[LLVMdev] Problem linking with llvm on mac os 10.6

[Chris Lattner]

On Mar 14, 2010, at 8:00 AM, Romain Pechayre wrote:

> Hello all,
> 
> I am trying to build the kaleidoscope sample code on Mac os (10.6).
> What I have done to get llvm libraries :
> 
> 1) Downloaded llvm-2.6 source code
> 2) ./configure
> 3)make
> 4) make intall
> 
> Then I tried to build kaleidoscope as described in the tutorial:
> g++ -g -O3 toy.cpp `llvm-config --cppflags --ldflags --libs core` -o toy
> I get  typical link time errors (undefined symbols: ...)  as if the linked libraries were not found ( llvm-config seems to work fine)
> 
> The very first errors are the following:
> ld: warning: in /usr/local/lib/libLLVMCore.a, file was built for unsupported file format which is not the architecture being linked (x86_64)
> ld: warning: in /usr/local/lib/libLLVMSupport.a, file was built for unsupported file format which is not the architecture being linked (x86_64)
> ld: warning: in /usr/local/lib/libLLVMSystem.a, file was built for unsupported file format which is not the architecture being linked (x86_64)
> 
> Then I guess libraries are not linked and I get classical errors.

This sounds like LLVM is being built as x86-32, but toy.cpp is being built as x86-64.  Try compiling toy.cpp with "-m32".

-Chris
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