Revert the last commit and use the (new) FLEX_REQD directive in order
to build gstreamer on platforms with older versions of flex.
Thanks @wiz, @obache
gstreamer1 requires a version of flex that is 2.5.31 or greater.
DragonFly does not have a flex this new, so force gstreamer to use
the flex found at devel/flex (version 2.5.36 currently) rather than
the platform's native flex.
GStreamer is a library that allows the construction of graphs of
media-handling components, ranging from simple Ogg/Vorbis playback to
complex audio (mixing) and video (non-linear editing) processing.
Applications can take advantage of advances in codec and filter technology
transparently. Developers can add new codecs and filters by writing a
simple plugin with a clean, generic interface.
GStreamer is released under the LGPL.
This packages tracks 1.x release.
