[LLVMdev] How to write Clang plugin Makefile with binary download LLVM and Clang?

[朱军]

Hi! I'am new to LLVM and Clang. I just followed this [tutorial](https://kevinaboos.wordpress.com/2013/07/29/clang-tutorial-part-iii-plugin-example/) and tried to build a Clang plugin on my PC. 
The tutorial's makefile is simple like this:


    CLANG_LEVEL := ../..
    LIBRARYNAME = PluginExample
 
    SOURCES := PluginExample.cpp
 
    LINK_LIBS_IN_SHARED = 0
    SHARED_LIBRARY = 1
 
    include $(CLANG_LEVEL)/Makefile


However, this tutorial's LLVM and Clang is built by compiling the source, while I get LLVM(and Clang) binary online directly(with apt-get install on Ubuntu). It's installed in /usr/lib. So, I'm confused where my CLANG_LEVEL is, what does it exactly mean?


=========================================================================
I have tried another way, but it seems to be wrong and I have no idea what did I miss. So, the makefile is like this:


    CXX := g++
    LLVM_DIR := /usr/lib/llvm-3.5
    LLVMCONFIG := /usr/lib/llvm-3.5/bin/llvm-config
    PLUGIN = ParameterNameChecker
    
    CXXFLAGS += `${LLVM_DIR}/bin/llvm-config --cxxflags`
    LDFLAGS += `${LLVM_DIR}/bin/llvm-config --ldflags`
    LLVMLIBS = `${LLVM_DIR}/bin/llvm-config --libs`
    
    SOURCES = PluginExample.cpp
    OBJECTS = $(SOURCES:.cpp=.o)
    EXES = $(OBJECTS:.o=)
    
    CLANGLIBS = \
    -lclangTooling\
    -lclangFrontendTool\
    -lclangFrontend\
    -lclangDriver\
    -lclangSerialization\
    -lclangCodeGen\
    -lclangParse\
    -lclangSema\
    -lclangStaticAnalyzerFrontend\
    -lclangStaticAnalyzerCheckers\
    -lclangStaticAnalyzerCore\
    -lclangAnalysis\
    -lclangARCMigrate\
    -lclangRewriteFrontend\
    -lclangRewriteCore\
    -lclangEdit\
    -lclangAST\
    -lclangLex\
    -lclangBasic\
    $(shell $(LLVMCONFIG) --libs)\
                    -lcurses
    
    $(PLUGIN).so: $(PLUGIN).o
    $(CXX) $(LDFLAGS) -o $(PLUGIN).so $(PLUGIN).o
    
    $(PLUGIN).o: $(PLUGIN).cpp
    $(CXX) $(CXXFLAGS) -c $(PLUGIN).cpp -o $(PLUGIN).o
    
    clean:
    -rm -fv $(PLUGIN).o $(PLUGIN).so


The compiler always complains sort of things like `undefined reference to 'clang::PluginASTAction::anchor()'`.


I'd like to provide more information if necessary. 
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