12013 fix GCC4 as primary compiler

@@ -152,13 +152,18 @@
         return 0;
 }
 
 static bool rl_is_tagged(struct range_list *rl)
 {
-        sval_t invalid = { .type = &ullong_ctype, .value = (1ULL << 56) };
-        sval_t invalid_kernel = { .type = &ullong_ctype, .value = (0xff8ULL << 52) };
+        sval_t invalid;
+        sval_t invalid_kernel;
 
+        invalid.type = &ullong_ctype;
+        invalid.value = 1ULL << 56;
+        invalid_kernel.type = &ullong_ctype;
+        invalid_kernel.value = 0xff8ULL << 52;
+
         /*
          * We only care for tagged addresses, thus ignore anything where the
          * ranges of potential values cannot possibly have any of the top byte
          * bits set.
          */