b98ae36d32
Somehow Dwarf Fortress suddenly started failing to use our libpng (or zlib). I tried all possible combinations (supplying them via LD_LIBRARY_PATH in the script) but it just won't work. This solution was found in the Archlinux bug tracker: It just symlinks all problematic .png files to their .bmp counterparts. It's ugly and *sadly* breaks tileset support (unless you convert them to bmp) but I think it's acceptable, as the whole expression is pretty problematic in terms of purity. Let's hope the next release of Dwarf Fortress will be easier to support. (fixes #710)