Thank you Gustavo and Marco for your quick response. Tried building Gecode with clang and -stdlib=libc++, but failed. I'm now linking my project with old c++ standard library, but that's causing me some troubles because I used some of the new features.
I just wondering if I made all the necessary changes to build Gecode with Clang. All I did was: export CXX=clang export CXXFLAGS=-stdlib=libc++ and then configure and make Anything else I should have done? 10x, Ronen 2013/7/11 Marco Correia <marco.v.corr...@gmail.com> > On Jul 10, 2013, at 23:19 , Ronen Shouker <rshou...@gmail.com> wrote: > > > > >> [snip] > >> ... I have one error during link: > >> > >> Undefined symbol 'Gecode::branch( > >> [snip] > >> std::__1::basic_ostream<char,std::__1::char_traits<char> >& > >> [snip] > >> > > > > After using nm to inspect the dylib: > > it seems that those __1:: that for some reason appear in the error > message > > (and therefore where produced by the compiler) are not in the gecode > dylib. > > > > Any Clues? > > (Disclaimer: I am not a Gecode expert) > > I suspect the problem is the c++ standard library. With clang (the new c++ > compiler shipped with mac os) comes a new c++ standard lib, which you can > link to by specifying -stdlib=libc++ when compiling/linking you code. To > link with the old c++ standard lib you compile with -stdlib=libstdc++ > instead. > > I suspect you compiled gecode with one of them are now are trying to > compile your example with the other one.
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