Forest Extension - Not to be found?

[Mario Torre]

2011/7/27 Kelly O'Hair <kelly.ohair at oracle.com>:
>
> On Jul 27, 2011, at 8:47 AM, Mario Torre wrote:
>
>> Il giorno mer, 27/07/2011 alle 08.27 -0700, Kelly O'Hair ha scritto:
>>> On Jul 26, 2011, at 9:52 PM, Weijun Wang wrote:
>>>
>>>>
>>>> Then maybe you should also change BOOTDIR to jdk7.
>>>>
>>>
>>> Good catch, yes the BOOT jdk MUST be jdk7 now, jdk6 will not work due to the
>>> jdk7 features being added to the jdk8 sources.
>>
>> Right, I will amend this (my change were documentation only so far
>> though) but this is not too early now?
>
> Not too early.
>
>>
>> I think jdk8 can still build with jdk6 at this point, because no new
>> features have been added yet that prevent it to work, or am I wrong?
>
> Maybe the changes haven't hit the master yet, or the jdk8/build forest, but they are in the jdk8/tl
> forest.
>
> The java buildtools are starting to use the jdk7 language features, and these are built with the boot
> jdk. And I suspect that langtools has started to use the jdk7 language features too, which also needs
> to be built with the boot jdk.
> So if jdk6 can be used now, that will not last long.
>
> -kto

Ok, so we need to fix it quick then :)

I searched the occurrences of BOOTDIR, it's defined directly only in a
couple of places in the Makefiles.

One is in fact documentation, the other is this:

jdk/make/Makefile:193:  $(MAKE) ALT_BOOTDIR=/opt/java/jdk1.6.0 \n\

A patch for this is trivial, but the occurrences in the README files
are a bit trickier, for example:

"""
After installing <a href="http://fedoraproject.org">Fedora</a> 9
you need to install several build dependencies. The simplest
way to do it is to execute the following commands as user
<tt>root</tt>:
<p/>
<code>yum-builddep java-1.6.0-openjdk</code>
<p/>
<code>yum install gcc gcc-c++</code>
<p/>
"""

That would be yum-builddep java-1.7.0-openjdk then. Now, in Fedora 15
there's no java-1.7.0-openjdk, so I doubt that there is one in Fedora
9 (which is long time unsupported).

Wouldn't make sense to rewrite this part of the guide completely then
to reflect more recent distributions and guidelines?

In any case, in this moment with jdk7 soon to be the requirment for
jdk8, I think that the only way to build the jdk8 would be by first
building the jdk7 in most situation.

What do you think?

Cheers,
Mario

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