Re: buildworld error

Now...
make buildworld
root_at_krsna:/usr/src # time make buildworld
--------------------------------------------------------------
>>> World build started on Sun Mar 12 00:52:52 UTC 2017
--------------------------------------------------------------

--------------------------------------------------------------
>>> Rebuilding the temporary build tree
--------------------------------------------------------------
rm -rf /usr/obj/usr/src/tmp
rm -rf /usr/obj/usr/src/lib32
mkdir -p /usr/obj/usr/src/tmp/lib
mkdir -p /usr/obj/usr/src/tmp/lib/casper
mkdir -p /usr/obj/usr/src/tmp/usr
mkdir -p /usr/obj/usr/src/tmp/legacy/bin
mkdir -p /usr/obj/usr/src/tmp/legacy/usr
mtree -deU -f /usr/src/etc/mtree/BSD.usr.dist  -p
/usr/obj/usr/src/tmp/legacy/usr >/dev/null
mtree -deU -f /usr/src/etc/mtree/BSD.groff.dist  -p
/usr/obj/usr/src/tmp/legacy/usr >/dev/null
mtree -deU -f /usr/src/etc/mtree/BSD.include.dist  -p
/usr/obj/usr/src/tmp/legacy/usr/include >/dev/null
mtree -deU -f /usr/src/etc/mtree/BSD.usr.dist  -p /usr/obj/usr/src/tmp/usr
>/dev/null
mtree -deU -f /usr/src/etc/mtree/BSD.include.dist  -p
/usr/obj/usr/src/tmp/usr/include >/dev/null
ln -sf /usr/src/sys /usr/obj/usr/src/tmp
mtree -deU -f /usr/src/etc/mtree/BSD.debug.dist  -p
/usr/obj/usr/src/tmp/legacy/usr/lib >/dev/null
mtree -deU -f /usr/src/etc/mtree/BSD.debug.dist  -p
/usr/obj/usr/src/tmp/usr/lib >/dev/null
mtree -deU -f /usr/src/etc/mtree/BSD.lib32.dist  -p
/usr/obj/usr/src/tmp/usr >/dev/null
mtree -deU -f /usr/src/etc/mtree/BSD.lib32.dist  -p
/usr/obj/usr/src/tmp/legacy/usr/lib/debug/usr >/dev/null
mtree -deU -f /usr/src/etc/mtree/BSD.lib32.dist  -p
/usr/obj/usr/src/tmp/usr/lib/debug/usr >/dev/null
mkdir -p /usr/obj/usr/src/tmp/usr/tests
mtree -deU -f /usr/src/etc/mtree/BSD.tests.dist  -p
/usr/obj/usr/src/tmp/usr/tests >/dev/null
mkdir -p /usr/obj/usr/src/tmp/usr/lib/debug//usr/tests
mtree -deU -f /usr/src/etc/mtree/BSD.tests.dist  -p
/usr/obj/usr/src/tmp/usr/lib/debug//usr/tests >/dev/null

--------------------------------------------------------------
>>> stage 1.1: legacy release compatibility shims
--------------------------------------------------------------
cd /usr/src; MAKEOBJDIRPREFIX=/usr/obj/usr/src/tmp  INSTALL="sh
/usr/src/tools/install.sh"  TOOLS_PREFIX=/usr/obj/usr/src/tmp
PATH=/usr/obj/usr/src/tmp/legacy/usr/sbin:/usr/obj/usr/src/tmp/legacy/usr/bin:/usr/obj/usr/src/tmp/legacy/bin:/sbin:/bin:/usr/sbin:/usr/bin
WORLDTMP=/usr/obj/usr/src/tmp  MAKEFLAGS="-m /usr/src/tools/build/mk  -m
/usr/src/share/mk" make  -f Makefile.inc1  DESTDIR=  BOOTSTRAPPING=1200022
SSP_CFLAGS=  MK_HTML=no NO_LINT=yes MK_MAN=no  -DNO_PIC MK_PROFILE=no
-DNO_SHARED  -DNO_CPU_CFLAGS MK_WARNS=no MK_CTF=no  MK_CLANG_EXTRAS=no
MK_CLANG_FULL=no  MK_LLDB=no MK_TESTS=no  MK_INCLUDES=yes legacy
===> tools/build (obj,includes,all,install)
/usr/obj/usr/src/tmp/usr/src/tools/build created for /usr/src/tools/build
/usr/local/libexec/ccache/cc  -O2 -pipe  -MD  -MF.depend.dummy.o -MTdummy.o
-std=gnu99  -Qunused-arguments  -I/usr/obj/usr/src/tmp/legacy/usr/include
-c /usr/src/tools/build/dummy.c -o dummy.o
building static egacy library
ar -crD libegacy.a `NM='nm' NMFLAGS=''  lorder dummy.o  | tsort -q`
ranlib -D libegacy.a
sh /usr/src/tools/install.sh  -C -o root -g wheel -m 444   libegacy.a
/usr/obj/usr/src/tmp/legacy/usr/lib/

--------------------------------------------------------------
>>> stage 1.2: bootstrap tools
--------------------------------------------------------------
cd /usr/src; MAKEOBJDIRPREFIX=/usr/obj/usr/src/tmp  INSTALL="sh
/usr/src/tools/install.sh"  TOOLS_PREFIX=/usr/obj/usr/src/tmp
PATH=/usr/obj/usr/src/tmp/legacy/usr/sbin:/usr/obj/usr/src/tmp/legacy/usr/bin:/usr/obj/usr/src/tmp/legacy/bin:/sbin:/bin:/usr/sbin:/usr/bin
WORLDTMP=/usr/obj/usr/src/tmp  MAKEFLAGS="-m /usr/src/tools/build/mk  -m
/usr/src/share/mk" make  -f Makefile.inc1  DESTDIR=  BOOTSTRAPPING=1200022
SSP_CFLAGS=  MK_HTML=no NO_LINT=yes MK_MAN=no  -DNO_PIC MK_PROFILE=no
-DNO_SHARED  -DNO_CPU_CFLAGS MK_WARNS=no MK_CTF=no  MK_CLANG_EXTRAS=no
MK_CLANG_FULL=no  MK_LLDB=no MK_TESTS=no  MK_INCLUDES=yes bootstrap-tools
===> lib/clang/libllvmminimal (obj,all,install)
/usr/obj/usr/src/tmp/usr/src/lib/clang/libllvmminimal created for
/usr/src/lib/clang/libllvmminimal
/usr/obj/usr/src/tmp/usr/src/lib/clang/libllvmminimal/Support created for
/usr/src/lib/clang/libllvmminimal
/usr/obj/usr/src/tmp/usr/src/lib/clang/libllvmminimal/TableGen created for
/usr/src/lib/clang/libllvmminimal
/usr/local/libexec/ccache/c++  -O2 -pipe -I/usr/src/lib/clang/include
-I/usr/src/contrib/llvm/include -DLLVM_ON_UNIX -DLLVM_ON_FREEBSD
-D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS
-DLLVM_DEFAULT_TARGET_TRIPLE=\"x86_64-unknown-freebsd12.0\"
-DLLVM_HOST_TRIPLE=\"x86_64-unknown-freebsd12.0\"
-DDEFAULT_SYSROOT=\"/usr/obj/usr/src/tmp\" -MD -MF.depend.Support_APInt.o
-MTSupport/APInt.o -Qunused-arguments
-I/usr/obj/usr/src/tmp/legacy/usr/include -std=c++11 -fno-exceptions
-fno-rtti  -stdlib=libc++ -Wno-c++11-extensions  -c
/usr/src/contrib/llvm/lib/Support/APInt.cpp -o Support/APInt.o
In file included from /usr/src/contrib/llvm/lib/Support/APInt.cpp:15:
In file included from /usr/src/contrib/llvm/include/llvm/ADT/APInt.h:20:
In file included from
/usr/src/contrib/llvm/include/llvm/Support/MathExtras.h:19:
In file included from /usr/include/c++/v1/algorithm:634:
In file included from /usr/include/c++/v1/memory:604:
/usr/include/c++/v1/new:73:10: fatal error: '__undef___deallocate' file not
found
#include <__undef___deallocate>
         ^
1 error generated.
*** Error code 1

Stop.
make[3]: stopped in /usr/src/lib/clang/libllvmminimal
*** Error code 1

Stop.
make[2]: stopped in /usr/src
*** Error code 1

Stop.
make[1]: stopped in /usr/src
*** Error code 1

Stop.
make: stopped in /usr/src