[jdk25u-dev] RFR: 8376684: Compile OpenJDK in headless mode without required X11 libraries

[Thomas Devoogdt]

8376684: Compile OpenJDK in headless mode without required X11 libraries

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

Commit messages:
 - Backport 1069ccebcc32e02055985e2babfa2986a2e295ca

Changes: https://git.openjdk.org/jdk25u-dev/pull/242/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk25u-dev&pr=242&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8376684
  Stats: 30 lines in 5 files changed: 14 ins; 5 del; 11 mod
  Patch: https://git.openjdk.org/jdk25u-dev/pull/242.diff
  Fetch: git fetch https://git.openjdk.org/jdk25u-dev.git pull/242/head:pull/242

PR: https://git.openjdk.org/jdk25u-dev/pull/242