[Rd] About removing zlib from R-devel

Prof Brian Ripley ripley at stats.ox.ac.uk
Thu Mar 26 16:49:19 CET 2015

On 26/03/2015 14:47, Gábor Csárdi wrote:
> Dear All,
> zlib has been removed from R-devel src/extra recently, and building R
> requires zlib >= 1.2.5. Ubuntu 12.04 LTS (also used on Travis CI) only has
> 1.2.3.

Hmm, 1.2.3 is from July 2005, 1.2.5 from July 2010.

> This means that the next version of R will probably not available on Ubuntu

The 'next version of R' will be 3.2.0, and the pre-3.2.0 sources include 

> 12.04. (Unless I am missing something of course.) Which is probably fine,
> it is almost three years old now.
> I guess R-core is aware of this. Just wanted to be sure.

Yes, although nothing stops you installing zlib >= 1.2.5 from sources.

The minimal required versions of bzip2, pcre, zlib are all from 2010, 
and of liblzma from 2011.

Whereas R-devel will not be released (as 3.3.x) until 2016.

> Best Regads,
> Gabor

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Emeritus Professor of Applied Statistics, University of Oxford
1 South Parks Road, Oxford OX1 3TG, UK

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