"make buildworld" fails for r360785?

Hello:
	On a system running:

FreeBSD 13.0-CURRENT #0 r354131: Mon Oct 28 17:27:33 EDT 2019  amd64

	Today around noon I downloaded a fresh copy of the source tree
(for base/head) to r360785.
	make.conf:

#WITH_DEBUG=yes

SENDMAIL_CFLAGS=-I/usr/local/include/sasl -DSASL
SENDMAIL_LDFLAGS=-L/usr/local/lib
SENDMAIL_LDADD=-lsasl2

#DEFAULT_VERSIONS+=linux=c6_64 samba=4.4 python=3.5 python3=3.5
DEFAULT_VERSIONS+=linux=c7 samba=4.10

# Possible values: 2.7, 3.4, 3.5, 3.6
DEFAULT_VERSIONS+=python=3.7

# Possible values: 2.7
DEFAULT_VERSIONS+=python2=2.7

# Possible values: 3.4, 3.5, 3.6
DEFAULT_VERSIONS+=python3=3.7

DEFAULT_VERSIONS+=perl5=5.30

DEFAULT_VERSIONS+=java=12

DEFAULT_VERSIONS+=samba=4.10

#WITH_CCACHE_BUILD=yes
#CCACHE_DIR=/var/tmp

	src.conf:

WITHOUT_PROFILE=yes
WITHOUT_TESTS=yes
WITH_DEBUG=yes
WITHOUT_DEBUG_FILES=yes
#WITH_CCACHE_BUILD=yes
#CCACHE_DIR=/var/tmp

#PORTS_MODULES=sysutils/lsof graphics/drm-legacy-kmod graphics/gpu-firmware-kmod
#PORTS_MODULES += 
PORTS_MODULES += graphics/drm-legacy-kmod
PORTS_MODULES += graphics/gpu-firmware-kmod
PORTS_MODULES += sysutils/lsof

	"make buildowrld" fails with:

>  c++  -O2 -pipe -fno-common -I/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libclang -I/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libllvm -I/usr/src/contrib/llvm-project/clang/lib/Basic -I/usr/src/contrib/llvm-project/clang/lib/Driver -I/usr/src/contrib/llvm-project/clang/include -I/usr/src/lib/clang/include -I/usr/src/contrib/llvm-project/llvm/include -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -DHAVE_VCS_VERSION_INC -DLLVM_DEFAULT_TARGET_TRIPLE=\"x86_64-unknown-freebsd13.0\" -DLLVM_HOST_TRIPLE=\"x86_64-unknown-freebsd13.0\" -DDEFAULT_SYSROOT=\"/usr/obj/usr/src/amd64.amd64/tmp\" -DLLVM_TARGET_ENABLE_X86 -DLLVM_NATIVE_ASMPARSER=LLVMInitializeX86AsmParser -DLLVM_NATIVE_ASMPRINTER=LLVMInitializeX86AsmPrinter -DLLVM_NATIVE_DISASSEMBLER=LLVMInitializeX86Disassembler -DLLVM_NATIVE_TARGET=LLVMInitializeX86Target -DLLVM_NATIVE_TARGETINFO=LLVMInitializeX86TargetInfo -DLLVM_NATIVE_TARGETMC=LLVMInitializeX86TargetMC -ffunction-sections -fdata-sections -MD -MF.depend.Basic_SanitizerSpecialCaseList.o -MTBasic/SanitizerSpecialCaseList.o -Wno-format-zero-length -Qunused-arguments -I/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/include  -fno-exceptions -fno-rtti -std=c++14 -stdlib=libc++ -Wno-c++11-extensions   -c /usr/src/contrib/llvm-project/clang/lib/Basic/SanitizerSpecialCaseList.cpp -o Basic/SanitizerSpecialCaseList.o
>  c++  -O2 -pipe -fno-common -I/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libclang -I/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libllvm -I/usr/src/contrib/llvm-project/clang/lib/Basic -I/usr/src/contrib/llvm-project/clang/lib/Driver -I/usr/src/contrib/llvm-project/clang/include -I/usr/src/lib/clang/include -I/usr/src/contrib/llvm-project/llvm/include -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -DHAVE_VCS_VERSION_INC -DLLVM_DEFAULT_TARGET_TRIPLE=\"x86_64-unknown-freebsd13.0\" -DLLVM_HOST_TRIPLE=\"x86_64-unknown-freebsd13.0\" -DDEFAULT_SYSROOT=\"/usr/obj/usr/src/amd64.amd64/tmp\" -DLLVM_TARGET_ENABLE_X86 -DLLVM_NATIVE_ASMPARSER=LLVMInitializeX86AsmParser -DLLVM_NATIVE_ASMPRINTER=LLVMInitializeX86AsmPrinter -DLLVM_NATIVE_DISASSEMBLER=LLVMInitializeX86Disassembler -DLLVM_NATIVE_TARGET=LLVMInitializeX86Target -DLLVM_NATIVE_TARGETINFO=LLVMInitializeX86TargetInfo -DLLVM_NATIVE_TARGETMC=LLVMInitializeX86TargetMC -ffunction-sections -fdata-sections -MD -MF.depend.Basic_Sanitizers.o -MTBasic/Sanitizers.o -Wno-format-zero-length -Qunused-arguments -I/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/include  -fno-exceptions -fno-rtti -std=c++14 -stdlib=libc++ -Wno-c++11-extensions   -c /usr/src/contrib/llvm-project/clang/lib/Basic/Sanitizers.cpp -o Basic/Sanitizers.o
>  c++  -O2 -pipe -fno-common -I/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libclang -I/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libllvm -I/usr/src/contrib/llvm-project/clang/lib/Basic -I/usr/src/contrib/llvm-project/clang/lib/Driver -I/usr/src/contrib/llvm-project/clang/include -I/usr/src/lib/clang/include -I/usr/src/contrib/llvm-project/llvm/include -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -DHAVE_VCS_VERSION_INC -DLLVM_DEFAULT_TARGET_TRIPLE=\"x86_64-unknown-freebsd13.0\" -DLLVM_HOST_TRIPLE=\"x86_64-unknown-freebsd13.0\" -DDEFAULT_SYSROOT=\"/usr/obj/usr/src/amd64.amd64/tmp\" -DLLVM_TARGET_ENABLE_X86 -DLLVM_NATIVE_ASMPARSER=LLVMInitializeX86AsmParser -DLLVM_NATIVE_ASMPRINTER=LLVMInitializeX86AsmPrinter -DLLVM_NATIVE_DISASSEMBLER=LLVMInitializeX86Disassembler -DLLVM_NATIVE_TARGET=LLVMInitializeX86Target -DLLVM_NATIVE_TARGETINFO=LLVMInitializeX86TargetInfo -DLLVM_NATIVE_TARGETMC=LLVMInitializeX86TargetMC -ffunction-sections -fdata-sections -MD -MF.depend.Basic_SourceLocation.o -MTBasic/SourceLocation.o -Wno-format-zero-length -Qunused-arguments -I/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/include  -fno-exceptions -fno-rtti -std=c++14 -stdlib=libc++ -Wno-c++11-extensions   -c /usr/src/contrib/llvm-project/clang/lib/Basic/SourceLocation.cpp -o Basic/SourceLocation.o
>  c++  -O2 -pipe -fno-common -I/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libclang -I/usr/obj/usr/src/amd64.amd64/tmp/obj-tools/lib/clang/libllvm -I/usr/src/contrib/llvm-project/clang/lib/Basic -I/usr/src/contrib/llvm-project/clang/lib/Driver -I/usr/src/contrib/llvm-project/clang/include -I/usr/src/lib/clang/include -I/usr/src/contrib/llvm-project/llvm/include -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -DHAVE_VCS_VERSION_INC -DLLVM_DEFAULT_TARGET_TRIPLE=\"x86_64-unknown-freebsd13.0\" -DLLVM_HOST_TRIPLE=\"x86_64-unknown-freebsd13.0\" -DDEFAULT_SYSROOT=\"/usr/obj/usr/src/amd64.amd64/tmp\" -DLLVM_TARGET_ENABLE_X86 -DLLVM_NATIVE_ASMPARSER=LLVMInitializeX86AsmParser -DLLVM_NATIVE_ASMPRINTER=LLVMInitializeX86AsmPrinter -DLLVM_NATIVE_DISASSEMBLER=LLVMInitializeX86Disassembler -DLLVM_NATIVE_TARGET=LLVMInitializeX86Target -DLLVM_NATIVE_TARGETINFO=LLVMInitializeX86TargetInfo -DLLVM_NATIVE_TARGETMC=LLVMInitializeX86TargetMC -ffunction-sections -fdata-sections -MD -MF.depend.Basic_SourceManager.o -MTBasic/SourceManager.o -Wno-format-zero-length -Qunused-arguments -I/usr/obj/usr/src/amd64.amd64/tmp/legacy/usr/include  -fno-exceptions -fno-rtti -std=c++14 -stdlib=libc++ -Wno-c++11-extensions   -c /usr/src/contrib/llvm-project/clang/lib/Basic/SourceManager.cpp -o Basic/SourceManager.o
>  /usr/src/contrib/llvm-project/clang/lib/Basic/SourceManager.cpp:1228:10: fatal error: 'emmintrin.h' file not found
>  #include <emmintrin.h>
>           ^~~~~~~~~~~~~
>  1 error generated.
>  *** Error code 1

	Have I screwed something up?  Nothing in UPDATING seems
appropriate.
	Help, please?


			Respectfully,


				Robert Huff