[Xapian-devel] Tarball size (was Re: [Xapian-commits] 7916:
olly at survex.com
Fri Sep 14 16:55:41 BST 2007
On Thu, Mar 08, 2007 at 05:29:55AM +0000, Olly Betts wrote:
> If I take a xapian-core snapshot (new or old) and just un-tar and re-tar
> the *same* files, it roughly halves in size. It doesn't look like "make
> dist" does anything stupid, and if I reproduce the options it seems to
> be using, I still get similar reductions in size.
Replying to an old message, but I've just found the explanation - by
default automake generates rules to build tar-v7 format archives. If
you use tar-ustar instead then you get much smaller archives.
We now need tar-ustar anyway as there are a few filename > 100
characters long. The automake documentation says it should be almost
universally supported now, and Solaris 9's tar supports them, which
is a good sign. If anyone is unable to unpack them with their native
tar, they can download GNU tar with less bandwidth than they saved
downloading the smaller xapian-core tarball!
More information about the Xapian-devel