[cfe-users] Compiline LLVM/Clang - errors in building shared object library

Nick Lewycky nlewycky at google.com
Sat Jul 20 12:24:48 PDT 2013

It looks like your link is not including the C++ ABI library (for instance
you may be linking by running gcc/clang instead of g++/clang++).
__cxa_guard_acquire et al are defined by the Itanium C++ ABI and shipped as
part of libsupc++ (commonly linked into libstdc++) from gcc or
libcxxabi.llvm.org from llvm.


On 20 July 2013 11:33, Sian Mountbatten <poenikatu at fastmail.co.uk> wrote:

>  Dear List
> I have uploaded the following files to http://www.poenikatu.co.uk/c++/:
>    config.log           -- the result of the configure command
>    llvm-clang-build.log -- the result of 'make'
> The build failed when a shared object library was being built: undefined
> references.
> Please would you check these files and, if possible, point me to what I
> need
> to do to get LLVM/Clang to compile.
> Sincerely
> --
> Sian Mountbatten
> Learning C++!!!
> I'm an FSF member
> Help us support software freedom! http://www.fsf.org/jf?referrer=10888
> _______________________________________________
> cfe-users mailing list
> cfe-users at cs.uiuc.edu
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