Soon i tried to build a boost::test example in MinGW32, which required a -lboost_unit_test_framework-mgw46-mt-1_47 link option.
I tried setting it in Build methods - Release link options, but had no luck.
You are rather excpected to add it to in package organizer as Library (it has logic: packages are portable across machines, so information about required libraries should be stored with them. Build method contains information about particular machine).