emulators/wine build failure

[Paul Goyette <paul%whooppee.com@localhost>]

On host netbsd-11.99.6 (amd64)

dlls/ntdll/unix/signal_x86_64.c: In function 'save_context':
dlls/ntdll/unix/signal_x86_64.c:899:5: error: cannot convert to a pointer type
  899 |     if (FPU_sig(sigcontext))
      |     ^~
dlls/ntdll/unix/signal_x86_64.c:904:9: error: cannot convert to a pointer type
  904 |         context->FltSave = *FPU_sig(sigcontext);
      |         ^~~~~~~
dlls/ntdll/unix/signal_x86_64.c: In function 'restore_context':
dlls/ntdll/unix/signal_x86_64.c:935:5: error: cannot convert to a pointer type
  935 |     if (FPU_sig(sigcontext)) *FPU_sig(sigcontext) = context->FltSave;
      |     ^~
dlls/ntdll/unix/signal_x86_64.c:935:5: error: cannot convert to a pointer type
dlls/ntdll/unix/signal_x86_64.c: In function 'fpe_handler':
dlls/ntdll/unix/signal_x86_64.c:2083:9: error: cannot convert to a pointer type
 2083 |         if (FPU_sig(ucontext) && FPU_sig(ucontext)->StatusWord & 0x40)
      |         ^~


+---------------------+--------------------------+----------------------+
| Paul Goyette (.sig) | PGP Key fingerprint:     | E-mail addresses:    |
| (Retired)           | 1B11 1849 721C 56C8 F63A | paul%whooppee.com@localhost    |
| Software Developer  | 6E2E 05FD 15CE 9F2D 5102 | pgoyette%netbsd.org@localhost  |
| & Network Engineer  |                          | pgoyette99%gmail.com@localhost |
+---------------------+--------------------------+----------------------+