problem to build world

Hi all.

r256148 buildworld gives this error:

===> secure/usr.bin/ssh (all)
cc  -O2 -pipe -march=athlon64-sse3 -mtune=athlon64-sse3 
-I/usr/src/secure/usr.bin/ssh/../../../crypto/openssh -include 
ssh_namespace.h -DHAVE_LDNS=1 -include krb5_config.h -std=gnu99 
-Qunused-arguments -fstack-protector -Wno-pointer-sign -Wno-empty-body 
-Wno-string-plus-int -Wno-tautological-compare -Wno-unused-value 
-Wno-parentheses-equality -Wno-unused-function -Wno-conversion 
-Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter 
-Wno-parentheses -c 
/usr/src/secure/usr.bin/ssh/../../../crypto/openssh/ssh.c
cc  -O2 -pipe -march=athlon64-sse3 -mtune=athlon64-sse3 
-I/usr/src/secure/usr.bin/ssh/../../../crypto/openssh -include 
ssh_namespace.h -DHAVE_LDNS=1 -include krb5_config.h -std=gnu99 
-Qunused-arguments -fstack-protector -Wno-pointer-sign -Wno-empty-body 
-Wno-string-plus-int -Wno-tautological-compare -Wno-unused-value 
-Wno-parentheses-equality -Wno-unused-function -Wno-conversion 
-Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter 
-Wno-parentheses -c 
/usr/src/secure/usr.bin/ssh/../../../crypto/openssh/readconf.c
cc  -O2 -pipe -march=athlon64-sse3 -mtune=athlon64-sse3 
-I/usr/src/secure/usr.bin/ssh/../../../crypto/openssh -include 
ssh_namespace.h -DHAVE_LDNS=1 -include krb5_config.h -std=gnu99 
-Qunused-arguments -fstack-protector -Wno-pointer-sign -Wno-empty-body 
-Wno-string-plus-int -Wno-tautological-compare -Wno-unused-value 
-Wno-parentheses-equality -Wno-unused-function -Wno-conversion 
-Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter 
-Wno-parentheses -c 
/usr/src/secure/usr.bin/ssh/../../../crypto/openssh/clientloop.c
cc  -O2 -pipe -march=athlon64-sse3 -mtune=athlon64-sse3 
-I/usr/src/secure/usr.bin/ssh/../../../crypto/openssh -include 
ssh_namespace.h -DHAVE_LDNS=1 -include krb5_config.h -std=gnu99 
-Qunused-arguments -fstack-protector -Wno-pointer-sign -Wno-empty-body 
-Wno-string-plus-int -Wno-tautological-compare -Wno-unused-value 
-Wno-parentheses-equality -Wno-unused-function -Wno-conversion 
-Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter 
-Wno-parentheses -c 
/usr/src/secure/usr.bin/ssh/../../../crypto/openssh/sshtty.c
cc  -O2 -pipe -march=athlon64-sse3 -mtune=athlon64-sse3 
-I/usr/src/secure/usr.bin/ssh/../../../crypto/openssh -include 
ssh_namespace.h -DHAVE_LDNS=1 -include krb5_config.h -std=gnu99 
-Qunused-arguments -fstack-protector -Wno-pointer-sign -Wno-empty-body 
-Wno-string-plus-int -Wno-tautological-compare -Wno-unused-value 
-Wno-parentheses-equality -Wno-unused-function -Wno-conversion 
-Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter 
-Wno-parentheses -c 
/usr/src/secure/usr.bin/ssh/../../../crypto/openssh/sshconnect.c
cc  -O2 -pipe -march=athlon64-sse3 -mtune=athlon64-sse3 
-I/usr/src/secure/usr.bin/ssh/../../../crypto/openssh -include 
ssh_namespace.h -DHAVE_LDNS=1 -include krb5_config.h -std=gnu99 
-Qunused-arguments -fstack-protector -Wno-pointer-sign -Wno-empty-body 
-Wno-string-plus-int -Wno-tautological-compare -Wno-unused-value 
-Wno-parentheses-equality -Wno-unused-function -Wno-conversion 
-Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter 
-Wno-parentheses -c 
/usr/src/secure/usr.bin/ssh/../../../crypto/openssh/sshconnect1.c
cc  -O2 -pipe -march=athlon64-sse3 -mtune=athlon64-sse3 
-I/usr/src/secure/usr.bin/ssh/../../../crypto/openssh -include 
ssh_namespace.h -DHAVE_LDNS=1 -include krb5_config.h -std=gnu99 
-Qunused-arguments -fstack-protector -Wno-pointer-sign -Wno-empty-body 
-Wno-string-plus-int -Wno-tautological-compare -Wno-unused-value 
-Wno-parentheses-equality -Wno-unused-function -Wno-conversion 
-Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter 
-Wno-parentheses -c 
/usr/src/secure/usr.bin/ssh/../../../crypto/openssh/sshconnect2.c
cc  -O2 -pipe -march=athlon64-sse3 -mtune=athlon64-sse3 
-I/usr/src/secure/usr.bin/ssh/../../../crypto/openssh -include 
ssh_namespace.h -DHAVE_LDNS=1 -include krb5_config.h -std=gnu99 
-Qunused-arguments -fstack-protector -Wno-pointer-sign -Wno-empty-body 
-Wno-string-plus-int -Wno-tautological-compare -Wno-unused-value 
-Wno-parentheses-equality -Wno-unused-function -Wno-conversion 
-Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter 
-Wno-parentheses -c 
/usr/src/secure/usr.bin/ssh/../../../crypto/openssh/mux.c
cc  -O2 -pipe -march=athlon64-sse3 -mtune=athlon64-sse3 
-I/usr/src/secure/usr.bin/ssh/../../../crypto/openssh -include 
ssh_namespace.h -DHAVE_LDNS=1 -include krb5_config.h -std=gnu99 
-Qunused-arguments -fstack-protector -Wno-pointer-sign -Wno-empty-body 
-Wno-string-plus-int -Wno-tautological-compare -Wno-unused-value 
-Wno-parentheses-equality -Wno-unused-function -Wno-conversion 
-Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter 
-Wno-parentheses -c 
/usr/src/secure/usr.bin/ssh/../../../crypto/openssh/roaming_common.c
cc  -O2 -pipe -march=athlon64-sse3 -mtune=athlon64-sse3 
-I/usr/src/secure/usr.bin/ssh/../../../crypto/openssh -include 
ssh_namespace.h -DHAVE_LDNS=1 -include krb5_config.h -std=gnu99 
-Qunused-arguments -fstack-protector -Wno-pointer-sign -Wno-empty-body 
-Wno-string-plus-int -Wno-tautological-compare -Wno-unused-value 
-Wno-parentheses-equality -Wno-unused-function -Wno-conversion 
-Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter 
-Wno-parentheses -c 
/usr/src/secure/usr.bin/ssh/../../../crypto/openssh/roaming_client.c
cc  -O2 -pipe -march=athlon64-sse3 -mtune=athlon64-sse3 
-I/usr/src/secure/usr.bin/ssh/../../../crypto/openssh -include 
ssh_namespace.h -DHAVE_LDNS=1 -include krb5_config.h -std=gnu99 
-Qunused-arguments -fstack-protector -Wno-pointer-sign -Wno-empty-body 
-Wno-string-plus-int -Wno-tautological-compare -Wno-unused-value 
-Wno-parentheses-equality -Wno-unused-function -Wno-conversion 
-Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter 
-Wno-parentheses -c 
/usr/src/secure/usr.bin/ssh/../../../crypto/openssh/gss-genr.c
cc  -O2 -pipe -march=athlon64-sse3 -mtune=athlon64-sse3 
-I/usr/src/secure/usr.bin/ssh/../../../crypto/openssh -include 
ssh_namespace.h -DHAVE_LDNS=1 -include krb5_config.h -std=gnu99 
-Qunused-arguments -fstack-protector -Wno-pointer-sign -Wno-empty-body 
-Wno-string-plus-int -Wno-tautological-compare -Wno-unused-value 
-Wno-parentheses-equality -Wno-unused-function -Wno-conversion 
-Wno-switch -Wno-switch-enum -Wno-knr-promoted-parameter 
-Wno-parentheses -L/usr/obj/usr/src/tmp/usr/lib/private -rpath 
/usr/lib/private -o ssh ssh.o readconf.o clientloop.o sshtty.o 
sshconnect.o sshconnect1.o sshconnect2.o mux.o roaming_common.o 
roaming_client.o gss-genr.o -lssh -lutil -lldns -lgssapi -lcrypt 
-lcrypto -lz
/usr/obj/usr/src/tmp/usr/lib/private/libldns.so: undefined reference to 
`ldns_b64_pton_calculate_size'
/usr/obj/usr/src/tmp/usr/lib/private/libldns.so: undefined reference to 
`ldns_b64_ntop_calculate_size'
cc: error: linker command failed with exit code 1 (use -v to see invocation)
*** Error code 1

Stop.
make[5]: stopped in /usr/src/secure/usr.bin/ssh
*** Error code 1


*<root> cat /etc/src.conf *
WITHOUT_AMD=YES
WITHOUT_ATM=YES
WITHOUT_AUDIT=YES
WITHOUT_AUTHPF=YES
WITHOUT_BLUETOOTH=YES
WITHOUT_BSNMP=YES
WITHOUT_CTM=YES
WITHOUT_FREEBSD_UPDATE=YES
WITHOUT_GAMES=YES
WITHOUT_INET6=YES
WITHOUT_IPFILTER=YES
WITHOUT_IPFW=YES
WITHOUT_IPX=YES
WITHOUT_JAIL=YES
WITHOUT_NDIS=YES
WITHOUT_NIS=YES
WITHOUT_PORTSNAP=YES
WITHOUT_PROFILE=YES
WITHOUT_QUOTAS=YES
WITHOUT_RCMDS=YES
WITHOUT_RCS=YES
WITHOUT_SVNLITE=YES
WITH_CLANG=YES
WITH_CLANG_EXTRAS=YES
WITH_CLANG_IS_CC=YES
WITH_BSD_GREP=YES
WITH_ICONV=YES
WITH_LIBICONV_COMPAT=YES
MALLOC_PRODUCTION=YES

*<root> cat /etc/make.conf *
PUTYPE?=athlon64-sse3
KERNCONF=Kernel
NO_CPU_CFLAGS=false
NO_CPU_COPTFLAGS=false
NO_FSCHG=
NO_WERROR=
WERROR=
MAKE_JOBS_NUMBER=5
BATCH_DELETE_OLD_FILES=yes

# IP6_v
WITHOUT_INET6=  yes
WITHOUT_IPV6=   yes

WITH_SYSTEM_ICU=            yes
MALLOC_PRODUCTION=          yes
WITH_MMX=                   yes
WITH_SSE=                   yes
WITH_SSE2=                  yes
WITH_SSE3=                  yes
WITH_SSE4A=                 yes
WITH_3DNOW=                 yes
WITH_THREADS=               yes
WITH_PKGNG=                 yes
WITHOUT_PROFILE=            yes
WITHOUT_DEBUG=              yes
WITHOUT_MODULES=            bktr plip

.if ${.CURDIR:M*/usr/src/*} || ${.CURDIR:M*/usr/obj/*}
CFLAGS+= -march=athlon64-sse3 -mtune=athlon64-sse3
CPPFLAGS+= -D_FORTIFY_SOURCE=2
CXXFLAGS+= -std=c++11 -stdlib=libc++
WITH_LIBCPLUSPLUS=YES
.endif