2011/6/15 Fons Adriaensen :
Ok. Than likely it's 1.5.0 that introduces changes.
From the website:
"""The libpng 1.5.x series continues the evolution of the libpng API,
finally hiding the contents of the venerable and hoary png_struct and
png_info data structures inside private (i.e., non-installed) header
files. Instead of direct struct-access, applications should be using
the various png_get_xxx() and png_set_xxx() accessor functions, """
Maybe problems are related to that message.
Linux-audio-user mailing list