port "cask" -- installing prebuilt binaries

[Nils Breunese]

OpenJDK is open source, so it can be built from source. However, it is quite a complex and lengthy build. As the maintainer of the openjdk* ports I decided to use the binaries provided by the AdoptOpenJDK (for the HotSpot VM and OpenJ9 VM based JDK’s) and GraalVM projects. I personally wouldn’t want to replicate their builds in MacPorts and I don’t think anyone would enjoy waiting for MacPorts to build OpenJDK from source on their machine, because that can take a couple of hours. But theoretically the openjdk* ports could be changed to build from source. If anyone wants to have a go at that, be my guest!

Nils.

> Op 7 aug. 2020 om 10:09 heeft Georges Martin <jrjsmrtn at gmail.com> het volgende geschreven:
> 
> Good point.
> 
> And I just updated postgresql-jdbc, which depends on binary-only openjdk*... :-|
> 
>> Le 7 août 2020 à 08:59, Ryan Schmidt <ryandesign at macports.org> a écrit :
>> 
>> 
>> 
>>>> On Aug 5, 2020, at 07:52, Georges Martin wrote:
>>> 
>>> If MacPorts starts to mix both approaches, I worry we may end up having (open source) packages depending on closed source, binary packages.
>> 
>> We already have that, by necessity. For example, php-excel is an open source php module that depends on the closed-source libxl library, for which we have a port. php-oracle, an open source php module distributed as part of php itself, depends on the closed-source oracle-instantclient library, for which we have a port.