Hello,
the inlude files have the Tom R. path:
http://gnuradio.org/doc/doxygen/classgr_1_1filter_1_1rational__resampler__base__fff.html
#include <
/home/trondeau/code/gnuradio/build/master/gr-filter/include/gnuradio/filter/rational_resampler_base_fff.h
http://gnuradio.org/doc/doxygen/rational__resampler__base__fff_8h_source.html