1 files changed, 4 insertions, 0 deletions
diff --git a/stdio-common/printf_buffer_flush.c b/stdio-common/printf_buffer_flush.c
index 922340cc54..42afe49413 100644
--- a/stdio-common/printf_buffer_flush.c
+++ b/stdio-common/printf_buffer_flush.c
@@ -32,6 +32,7 @@
 # pragma weak __printf_buffer_flush_fp
 # pragma weak __printf_buffer_flush_fp_to_wide
 # pragma weak __printf_buffer_flush_fphex_to_wide
+# pragma weak __printf_buffer_flush_obstack
 #endif /* !SHARED */
 
 static void
@@ -72,6 +73,9 @@ __printf_buffer_do_flush (struct __printf_buffer *buf)
       __printf_buffer_flush_fphex_to_wide
         ((struct __printf_buffer_fphex_to_wide *) buf);
       return;
+    case __printf_buffer_mode_obstack:
+      __printf_buffer_flush_obstack ((struct __printf_buffer_obstack *) buf);
+      return;
     }
   __builtin_trap ();
 }