Port to clang 3.8.0

It does not allow a for-loop's control var to be an anonymous struct.
* src/lisp.h (struct for_each_tail_internal): New type.
(FOR_EACH_TAIL_INTERNAL): Use it.

diff --git a/src/lisp.h b/src/lisp.h
index edbd15170f81e383dfb72a8d2b55476e7520ca89..b753971fb9c9c5b47b0452ee04b1c11083c6ca6a 100644 (file)
--- a/src/lisp.h
+++ b/src/lisp.h
@@ -4603,6 +4603,14 @@ enum
 #define FOR_EACH_TAIL_SAFE(list) \
   FOR_EACH_TAIL_INTERNAL (list, (void) 0, (void) (li.tail = Qnil), false)
 
+/* Iterator intended for use only within FOR_EACH_TAIL_INTERNAL.  */
+struct for_each_tail_internal
+{
+  Lisp_Object tail, tortoise;
+  intptr_t max, n;
+  unsigned short int q;
+};
+
 /* Like FOR_EACH_TAIL (LIST), except evaluate DOTTED or CYCLE,
    respectively, if a dotted list or cycle is found, and check for
    quit if CHECK_QUIT.  This is an internal macro intended for use
@@ -4619,9 +4627,7 @@ enum
    is little point to calling maybe_quit here.  */
 
 #define FOR_EACH_TAIL_INTERNAL(list, dotted, cycle, check_quit)                \
-  for (struct { Lisp_Object tail, tortoise; intptr_t max, n;           \
-               unsigned short int q;                                   \
-             } li = { list, list, 2, 0, 2 };                           \
+  for (struct for_each_tail_internal li = { list, list, 2, 0, 2 };     \
        CONSP (li.tail) || (dotted, false);                             \
        (li.tail = XCDR (li.tail),                                      \
        ((--li.q != 0                                                   \