malloc: Add scratch_buffer_dupfree

It returns a copy of the buffer up to a defined size.  It will be used
on realpath sync with gnulib.

1 files changed, 1 insertions, 0 deletions

diff --git a/malloc/Versions b/malloc/Versions
index 94c8ba8040..6693c46ee2 100644
--- a/malloc/Versions
+++ b/malloc/Versions
@@ -75,6 +75,7 @@ libc {
     __libc_thread_freeres;
 
     # struct scratch_buffer support
+    __libc_scratch_buffer_dupfree;
     __libc_scratch_buffer_grow;
     __libc_scratch_buffer_grow_preserve;
     __libc_scratch_buffer_set_array_size;