Restore rb_exec_recursive_outer

This was a public method, so we should probably keep it.

1 files changed, 1 insertions, 0 deletions

diff --git a/internal/thread.h b/internal/thread.h
index 919ad96580..63f03bb94a 100644
--- a/internal/thread.h
+++ b/internal/thread.h
@@ -35,6 +35,7 @@ int rb_thread_to_be_killed(VALUE thread);
 void rb_mutex_allow_trap(VALUE self, int val);
 VALUE rb_uninterruptible(VALUE (*b_proc)(VALUE), VALUE data);
 VALUE rb_mutex_owned_p(VALUE self);
+VALUE rb_exec_recursive_outer_mid(VALUE (*f)(VALUE g, VALUE h, int r), VALUE g, VALUE h, ID mid);
 
 int rb_thread_wait_for_single_fd(int fd, int events, struct timeval * timeout);