maintainer-feedback requested: [Bug 286288] java/openjdk11: use system harfbuzz, ccache, etc.

Bugzilla Automation <[email protected]> has asked freebsd-java (Nobody)
<[email protected]> for maintainer-feedback:
Bug 286288: java/openjdk11: use system harfbuzz, ccache, etc.
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=286288



--- Description ---
1. Upstream's code allows using "system" -- preinstalled harfbuzz -- and so we
should be doing that.

2. A simple hack also allows to use ccache, if enabled locally.

3. Excluding certain files from being extracted saves space and, more
importantly, ensures, that the build does not use bundled headers -- which may
cause declarations of certain things to conflict with the actual definitions
found in the libraries.

That conflict is sure to exist with system harfbuzz -- the fact, which should
be communicated upstream -- and, possibly, with other packages too.