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)
(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?
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 >
I do this, and I've tried a few variations of on it: clang++ `llvm-config --cppflags --ldflags --libs core` -o clangtest clangtest.cpp 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