* lib/krat_exp/krat_exp_bison.yy:
	    Adapt structure using PIMPL pattern.
	* include/vaucanson/algebra/implementation/series/krat_exp_parser.hxx: 
	    Remove bad include and replaced it by a forward declaration.
	* data/automata/b/Makefile.am:
	    Fix CPPFLAGS error introduced in patch 1976.
	* data/automata/tdc/Makefile.am:
	    Fix CPPFLAGS error introduced in patch 1976.
	* data/automata/z/Makefile.am:
	    Fix CPPFLAGS error introduced in patch 1976.
	* lib/generate_libvcsn.rb:
	    Fix CPPFLAGS error introduced in patch 1976.
	* src/tests/sanity/Makefile.am:
	    Fix CPPFLAGS error introduced in patch 1976.
	* src/tests/test-suites/test-suite.mk:
	    Fix CPPFLAGS error introduced in patch 1976.
	* src/tests/xml/Makefile.am:
	    Fix CPPFLAGS error introduced in patch 1976.
	* taf-kit/src/Makefile.am:
	    Fix CPPFLAGS error introduced in patch 1976.