Hopefully the unspecified forward declaration of capture_options_t in main.h is portable, but buildbot will tell me. This way I need the internals of that struct only at the places I really use it.
svn path=/trunk/; revision=12853
to make it compile on UN*X. Get rid of some #includes that don't appear
to be needed, at least on OS X 10.3 (they might be needed on other
platforms).
svn path=/trunk/; revision=12453