[jdk15u-dev] RFR: 8255790: GTKL&F: Java 16 crashes on initialising GTKL&F on Manjaro Linux

[Dmitry Cherepanov]

Follow up for JDK-8249821: Separate libharfbuzz from libfontmanager

The original patch doesn't apply cleanly. Applied it manually without implicit including parts of other patches for [1]/[2]/[3] that aren't currently in jdk15u. Also, [4] was included as a part of this patch. So the backport for jdk15u should be very similar to the backport for jdk11u.

Tested with the reproducer for JDK-8272149 (fails without the fix, passes with the fix).

[1] JDK-8258484: AIX build fails in Harfbuzz with XLC 16.01.0000.0006
[2] JDK-8074844: Resolve disabled warnings for libfontmanager
[3] JDK-8247872: Upgrade HarfBuzz to the latest 2.7.2
[4] JDK-8272332: --with-harfbuzz=system doesn't add -lharfbuzz after JDK-8255790

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Commit messages:
 - Backport 05fe06a6bafc089c6466ccbdea335e5dbfdaf335

Changes: https://git.openjdk.java.net/jdk15u-dev/pull/143/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk15u-dev&pr=143&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8255790
  Stats: 91 lines in 1 file changed: 5 ins; 50 del; 36 mod
  Patch: https://git.openjdk.java.net/jdk15u-dev/pull/143.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk15u-dev pull/143/head:pull/143

PR: https://git.openjdk.java.net/jdk15u-dev/pull/143