[FFmpeg-devel] configure does not detect correct version of zlib

[robert hawkin]

hi. 
I have succesfully compiled ffmpeg-0.10 on a very old machine (kids bedroom for converting videos) 
initially compilation failed whilst linking  flashsv.o which needs deflateBound. the machine had zlib 1.1.1, and deflateBound was introduced in zlib 1.2.0
 updating zlib to 1.2.3 (which I had on the machine somewhere) sorted it.
it's a bit picky, but "configure" is supposed to know these things.

keep up the good work,

Robert.