Original commit message from CVS:
libgst-interfaces -> libgstinterfaces, plus we're not called libgstplay
Requires: gstreamer >= @VERSION@
Version: @VERSION@
-Libs: ${pcfiledir}/../gst-libs/gst/libgst-interfaces-@GST_MAJORMINOR@.la
+Libs: ${pcfiledir}/../gst-libs/gst/libgstinterfaces-@GST_MAJORMINOR@.la
Cflags: -I${pcfiledir}/../gst-libs
Requires: gstreamer-@GST_MAJORMINOR@
Version: @VERSION@
-Libs: -L${libdir} -lgstplay-@GST_MAJORMINOR@
+Libs: -L${libdir} -lgstinterfaces-@GST_MAJORMINOR@
Cflags: -I${includedir}