End of the make file simplifications.

src/interfaces/libpgtcl/Makefile

src/interfaces/libpq++/Makefile

src/interfaces/libpq++/examples/Makefile

src/interfaces/libpq++/libpq++.H

src/interfaces/libpq++/pglobject.cc

src/interfaces/libpq/Makefile

src/test/Makefile

src/test/bench/Makefile

src/test/examples/Makefile

src/test/regress/Makefile

src/tools/mkldexport/Makefile

src/tutorial/C-code/Makefile

src/tutorial/Makefile