make use-specific variables

so we can do nested loops with fr_pair_list_foreach() macros

diff --git a/src/lib/util/pair.h b/src/lib/util/pair.h
index 7106f562da0be25d227310842706ab6c98a3acca..ab7013f900f4612006d74b6374fb06e4238efc0c 100644 (file)
--- a/src/lib/util/pair.h
+++ b/src/lib/util/pair.h
@@ -256,7 +256,7 @@ static inline bool vp_da_data_type_check(fr_pair_t *vp)
  *                             Will be declared in the scope of the loop.
  */
 #define fr_pair_list_foreach(_list_head, _iter) \
-       for (fr_pair_t *_next, *_iter = fr_pair_list_head(_list_head); _next = fr_pair_list_next(_list_head, _iter), _iter != NULL; _iter = _next)
+       for (fr_pair_t *JOIN(_next,_iter), *_iter = fr_pair_list_head(_list_head); JOIN(_next,_iter) = fr_pair_list_next(_list_head, _iter), _iter != NULL; _iter = JOIN(_next,_iter))
 
 /** Append a pair to a list, assigning its value.
  *