Support NOCONFIGURE variable, like Lib{XML2,XSLT}
Fix README and NEWS building - only for maintainer

Generate NEWS in $(srcdir) as automake won't look for it in $(builddir)

Remove not needed dist-hook target since README and NEWS are copied in
by the standard 'make dist' mechanism.
Fix some configure portability issues

Fixed a typo in the STRCASECMP conditional

Set CPPFLAGS whether or not the check for xsltSaveResultToString
succeeds, because AC_CHECK_HEADERS() depends on this and the result
of the header check should not depend on the result of the lib check.

Put -DRAPTOR_DEBUG and -DMAINTAINER_MODE into the config header
instead of CPPFLAGS. This prevents the flags from potentially being
passed to "make distcheck" builds, where they can cause trouble
(e.g. absence of git-version.h header)

Removed -g from maintainer CPPFLAGS since it does not belong there
and add to CFLAGS when --enable-debug is given.
Make all AC_ARG_WITH(blah) options handle --without-blah correctly

Now these forms can be used
  --with-foo      - enable feature
  --without-foo   - disable feature
  --with-foo=blah - enable and give a value
  --with-foo=     - (default action) enable and search for value
    (not given)   - (default action) enable and search for value
for --with-xml2-config, --with-xslt-config, --with-curl-config,
--with-icu-config and --with-libwww-config where 'no' can be used
to disable it and prevent automatic searches for the config script
in the PATH.
Quote testing $use_memory_signing
Fixes for out of tree builds of docs

Removed $(builddir)/ from target files since that is where they already are.

raptor2.h is a file generated by config.status, so it always lives
in $(builddir), not $(srcdir)

Replaced all instances of $(srcdir)/.. with $(top_srcdir)

Added "dist-hook-local: docs" so that the docs are generated during
a "make dist" if they haven't been generated already (otherwise
"make dist" fails when they can't be found)
Fixes for out of tree builds of library

Declare the turtle lex/yacc sources as BUILT_SOURCES, to take
advantage of Automake semantics for these

Remove LEX and YACC variables, as these are already handled automagically

Replaced all instances of $(srcdir)/.. with $(top_srcdir)

Added some guard logic to the turtle_lexer.c rule so that it doesn't
erroneously generate the target file

Added dummy turtle_lexer.h and turtle_parser.h rules to satisfy dependencies

Fixed a typo in the raptor_parse_test rule
TRANG in a variable and add docs ptr
Fixes for feeds testing for out of tree builds and portability

Do not use a variable containing a list of filenames both in a
target's dependencies and in the target body, at least outside of
maintainer mode.  Make on Solaris 8 has a funny idea of how to
implement VPATH; it modifies the value of the variable by prefixing
the srcdir path to each filename therein, and this breaks our rule
code.

Remove the use of $? as this is not well-supported outside of GNU
Make and the semantics of it are not needed or wanted.

Adjust check-validate-atom target to look for input fields in either
builddir or srcdir since some are generated and some are source.
Fixes for out of tree testing

Place the path to rapper in a variable RAPPER that can be overridden
by the user and ensure all instances have a $(EXEEXT) suffix.

Use $(RAPPER) instead of the path to same in target bodies

Place the path to rdfdiff in a variable RDFDIFF that can be overridden
by the user

Use $(RDFDIFF) instead of the path to same in target bodies
Improve building of rdfdiff

Declare rdfdiff as noinst_PROGRAMS instead of EXTRA_PROGRAMS, so
that it's always built (but not installed)

There is no need to mention rdfdiff in CLEANFILES, as Automake
already knows to clean it