Header only chrono requires library

[DanSearles@…]

Documentation for including chrono.hpp: http://www.boost.org/doc/libs/1_50_0/doc/html/chrono/users_guide.html

implies that chrono can be configured as a 'header only library', by defining BOOST_CHRONO_HEADER_ONLY, but on VC9, I get a link error: cannot open file 'libboost_system-vc90-mt-gd-1_50.lib

Adding a define for BOOST_ALL_NO_LIB results in two undefined objects: class boost::system::error_category const & cdecl boost::system::generic_category(void) class boost::system::error_category const & cdecl boost::system::system_category(void)

[DanSearles@…]

Added a define for less documented BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING, but still get the generic_category and system_category undefines

[viboes]

Replying to DanSearles@…:

Added a define for less documented BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING, but still get the generic_category and system_category undefines

The macro is documented here http://www.boost.org/doc/libs/1_50_0/doc/html/chrono/reference.html#chrono.reference.cpp0x.chrono_chrono_hpp.conf.

Please could you tell me which .cpp file has the undefined symbols?

[viboes]

There is another possibility, please could you try BOOST_ERROR_CODE_HEADER_ONLY?

[DanSearles@…]

I tried adding #define BOOST_ERROR_CODE_HEADER_ONLY and was able to compile and build without linker errors. The 'Fix' appears to be to just mention in the docs these needed defines, for the chrono header only version.

[DanSearles@…]

So the final set that worked was: #define BOOST_ERROR_CODE_HEADER_ONLY #define BOOST_ALL_NO_LIB #define BOOST_CHRONO_HEADER_ONLY #define BOOST_CHRONO_DONT_PROVIDE_HYBRID_ERROR_HANDLING

[viboes]

Committed in trunk revision 80043.

[viboes]

Committed revision 80044.