Avoid compiler depend error

ref r64492

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@64503 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 1 insertions, 1 deletions

diff --git a/cont.c b/cont.c
index 408db21a6d..0f68a99315 100644
--- a/cont.c
+++ b/cont.c
@@ -175,7 +175,7 @@ struct rb_fiber_struct {
     rb_context_t cont;
     VALUE first_proc;
     struct rb_fiber_struct *prev;
-    BITFIELD(enum fiber_status) status : 2;
+    BITFIELD(enum fiber_status, status, 2);
     /* If a fiber invokes "transfer",
      * then this fiber can't "resume" any more after that.
      * You shouldn't mix "transfer" and "resume".