* apt-pkg/contrib/fileutl.{h,cc}:
- Add support for transparent reading of gzipped files.
- Link against zlib (in apt-pkg/makefile) and add zlib build dependency.
+ - [ABI BREAK] This introduces a new protected member of FileFD and changes
+ the behaviour of FileFd for reading gzipped files.
* apt-pkg/deb/debindexfile.cc:
- If we do not find uncompressed package/source/translation indexes, look
for gzip compressed ones.