[LLVMdev] llvm library linking issues

[Duncan Sands]

Hi Eugene,

> The output of `llvm-config --cppflags --ldflags --libs core support` and
> `llvm-config --cppflags --ldflags --libs core` is the same. I've also tried specifying -lLLVMSupport manually. Same result.

maybe then llvm-config comes from a different version or build of LLVM than
the one providing the LLVM header files you are building your code against.

Ciao, Duncan.

>
> --Eugene
>
> ----- Original Message -----
> Hi Eugene, >I do this, and I've tried a few variations of on it: >clang++ `llvm-config --cppflags --ldflags --libs core`  -o clangtest clangtest.cpp  the missing routine is defined in the support library, not the core library, try
> --libs core support Ciao, Duncan. >>I've also tried removing the library and the include file in turn, which in both cases succefully made the compiler not find the files needed. >>----- Original Message ----- >Hi Eugene, >>On 17/07/12 03:46, Eugene wrote: >>I'm trying to make use of the llvm compiler libraries, but I can't get them to link to my program correctly. >>>>#include <llvm/Constants.h> >>#include <llvm/DerivedTypes.h> >>>>>>int main(){ >>>>llvm::APInt(1,0); >>>>return 0; >>} >>>>I get an error like: >>undefined reference to `llvm::APInt::initSlowCase(unsigned int, unsigned long long, bool) >>did you link with -lLLVMSupport (see the output of `llvm-config --libs >support`)?  What link command did you use? >>Ciao, Duncan. >>>>>(this function is called by the inline APInt constructor) >>>>The library seems to be found correctly; it doesn't give any other errors. Using nm I can see the mangled function initSlowCase exactly where I expect it to be.
>   I'm out of ideas of that could be wrong. >>>>I'm using kubuntu 12.04. Same error occurs with both clang++ and g++. LLVM libraries are 3.1 >>Any ideas on what might be the problem? >>>>>>_______________________________________________ >>LLVM Developers mailing list >>LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu >>http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev >>>>>_______________________________________________ >LLVM Developers mailing list >LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu >http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev >>>_______________________________________________ >LLVM Developers mailing list >LLVMdev at cs.uiuc.edu http://llvm.cs.uiuc.edu >http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev >
>
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