kern/55391: Netscape 4.79 doesn't run under COMPAT_LINUX32

[jmcneill%invisible.ca@localhost]

>Number:         55391
>Category:       kern
>Synopsis:       Netscape 4.79 doesn't run under COMPAT_LINUX32
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Jun 16 10:55:00 +0000 2020
>Originator:     Jared McNeill
>Release:        9.0_STABLE
>Organization:
>Environment:
NetBSD session.invisible.ca 9.0_STABLE NetBSD 9.0_STABLE (GENERIC) #0: Sat Jun 13 05:56:44 UTC 2020  mkrepro%mkrepro.NetBSD.org@localhost:/usr/src/sys/arch/amd64/compile/GENERIC amd64
>Description:
Trying to start Netscape Communicator 4.79 on NetBSD 9 crashes immediately:

session$ /opt/netscape/netscape 
Illegal instruction (core dumped) 

>How-To-Repeat:
- Install the following packages from pkgsrc:
  - emulators/suse131_32_x11
  - emulators/suse131_32_compat
- Fetch and extract the Netscape distribution: https://ftp.nluug.nl/netscape/communicator/english/4.79/unix/supported/linux22/complete_install/communicator-v479-us.x86-unknown-linux2.2.tar.gz
- Edit the ns-install script and change all references of /bin/uname to /usr/bin/uname
- Run ./ns-install
- Run netscape
>Fix: