[jdk13u-dev] RFR: 8266545: 8261169 broke Harfbuzz build with gcc 7 and 8

[Olga Mikhaltsova]

I'd like to backport JDK-8266545 to jdk13u as a follow-up to JDK-8261169.

The original patch applied manually because the patched file is in another directory:
make/lib/Awt2dLibraries.gmk instead of make/modules/java.desktop/lib/Awt2dLibraries.gmk.

All regular tests passed (tested on Windows x86/x86_64 (VS 2017), Linux x86/x86_64 (gcc 8.3.0), Mac OS X x86_64 (XCode/Clang 11.0), Linux aarch64 (gcc 9.3.0)).

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Commit messages:
 - Backport a86ee9b3f370b59caea2ae78169d13498560cd8e

Changes: https://git.openjdk.java.net/jdk13u-dev/pull/307/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk13u-dev&pr=307&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8266545
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk13u-dev/pull/307.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk13u-dev pull/307/head:pull/307

PR: https://git.openjdk.java.net/jdk13u-dev/pull/307