Original commit message from CVS:
* ext/libpng/gstpngenc.c: (gst_pngenc_chain):
* gst/avi/gstavidemux.c: (gst_avi_demux_invert):
* gst/rtp/gstrtpmp4vdepay.c: (gst_rtp_mp4v_depay_setcaps):
* gst/rtsp/sdpmessage.h:
* gst/udp/gstdynudpsink.c: (gst_dynudpsink_render):
* gst/udp/gstmultiudpsink.c: (gst_multiudpsink_get_stats):
C89 fixes: declare variables at the beginning of a block and
make gcc-2.9x happy (#328264; patch by: Jens Granseuer
<jensgr at gmx dot net>).