port-sparc/54660: undefined reference in libsupc++.a on netbsd-9/sparc

[jdbaker%consolidated.net@localhost]

>Number:         54660
>Category:       port-sparc
>Synopsis:       undefined reference in libsupc++.a on netbsd-9/sparc
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    port-sparc-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Oct 30 02:20:00 +0000 2019
>Originator:     John D. Baker
>Release:        NetBSD/sparc-9.0_BETA, pkgsrc-2019Q3
>Organization:
>Environment:
NetBSD jean.technoskunk.fur 9.0_BETA NetBSD 9.0_BETA (JEAN) #26: Wed Oct 23 15:42:18 CDT 2019  sysop%plex760.technoskunk.fur@localhost:/r0/build/netbsd-9/obj/sparc/sys/arch/sparc/compile/JEAN sparc

>Description:
Building "sysutils/apcupsd" on NetBSD/sparc-9.0_BETA fails linking with:

[...]
  LD    src/apcupsd
ld: /usr/lib/libsupc++.a(eh_throw.o):(.text+0x78): undefined reference to `__gnu_cxx::__exchange_and_add(int volatile*, int)'


I have an old binary package from the last time I built apcupsd on sparc.
It reports OS_VERSION of 8.99.26.  So whatever the gcc/g++ version and
libraries in use at that time, it worked fine.


>How-To-Repeat:
See above.
>Fix: