Hi, like with bug #1014400 i see problems between the purpose of .symbols and the expectations of upstream code. Upstream code of libisoburn knows what it demands as minimum version. Any contrary decision by a Debian packaging program can only lead to intentional failure at compile time or at run time.
See also: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1014400#10 (Additionally to the scruples expressed there, it comes to me that the goal of .symbols does not care for important bug fixes. A symbol may exist longer than the version where such bugs are fixed.) Have a nice day :) Thomas
