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. Thanks, Phil On Sun, Mar 17, 2013 at 6:44 AM, Igor R 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_ushortboost::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? _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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? Thanks. On Sun, Mar 17, 2013 at 2:02 PM, Igor R 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_ushortboost::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_ti... _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

That solved the problem. Thanks. On Sun, Mar 17, 2013 at 3:18 PM, Igor R 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_ushortboost::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_ti...

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@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users