Two directories need to have "make clean" issued after "svn up" if
you're reusing your build directory: "mblock/src/lib" and "usrp/host/
lib/inband". These directories contain built sources which are not
updated by SVN and thus not rebuilt. Those built sources include
mblock header files which have moved and thus "make" will error out
trying to compile them (the built sources, not the header files). - MLD