There appear to be some git merge droppings in modules/pv/pv_trans.h that prevent successful compilation:
CC (gcc) [M pv.so] pv.o In file included from pv.c:40: pv_trans.h:38: error: expected identifier before ‘<<’ token In file included from pv.c:40: pv_trans.h:44:9: error: invalid suffix "f441f..." on integer constant make[1]: *** [pv.o] Error 1 make: *** [install-modules] Error 1