Overall:

* VPATH builds fail, starting with usrp.

* Change a Makefile.am in a subdir, must manually go back up and re-run
configure. Otherwise it gets run somehow incorrectly.

* Fix overuse of LIBS vs. LIBADD, LDADD, or LDFLAGS, allong with xxx_

* Make dist and distcheck have not been tested.

dtools:

* No checking or testing done in this directory.

gnuradio-core/doc:

* Make hasn't been tested yet in this directory.

gnuradio-core/src/gen_interpolator_taps:

* Make hasn't been tested yet in this directory.

gnuradio-core/src/lib/filter:

* README is stale.

gnuradio-core/src/lib/general:

* README is stale.

gnuradio-core/src/lib/tests:

* Cleanup libgnuradio-core variable, try to refer to something in
Makefile.common 

gnuradio-core/src/lib/utils:

* Not all *.m files are referenced in Makefile.am for distribution. Is
this correct?

gnuradio-examples:

* Some directories don't have Makefile.am's

gnuradio-examples/python/gmsk2:

* Not all examples are in Makefile.am

usrp/doc:

* Make not tested in this directory

usrp/firmware/include:

* Refactor include directory specification in Makefile.am into 
Makefile.common for use elsewhere

usrp/firmware/lib:

* Use refactored include directory specification from Makefile.common

gr-usrp/src:

* Use refactored gnuradio.i specification from Makefile.common

* USRP_LIBS and USRP_INCLUDES are hardcoded.  These used to come out of 
PKGCONFIG in the old system.

* Use common run_tests.in