Can't compile on Slackware 13

Hi,

I'm trying to compile kino 1.3.4 with the Slackbuild 
http://slackbuilds.org/repository/13.0/multimedia/kino/

My ffmpeg output:
FFmpeg version 0.5.1, Copyright (c) 2000-2009 Fabrice Bellard, et al.
  configuration: --prefix=/usr --libdir=/usr/lib --shlibdir=/usr/lib --
mandir=/usr/man --disable-debug --enable-shared --disable-static --enable-
pthreads --enable-libtheora --enable-gpl --enable-version3 --enable-postproc 
--enable-swscale --enable-x11grab --enable-avfilter --enable-avfilter-lavf --
arch=i486 --enable-libopenjpeg --enable-libdc1394 --enable-libmp3lame --
enable-libfaac --enable-libfaad --enable-libxvid --enable-libx264 --enable-
libspeex --enable-libdirac --enable-libschroedinger --disable-vdpau --enable-
nonfree --enable-libamr-nb --enable-libamr-wb --enable-libopencore-amrnb --
enable-libopencore-amrwb --enable-runtime-cpudetect
  libavutil     49.15. 0 / 49.15. 0
  libavcodec    52.20. 1 / 52.20. 1
  libavformat   52.31. 0 / 52.31. 0
  libavdevice   52. 1. 0 / 52. 1. 0
  libavfilter    0. 4. 0 /  0. 4. 0
  libswscale     0. 7. 1 /  0. 7. 1
  libpostproc   51. 2. 0 / 51. 2. 0
  built on Apr 24 2010 11:25:02, gcc: 4.3.3


I'm getting an this error: 
frame.o: In function `Frame::ExtractYUV(void*)':
/tmp/SBo/kino-1.3.4/src/frame.cc:1136: undefined reference to `img_convert'
frame.o: In function `Frame::ExtractRGB(void*)':
/tmp/SBo/kino-1.3.4/src/frame.cc:1076: undefined reference to `img_convert'
frame.o: In function `Frame::EncodeRGB(unsigned char*)':
/tmp/SBo/kino-1.3.4/src/frame.cc:1458: undefined reference to `img_convert'
collect2: ld returned 1 exit status
make[3]: *** [kino] Error 1
make[3]: Leaving directory `/tmp/SBo/kino-1.3.4/src'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/tmp/SBo/kino-1.3.4/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/tmp/SBo/kino-1.3.4'
make: *** [all] Error 2

Do you know if and how I can fix?

Many thanks,

Pascal

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