binutils ld 2-32, defined in discarded section error

[pierre willard]

Hello,
I am using ld + /DISCARD/ script to remove some sections from a big object
file, and I get this kind of error:

`.text._ZN5boost16exception_detail12refcount_ptrINS0_20error_info_containerEE7add_refEv.isra.22'
referenced in section
`.text._ZN5boost16exception_detail19error_info_injectorINS_17bad_function_callEEC2ERKS3_[_ZN5boost16exception_detail19error_info_injectorINS_17bad_function_callEEC5ERKS3_]'
of myLib.ooo: defined in discarded section
`.text._ZN5boost16exception_detail12refcount_ptrINS0_20error_info_containerEE7add_refEv.isra.22'
of myLib.ooo

It is correct that  the section where this symbol is defined is being
discarded.
But the weird thing is that the section where this symbol is referenced is
also being discarded, so it seems ld should not be complaining.
is this correct?
regards
Pierre