Try the following call to configure Gecode: ./configure CC=clang CXX="clang++ -std=c++0x -stdlib=libc++"
I just checked, this compiles, links and runs fine for me (Mac OS 10.8). Cheers, Guido On 11/07/2013, at 9:26 AM, Ronen Shouker <rshou...@gmail.com> wrote: > 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. > > _______________________________________________ > Gecode users mailing list > users@gecode.org > https://www.gecode.org/mailman/listinfo/gecode-users
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