[jdk15u-dev] RFR: 8266545: 8261169 broke Harfbuzz build with gcc 7 and 8

[Dmitry Cherepanov]

Clean backport of JDK-8266545 on top of JDK-8261169.

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

Commit messages:
 - Backport a86ee9b3f370b59caea2ae78169d13498560cd8e

Changes: https://git.openjdk.java.net/jdk15u-dev/pull/149/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk15u-dev&pr=149&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/jdk15u-dev/pull/149.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk15u-dev pull/149/head:pull/149

PR: https://git.openjdk.java.net/jdk15u-dev/pull/149