CODEWITHSUNDEEP
llvmclang
kunou
kunou

Reputation: 101

How should I link to LLVM libraries?

When I use command "gcc .. ../../*.so", there are the following error messages:

/usr/bin/ld: /home/demonwnb/build/src/*.so: error: undefined reference to 'llvm::raw_ostream::operator<<(void const*)'
/usr/bin/ld: /home/demonwnb/build/src/*.so: error: undefined reference to 'clang::DeclarationName::printName(llvm::raw_ostream&) const'

I think that I do not link "llvm library" correctly, so how should I do?

Upvotes: 4

Views: 7780

Answers (2)

Chethan Ravindranath
Chethan Ravindranath

Reputation: 2051

You need to tell your compiler where to load the libraries from, which can be done using the llvm-config command.

You could set the following symbols in your makefile

CC = g++

LLVM_MODULES = core jit native

CPPFLAGS = `llvm-config --cppflags $(LLVM_MODULES)`
LDFLAGS = `llvm-config --ldflags $(LLVM_MODULES)`
LIBS = `llvm-config --libs $(LLVM_MODULES)`

all:
    $(CC) *.o $(LDFLAGS) $(LIBS) -o MyOutput
main:
    find -name '*.cpp' -print0 | xargs -0 $(CC) -c $(CPPFLAGS)

Upvotes: 8

smparkes
smparkes

Reputation: 14053

Did you try using g++ to do the link? Those are C++ libraries and gcc doesn't pass the C++ libraries to the linker.

Upvotes: 1

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