EMUL_IBCS2 --> EMUL_IBCS2_ELF
Need extra stack space for iBCS2 syscall conversion.
Need ostat() and olstat() for iBCS2 syscall conversion.
Need ofstat() for iBCS2 syscall conversion.
Add iBCS2 COFF loader.  (Eventually there should be a sys/exec_coff.h.)
Add flags for iBCS2 compat.
Add iBCS2 glue.
Move the SVR4 dispatch here.
Remove misplaced SVR4 dispatch.
Don't reread the blasted header.
Rename this for consistency.
Clean up deleted files.
Need prototype of exec_svr4_elf_makecmds().
Add iBCS2 files.
Add missing line.
Reran makesyscalls.sh.
Add vnd.
Fix an obvious bogon when checking multiple file systems, and use the libc
version of err(3).
fix from Matthias Pfaller.
Update of vax port.