[gentoo-releng] Re: multiple virtuals

[Pieter Van den Abeele <pvdabeel@gentoo.org>]

On 08 Apr 2004, at 22:14, Marius Mauch wrote:

> So what ppc people want is blackdown-jdk as default provider for
> <=virtual/jdk-1.3 and ibm-jdk as default for >virtual/jdk-1.3. Can
> someone confirm that this understanding is correct?

Yes, that is a correct. I guess that this could be implemented by 
extending the virtuals file format:

virtual/jdk     blackdown ibm

If an application depends on jdk version 1.4, blackdown realizations 
are considered first, if no satisfying one is found, the ibm search 
space is considered.
Even better would be to consider the virtual file as 'preferences'. If 
none of the preferred realizations is satisfying our demand, we look 
for ebuilds realizing virtual/jdk (if we haven't already considered 
them).
Faster and perhaps easier would be to allow versions to be specified:

virtual/jdk-1.4  ibm-1.4
virtual/jdk-1.3  blackdown-1.3

But of course these are only suggestions. The reason why we are not 
eager to change virtual/jdk to ibm-jdk is that this ibm-jdk-1.* has to 
be downloaded manually, and has a license that has to be accepted, 
making distributing it on a livecd difficult. Also, IBMs jdks lack 
certain features such as browser plugins.

Best regards,

Pieter Van den Abeele


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