Build a single file with -Wuse-after-free=1 if the compiler supports it to avoid an over-careful check by the compiler.
This bug was referenced in samba master: 89e0c732b1c45f6498ed0f39add77c2a52afddce 971441ca5244b0e56f6b664d785fcefa3867ede1
Created attachment 17347 [details] Patch for v4-16-test