[LLVMdev] Problem linking with llvm on mac os 10.6

[Chris Lattner]

On Mar 14, 2010, at 12:02 PM, Romain Pechayre wrote:

> Indeed it works. Thanks ! 
> Is LLVM built with m32 by default ? 

Looks like it on your system,

-Chris

> 
> Cheers,
> 
> Romain 
> On Mar 14, 2010, at 5:42 PM, Chris Lattner wrote:
> 
>> 
>> 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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