RFR: 8295884: Implement IDE support for Eclipse [v30]

[Julian Waters]

On Mon, 23 Jan 2023 15:11:14 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>> Oh my god, thanks so much for that pointer, this likely would've been so much easier to do, zzz
>> 
>> I'll do that after implementing extracting defines from the command line though, to make it less messy
>
> @TheShermanTanker If you intend to rewrite this using template files, maybe set the PR in Draft state?

@magicus Sorry for the bother, just a quick question, can `REPLACEMENTS` take a Makefile variable that has newlines in it? For instance

NATURES := \
    java \
    c \
    c++

REPLACEMENTS := \
    @@NATURES@@ => $(NATURES), \


(Not actual Eclipse xml format, the above is just for demonstration purposes)

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PR: https://git.openjdk.org/jdk/pull/10853