<< was originally:
     st->st_rdev = (dev_t)((dev_t)iso_read_bb(pn->data.PN.high, 4, NULL) << 32)
                   | (dev_t)iso_read_bb(pn->data.PN.low, 4, NULL);
+*/
+
     return ISO_SUCCESS;
 }