I have tested the patches by Jeroen Oortwijn and Francois Revol against HEAD of git://anonscm.debian.org/d-i/os-prober.git (commit hash 2041d683cb853c26c6a30fd904a4d9385880b85b) in qemu on i386 Debian Jessie with Haiku hrev48683 and can confirm that they work.
Josef Gajdusek