Old 32-bit binary stopped working after upgrade to 10.1/amd64

[MT]

Hello!

One of the users here is still actively using Applixware office suit. 
The applications worked alright under FreBSD-8.x/i386:

    % file /opt/applix/applix
    /opt/applix/applix: ELF 32-bit LSB executable, Intel 80386, version
    1, dynamically linked (uses shared libs), not stripped

Unfortunately, applix would not start under FreeBSD-10.1/amd64: Bad 
system call. The tail of kdump looks thus:

      ......
      14383 applix   CALL sigprocmask(SIG_BLOCK,0x28071e20,0xffffc788)
      14383 applix   RET   sigprocmask 0
      14383 applix   CALL sigprocmask(SIG_SETMASK,0x28071e34,0)
      14383 applix   RET   sigprocmask 0
      14383 applix   CALL sigprocmask(SIG_BLOCK,0x28071e20,0xffffc788)
      14383 applix   RET   sigprocmask 0
      14383 applix   CALL sigprocmask(SIG_SETMASK,0x28071e34,0)
      14383 applix   RET   sigprocmask 0
      14383 applix   CALL  compat.sigprocmask
      14383 applix   RET   compat.sigprocmask -1 errno 78 Function not
    implemented
      14383 applix   PSIG  SIGSYS SIG_DFL code=SI_KERNEL

I copied the 32-bit libraries from the old install -- they are found, 
according to ldd.

    % ldd /opt/applix/applix
    /opt/bin/applix:
             libX11.so.6 => /opt/lib32/libX11.so.6 (0x2807b000)
             libm.so.2 => /usr/lib32/libm.so.4 (0x281af000)
             libc.so.3 => /usr/lib32/libc.so.3 (0x281c5000)
             libxcb.so.2 => /opt/lib32/libxcb.so.2 (0x28247000)
             libXau.so.6 => /opt/lib/../lib32/libXau.so.6 (0x2825e000)
             libXdmcp.so.6 => /opt/lib/../lib32/libXdmcp.so.6 (0x28261000)
             libpthread-stubs.so.0 =>
    /opt/lib/../lib32/libpthread-stubs.so.0 (0x28267000)
             librpcsvc.so.5 => /usr/lib32/librpcsvc.so.5 (0x28269000)
             libc.so.7 => /usr/lib32/libc.so.7 (0x28271000)

Yes, the usage of libm.so.4 instead of 2 looks funny, but that's how it 
always was -- the old (8.x) install does not have libm.so.2 at all. 
Besides, it dies at the very start -- would not even process the 
`-version' or `-help' options....

The new kernel includes GENERIC -- without disabling any of the 
COMPAT-options.

What else am I missing? Thank you! Yours,

    -mi