GStreamer use a *large* array of tools and libraries, most of which are optional. We have attempted to make sure that any code that depends on optional libraries doesn't get built unless you have those libraries. If you find this not to be the case, please, let us know by filing a bug report at http://sourceforge.net/bugs/?group_id=1936. Required libraries: =================== glib v1.2.0 or better gtk+ v1.2.0 or better libxml Optional libraries: =================== gdk_pixbuf (for videosink) libghttp (for httpsrc) libgnomeui (for gstplay, gsteditor, autoplug example, several tests) libglade (for gstplay, gsteditor) An extra set of tools is required if you wish to build GStreamer out of CVS (using autogen.sh): autoconf automake v1.4 or better libtool v1.3.5 or better