configure.ac: add GSTREAMER_CHECK_VERSION macro
configure.ac: add GSTREAMER_CHECK_VERSION macro

darcs-hash:20071029222529-21862-1a6d5ac648591a110f7b1ebe188b76902c7917c6.gz

thiagoarrais/gtk2hs,thiagoarrais/gtk2hs,thiagoarrais/gtk2hs