[LLVMdev] llvm library linking issues

[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.  
(This is resent so as to preserve the thread and newlines in the mailing list.)
--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?
>>
>>
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>
>
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