LLVM Hello World from book w/ llvm-3.6

hello.cc

#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/LLVMContext.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/raw_ostream.h"

using namespace llvm;

static cl::opt<std::string> FileName(cl::Positional, cl::desc("Bitcode file"), cl::Required);

int main(int argc, char** argv) {
    cl::ParseCommandLineOptions(argc, argv, "LLVM hello world\n");
    LLVMContext context;

    ErrorOr<std::unique_ptr<MemoryBuffer>> mb =
    MemoryBuffer::getFile(FileName);
    if (std::error_code ec = mb.getError()) {
        errs() << ec.message();
        return -1;
    }
    ErrorOr<Module*> m = parseBitcodeFile(mb->get()->getMemBufferRef(), context);
    if (std::error_code ec = m.getError()) {
        errs() << "Error reading bitcode: " << ec.message() << "\n";
        return -1;
    }

    for (Module::const_iterator i = m.get()->getFunctionList().begin(), 
        e = m.get()->getFunctionList().end(); i != e; ++i) {
        if (!i->isDeclaration()) {
            outs() << i->getName() << " has " << i->size()
                   << " basic blocks.\n";
        }
    }

    return 0;
}

Makefile

LLVM_CONFIG?=llvm-config-3.6

ifndef VERBOSE
	QUIET:=@
endif

SRC_DIR?=$(PWD)
LDFLAGS+=$(shell $(LLVM_CONFIG) --ldflags)
COMMON_FLAGS=-Wall -Wextra
CXXFLAGS+=$(COMMON_FLAGS) $(shell $(LLVM_CONFIG) --cxxflags) -fno-rtti
CPPFLAGS+=$(shell $(LLVM_CONFIG) --cppflags) -I$(SRC_DIR)
LLVMLIBS=$(shell $(LLVM_CONFIG) --libs bitreader support)
SYSTEMLIBS=$(shell $(LLVM_CONFIG) --system-libs)

HELLO=helloworld
HELLO_OBJECTS=hello.o

default: $(HELLO)

%.o : $(SRC_DIR)/%.cpp
	@echo Compiling $*.cpp
	$(QUIET)$(CXX) -c $(CPPFLAGS) $(CXXFLAGS) $<
$(HELLO) : $(HELLO_OBJECTS)
	@echo Linking $@
	$(QUIET)$(CXX) -o $@ $(CXXFLAGS) $(LDFLAGS) $^ $(LLVMLIBS) $(SYSTEMLIBS)
clean::
	$(QUIET)rm -f $(HELLO) $(HELLO_OBJECTS)