zlib configuration : system vs. bundled

[Baesken, Matthias]

Hello,   the updated webrev  is here :


http://cr.openjdk.java.net/~mbaesken/webrevs/8223944.1/


Best regards, Matthias



> 
> 
> On 2019-05-15 01:16, Baesken, Matthias wrote:
> > Hi Alan,   thanks for pointing me  at the old discussion .
> >
> > http://mail.openjdk.java.net/pipermail/build-dev/2016-
> February/016602.html
> >
> > talks about performance benefits .  Are you aware of some  benchmarks
> that showed the improvements ?
> >
> > In reality,  if you have the latest  distro versions you might be lucky and you
> have a nice recent zlib 1.2.11  .
> > However on older distros , you run in reality  into older zlibs  (often I see
> 1.2.8).  I don't think that this is a very good status .
> >
> >
> > At least I think  building.md  should be fixed to  state the real status , the
> current  info is wrong :
> >
> >
> > "Certain third-party libraries used by the JDK (libjpeg, giflib, libpng, lcms
> > and zlib) are included in the JDK repository. The default behavior of the
> > JDK build is to use this version of these libraries, but they might be
> > replaced by an external version. To do so, specify `system` as the
> `<source>`
> > option in these arguments. (The default is `bundled`)."
> >
> >
> >
> > Btw  how is building.html  generated ,  is this coming from  building.md  ?
> 
> Yes, you need to configure with pandoc. Then you run "make
> update-build-docs".
> 
> /Erik
>