The symbol gsl_multimin_fdfminimizer_conjugate_fr
is not defined in cdtm_ext.so
, it is referenced in cdtm_ext.so
but undefined, that is what U
stands for. You need to link to the library in your case gsl
to define that symbol.
See http://www.boost.org/doc/libs/1_46_1/doc/html/bbv2/tutorial.html#bbv2.tutorial.prebuilt for how to link libraries with bjam.