[LLVMdev] Problem linking with llvm on mac os 10.6

[Romain Pechayre]

Thank you for the tip,

I was indeed wondering why target default value was x86.

romain


On Tue, Mar 16, 2010 at 1:33 AM, Daniel Dunbar <daniel at zuster.org> wrote:

> LLVM 2.6 hadn't updated configure, and would build as 32-bit by
> default. The easy fix is to always force the desired triple when
> configuring, I generally use:
>  configure --{build,host,target}=x86_64-apple-darwin10
>
>  - Daniel
>
> On Mon, Mar 15, 2010 at 4:22 AM, Garrison Venn <gvenn.cfe.dev at gmail.com>
> wrote:
> > I'm not sure why you are getting mixed architecture (bit size) results on
> > 10.6.x but you can also build the examples
> > as part of the llvm build.
> > Set the environmental var BUILD_EXAMPLES to 1before executing the llvm
> make.
> > Garrison
> > On Mar 14, 2010, at 11:00, 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.
> > By the way, I get the same errors (apart from the first ones) if I build
> > like this (omitting libraries flags):
> > g++ -g -O3 toy.cpp -I/usr/local/include  -D_DEBUG -D_GNU_SOURCE
> > -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -o toy
> > There must be something wrong with the libraries and I assume I have not
> > compiled them the right way. Please let me know if you have any ideas.
> > Regards,
> > romain
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