[jdk21u-dev] RFR: 8372977: Unnecessary gthread-2.0 loading [v2]

[Goetz Lindenmaier]

> I backport this for parity with 21.0.11-oracle.
> 
> Update:  The clean backport breaks the build.  There are two gtk implementations in 
> OpenJDK 21: gtk2 and gtk3.  This change adresses gtk3, see description in
> original JBS issue.  Gtk2 was removed in 8329471: "Remove GTK2" in 24.
> 
> Gtk2 implements the same functions as gtk3, so we can not remove
> the decls in the header.  See second commit.

Goetz Lindenmaier has updated the pull request incrementally with one additional commit since the last revision:

  Undo changes in header, needed for gtk2. See 8329471: Remove GTK2

-------------

Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/2515/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/2515/files/4a3edc3b..daa3ad0c

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2515&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2515&range=00-01

  Stats: 6 lines in 1 file changed: 6 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2515.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2515/head:pull/2515

PR: https://git.openjdk.org/jdk21u-dev/pull/2515