The problem is the GNAT.Sockets thin binding on kfreebsd (GNAT.Sockets.Thin.C_Bind() in this case).
See Bug #561156, Message #24 for more info and a thin binding reproducer. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org