[LLVMdev] Link error when I compile the Toy(kaleidoscope) example (original) (raw)
Tim Northover t.p.northover at gmail.com
Tue Jul 7 12:10:30 PDT 2015
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undefined reference to `typeinfo for llvm::CmpInst' clang-3.7: error: linker command failed with exit code 1 (use -v to see invocation)
Looks like an error from the toy being built with -frtti but LLVM with -fno-rtti. Try this if you're not actually using the typeinfo:
$ clang++ -g -O3 toy.cpp llvm-config --cxxflags --ldflags --system-libs --libs core -fno-rtti -o toy
I've never been quite sure why that flag isn't part of "llvm-config --cxxflags".
Tim.
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