When R37c was brought out, I fixed a bug on (among others) IA64. The simple memory allocator added a pointer (or two, in Espie's) to the storage, placed before what the user got. Of course, gcc wanted to align the struct not taking this into account, failing evilly. Luckily, another FTBFS was not my fault, but sigsetjmp(3) was merely broken on S/390 with dietlibc; waldi fixed it in the meanwhile, but I uploaded another version of mksh to Debian for now whose mksh-static binary links against glibc instead and added me a TODO bug.
All the testsuite failures are certainly interesting though; the hppa one looks like a bug in ed(1) there; as to the others, either Perl, or binfmt_misc was configured to accept or drop (but not reject) shebangs præfixed with a BOM. Whatever.
Maybe I can now finally go back to working on MirBSD instead? :D
After all, we want a new snapshot (for NetInstall, at least).