vm, structs: use FLEX_ARRAY macro.

* vm.c (struct vm_closure): Use the FLEX_ARRAY macro to define
the trailing array at the end of the structure instead of
hard-coding [1].

* struct.c (struct struct_inst): Likewise.

1 files changed, 1 insertions, 1 deletions

diff --git a/struct.c b/struct.c
index 992f51bb..fccd0928 100644
--- a/struct.c
+++ b/struct.c
@@ -100,7 +100,7 @@ struct struct_inst {
   cnum id : sizeof (cnum) * CHAR_BIT - TAG_SHIFT;
   unsigned lazy : 1;
   unsigned dirty : 1;
-  val slot[1];
+  val slot[FLEX_ARRAY];
 };
 
 val struct_type_s, meth_s, print_s, make_struct_lit_s;