Adding new IBM extended charsets

[Magnus Ihse Bursie]

On 2018-08-05 20:38, Alan Bateman wrote:
>
> As regards the way forward then I think we have to put infrastructure 
> into the build to make it easy to allow specific charsets be included 
> or excluded from specific platforms. As things stand, and as have you 
> have found with your updates to the stdcs-<platform> files, the 
> charsets are generated to be included in either java.base or 
> jdk.charsets. We need another input to the configurability to make it 
> possible to include or exclude so that the main stream platforms do 
> not have to include the IBM charsets. There are several details around 
> this, particularly around aliases, but if we can get that done then we 
> have a lot of flexibility. 

And when you are ready to discuss the required build changes, please 
head over to build-dev at openjdk.java.net. ;-)

The build part of the charset handling is less-than-ideal. I hope we can 
find a way to clean this up as well, as part of streamlining the 
included charsets.

/Magnus