[Bug libfortran/83613] [8 Regression] Executing gfortran.dg/inquire_internal.f90 hangs on darwin after r255621

[jvdelisle at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83613

--- Comment #6 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
Try this patch:

diff --git a/libgfortran/io/unit.c b/libgfortran/io/unit.c
index 2ca8525fbec..a655665aa8a 100644
--- a/libgfortran/io/unit.c
+++ b/libgfortran/io/unit.c
@@ -707,7 +707,9 @@ init_units (void)
     }
   /* The default internal units.  */
   u = insert_unit (GFC_INTERNAL_UNIT);
+  __gthread_mutex_unlock (&u->lock);
   u = insert_unit (GFC_INTERNAL_UNIT4);
+  __gthread_mutex_unlock (&u->lock);
 }