Arm.armv6 build world fails on amd64 10.1-RELEASE

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I am trying to cross compile armv6 on an amd64 host. I get a build world failure with a missing header file. Can someone please point me in the correct direction. 
Commands below. 
Regards /E
# svn checkout https://svn0.eu.FreeBSD.org/base/releng/10.1/ /usr/src/# svn up /usr/src# cd /usr/src# setenv TARGET arm # setenv TARGET_ARCH armv6 # make buildworld 
 ... removed for sake of brevity 
===> lib/clang/libclangbasic (depend)clang-tblgen -gen-clang-diags-defs -clang-component=Analysis  -I /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic -d DiagnosticAnalysisKinds.inc.d  -o DiagnosticAnalysisKinds.inc.h /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic/Diagnostic.tdclang-tblgen -gen-clang-diags-defs -clang-component=AST  -I /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic -d DiagnosticASTKinds.inc.d  -o DiagnosticASTKinds.inc.h /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic/Diagnostic.tdclang-tblgen -gen-clang-diags-defs -clang-component=Comment  -I /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic -d DiagnosticCommentKinds.inc.d  -o DiagnosticCommentKinds.inc.h /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic/Diagnostic.tdclang-tblgen -gen-clang-diags-defs -clang-component=Common  -I /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic -d DiagnosticCommonKinds.inc.d  -o DiagnosticCommonKinds.inc.h /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic/Diagnostic.tdclang-tblgen -gen-clang-diags-defs -clang-component=Driver  -I /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic -d DiagnosticDriverKinds.inc.d  -o DiagnosticDriverKinds.inc.h /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic/Diagnostic.tdclang-tblgen -gen-clang-diags-defs -clang-component=Frontend  -I /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic -d DiagnosticFrontendKinds.inc.d  -o DiagnosticFrontendKinds.inc.h /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic/Diagnostic.tdclang-tblgen -gen-clang-diag-groups  -I /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic -d DiagnosticGroups.inc.d  -o DiagnosticGroups.inc.h /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic/Diagnostic.tdclang-tblgen -gen-clang-diags-index-name  -I /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic -d DiagnosticIndexName.inc.d  -o DiagnosticIndexName.inc.h /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic/Diagnostic.tdclang-tblgen -gen-clang-diags-defs -clang-component=Lex  -I /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic -d DiagnosticLexKinds.inc.d  -o DiagnosticLexKinds.inc.h /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic/Diagnostic.tdclang-tblgen -gen-clang-diags-defs -clang-component=Parse  -I /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic -d DiagnosticParseKinds.inc.d  -o DiagnosticParseKinds.inc.h /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic/Diagnostic.tdclang-tblgen -gen-clang-diags-defs -clang-component=Sema  -I /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic -d DiagnosticSemaKinds.inc.d  -o DiagnosticSemaKinds.inc.h /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic/Diagnostic.tdclang-tblgen -gen-clang-diags-defs -clang-component=Serialization  -I /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic -d DiagnosticSerializationKinds.inc.d  -o DiagnosticSerializationKinds.inc.h /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic/Diagnostic.tdclang-tblgen -gen-arm-neon-sema  -d arm_neon.inc.d -o arm_neon.inc.h  /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include/clang/Basic/arm_neon.tdrm -f .dependmkdep -f .depend -a    -I/usr/src/lib/clang/libclangbasic/../../../contrib/llvm/include -I/usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/include -I/usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic -I. -I/usr/src/lib/clang/libclangbasic/../../../contrib/llvm/../../lib/clang/include -DLLVM_ON_UNIX -DLLVM_ON_FREEBSD -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -DNDEBUG -DLLVM_DEFAULT_TARGET_TRIPLE=\"armv6-gnueabi-freebsd10.1\" -DLLVM_HOST_TRIPLE=\"x86_64-unknown-freebsd10.1\" -DDEFAULT_SYSROOT=\"/usr/obj/arm.armv6/usr/src/tmp\" -I/usr/obj/arm.armv6/usr/src/tmp/legacy/usr/include        /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/Builtins.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/CharInfo.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/Diagnostic.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/DiagnosticIDs.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/FileManager.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/FileSystemStatCache.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/IdentifierTable.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/LangOptions.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/Module.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/ObjCRuntime.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/OpenMPKinds.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/OperatorPrecedence.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/SourceLocation.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/SourceManager.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/TargetInfo.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/Targets.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/TokenKinds.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/Version.cpp /usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/VersionTuple.cpp/usr/src/lib/clang/libclangbasic/../../../contrib/llvm/tools/clang/lib/Basic/SourceManager.cpp:1208:10: fatal error: 'emmintrin.h' file not found#include <emmintrin.h>         ^1 error generated.mkdep: compile failed*** Error code 1
Stop.make[4]: stopped in /usr/src/lib/clang/libclangbasic*** Error code 1
Stop.make[3]: stopped in /usr/src/lib/clang*** 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