Re: [Boost-users] linker error when using from_simple_string()

Subject: Re: [Boost-users] linker error when using from_simple_string()
From: Phil Huffman (56phil_at_[hidden])
Date: 2013-03-18 06:44:07

That solved the problem. Thanks.

On Sun, Mar 17, 2013 at 3:18 PM, Igor R <boost.lists_at_[hidden]> wrote:

> >> >> > This line of code:
> >> >> > date birthday(from_simple_string(s));
> >> >> >
> >> >> > causes this error:
> >> >> > Undefined symbols for architecture x86_64:
> >> >> >   "boost::gregorian::greg_month::get_month_map_ptr()", referenced
> >> >> > from:
> >> >> >       unsigned short
> >> >> >
> >> >> >
> >> >> >
> boost::date_time::month_str_to_ushort<boost::gregorian::greg_month>(std::string
> >> >> > const&) in boost2-aLwtLt.o
> >> >> > ld: symbol(s) not found for architecture x86_64
> >> >>
> >> >>
> >> >> Can you show the linker line? Do you link Boost.DateTime library?
> >>
> >> > Here is the linker line:
> >> >  "/usr/bin/ld" -demangle -dynamic -arch x86_64 -macosx_version_min
> >> > 10.8.0
> >> > -o boost2
> >> > /var/folders/hj/zc5pjqjd6gxgq2sw77xghkyh0000gn/T/boost2-JeVfpE.o
> >> > -lstdc++ -lSystem
> /usr/bin/../lib/clang/4.1/lib/darwin/libclang_rt.osx.a
> >> >
> >> > No, I do not explicitly link to to Boost.DateTime.
> >> > date_from_iso_string()
> >> > works fine without linking, so I do not think it is required.
> >>
> >>
> >> Please, read the manual:
> >>
> >>
> http://www.boost.org/doc/libs/1_53_0/doc/html/date_time/details.html#date_time.buildinfo
> >
> > I read the the page. Unfortunately, I saw nothing that was helpful. I am
> new
> > to boost, so I perhaps missed it.
> >
> > I did a full install at the time I put boost on my MacBook. Therefore, I
> > expect the libs are there. What am I missing?
>
> You should link this library. Add -lboost_date_time to the linker options.
> _______________________________________________
> Boost-users mailing list
> Boost-users_at_[hidden]
> http://lists.boost.org/mailman/listinfo.cgi/boost-users
>