Undefined symbols for architecture x86_64 on MAC OS

[patrickkh7788]

I just want build ldc2 , not every thing.

make ldc2 -J4 VERBOSE=1

Undefined symbols for architecture x86_64:
  "pruneCache(char const*, unsigned long, unsigned int, unsigned int, unsigned long, unsigned int)", referenced from:
      cache::pruneCache() in libldc.a(cache.cpp.o)
  "createIntegerExp(Loc const&, unsigned long, Type*)", referenced from:
      AsmParserx8632::AsmProcessor::parsePrimaryExp() in libldc.a(asmstmt.cpp.o)
      AsmParserx8632::AsmProcessor::newIntExp(int) in libldc.a(asmstmt.cpp.o)
      AsmParserx8664::AsmProcessor::parsePrimaryExp() in libldc.a(asmstmt.cpp.o)
      AsmParserx8664::AsmProcessor::newIntExp(long long) in libldc.a(asmstmt.cpp.o)
      Target::paintAsType(Expression*, Type*) in libldc.a(target.cpp.o)
  "createIntegerExp(unsigned long)", referenced from:
      AsmParserx8632::AsmProcessor::newRegExp(int) in libldc.a(asmstmt.cpp.o)
      AsmParserx8664::AsmProcessor::newRegExp(int) in libldc.a(asmstmt.cpp.o)
  "Identifier::idPool(char const*, unsigned long)", referenced from:
      AsmParserx8632::AsmProcessor::AsmProcessor(Scope*, AsmStatement*) in libldc.a(asmstmt.cpp.o)
      AsmParserx8664::AsmProcessor::AsmProcessor(Scope*, AsmStatement*) in libldc.a(asmstmt.cpp.o)
      ArmTargetABI::vaListType() in libldc.a(abi-arm.cpp.o)
      X86_64TargetABI::vaListType() in libldc.a(abi-x86-64.cpp.o)
      AArch64TargetABI::vaListType() in libldc.a(abi-aarch64.cpp.o)
  "TypeFunction::create(Array<Parameter*>*, Type*, int, LINK, unsigned long)", referenced from:
      (anonymous namespace)::LazyFunctionDeclarer::declare(Loc const&) in libldc.a(runtime.cpp.o)
      rt_dg1() in libldc.a(runtime.cpp.o)
      rt_dg2() in libldc.a(runtime.cpp.o)
      DtoFunctionType(Type*, IrFuncTy&, Type*, Type*, bool, bool, bool, bool) in libldc.a(functions.cpp.o)
  "FuncDeclaration::genCfunc(Array<Parameter*>*, Type*, char const*, unsigned long)", referenced from:
      TryCatchScope::emitCatchBodies(IRState&, llvm::Value*) in libldc.a(trycatchfinally.cpp.o)
  "Mem::xmalloc(unsigned long)", referenced from:
      Array<Expression*>::reserve(unsigned long) in libldc.a(asmstmt.cpp.o)
      StringExp::toStringz() const in libldc.a(pragma.cpp.o)
      Array<char const*>::reserve(unsigned long) in libldc.a(main.cpp.o)
      CodegenVisitor::visit(PragmaDeclaration*) in libldc.a(declarations.cpp.o)
      Array<char const*>::reserve(unsigned long) in libldc.a(declarations.cpp.o)
      Array<unsigned long>::reserve(unsigned long) in libldc.a(modules.cpp.o)
      StringExp::toStringz() const in libldc.a(uda.cpp.o)
      ...
  "Mem::xrealloc(void*, unsigned long)", referenced from:
      Array<Expression*>::reserve(unsigned long) in libldc.a(asmstmt.cpp.o)
      Array<char const*>::reserve(unsigned long) in libldc.a(main.cpp.o)
      Array<char const*>::reserve(unsigned long) in libldc.a(declarations.cpp.o)
      Array<unsigned long>::reserve(unsigned long) in libldc.a(modules.cpp.o)
      Array<Parameter*>::reserve(unsigned long) in libldc.a(runtime.cpp.o)
      Array<char const*>::reserve(unsigned long) in libldc.a(cl_helpers.cpp.o)
      Array<VarDeclaration*>::reserve(unsigned long) in libldc.a(abi.cpp.o)
      ...
  "OutBuffer::write(void const*, unsigned long)", referenced from:
      IrAggr::getClassInfoSymbol() in libldc.a(irclass.cpp.o)
      IrAggr::defineInterfaceVtbl(BaseClass*, bool, unsigned long) in libldc.a(irclass.cpp.o)
  "Parameter::create(unsigned long, Type*, Identifier*, Expression*)", referenced from:
      (anonymous namespace)::LazyFunctionDeclarer::declare(Loc const&) in libldc.a(runtime.cpp.o)
      rt_dg1() in libldc.a(runtime.cpp.o)
      rt_dg2() in libldc.a(runtime.cpp.o)
  "Parameter::getNth(Array<Parameter*>*, unsigned long, unsigned long*)", referenced from:
      addExplicitArguments(std::__1::vector<llvm::Value*, std::__1::allocator<llvm::Value*> >&, AttrSet&, IrFuncTy&, llvm::FunctionType*, Array<Expression*>&, Array<Parameter*>*) in libldc.a(tocall.cpp.o)
      DtoFunctionType(Type*, IrFuncTy&, Type*, Type*, bool, bool, bool, bool) in libldc.a(functions.cpp.o)
  "StringExp::charAt(unsigned long) const", referenced from:
      buildStringLiteralConstant(StringExp*, bool) in libldc.a(llvmhelpers.cpp.o)
ld: symbol(s) not found for architecture x86_64

[kinke]

I take it you're using DMD >= 2.079 as host compiler?