port-riscv/60889: riscv64: compat_netbsd32 is busticated

["campbell+netbsd%mumble.net@localhost via gnats" <gnats-admin%NetBSD.org@localhost>]

>Number:         60889
>Category:       port-riscv
>Synopsis:       riscv64: compat_netbsd32 is busticated
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-riscv-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Oct 16 17:35:00 +0000 2026
>Originator:     Taylor R Campbell
>Release:        current
>Organization:
RiscvBSD 32 LLC (Limited Compatibility Company)
>Environment:
>Description:
/home/riastradh/netbsd/current/src/sys/compat/netbsd32/netbsd32_exec_aout.c: In function 'exec_netbsd32_makecmds':
/home/riastradh/netbsd/current/src/sys/compat/netbsd32/netbsd32_exec_aout.c:119:15: error: 'NETBSD32_MID_MACHINE' undeclared (first use in this function)
  119 |         case (NETBSD32_MID_MACHINE << 16) | ZMAGIC:
      |               ^~~~~~~~~~~~~~~~~~~~

>How-To-Repeat:
options COMPAT_NETBSD32
options EXEC_ELF32
>Fix: