From another BR I've found out a number of header files, mainly in redland, that may not have the proper includes. Can we patch them up while someone gets those changes upstream (if valid and not already reported)? I'm not opening separate BRs for this, since this is ultimately just one group of related software/libraries/packages.

These are also what cause build failures if the raptor1 package is installed alongside raptor. The affected files (see attached patches for the changes):

== redland ==
librdf.h
rdf_log.h
rdf_init.h
rdf_serializer.h

== rasqal ==
rasqal/rasqal.h

== liblrdf ==
lrdf.h

Reproducible by testing with a blank cc file including the 6 headers (attached):

$ g++ test.cc