libpng
on SourceForge
libpng15/older-releases/1.5.23/libpng-1.5.23.tar.xz
libpng15/older-releases/1.5.23/libpng-1.5.23.tar.gz.asc
libpng15/older-releases/1.5.23/libpng-1.5.23.tar.gz
libpng15/older-releases/1.5.23/libpng-1.5.23.tar.bz2.asc
libpng15/older-releases/1.5.23/libpng-1.5.23.tar.bz2
libpng15/older-releases/1.5.23/libpng-1.5.23-README.txt
libpng15/older-releases/1.5.23/libpng-1.5.23-LICENSE.txt