[head tinderbox] failure on powerpc64/powerpc

[Dag-Erling Smørgrav]

FreeBSD Tinderbox <tinderbox at freebsd.org> writes:
> cc -O2 -pipe -I/src/lib/libldns/../../contrib/ldns -std=gnu99 -fstack-protector -Wsystem-headers -Werror -Wall -Wno-format-y2k -W -Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes -Wpointer-arith -Wno-uninitialized -Wno-pointer-sign -c /src/lib/libldns/../../contrib/ldns/dnssec_verify.c -o dnssec_verify.o
> cc1: warnings being treated as errors
> /src/lib/libldns/../../contrib/ldns/dnssec_verify.c:638: warning:
> ldns_dnssec_trust_tree_print_sm' defined but not used
> *** [dnssec_verify.o] Error code 1
>
> Stop in /src/lib/libldns.

Why is this happening?  The Makefile sets WARNS to 3, which adds
-Wno-unused-function to CFLAGS, which should suppress this warning.

DES
-- 
Dag-Erling Smørgrav - des at des.no