[NFC][hwasan] Check __GLIBCXX__ before checking _GLIBCXX_RELEASE in test
authorHans Wennborg <hans@chromium.org>
Tue, 1 Mar 2022 08:36:14 +0000 (09:36 +0100)
committerHans Wennborg <hans@chromium.org>
Tue, 1 Mar 2022 08:39:26 +0000 (09:39 +0100)
commit3e6cfc631b816144d1ddfb4bb9f84af43367835c
tree475b20e6b23f8a0ef5026a06a4535aa151e1c7fc
parenta29f8dbb7f3e816344a7be75996eea3ab5a0b5a3
[NFC][hwasan] Check __GLIBCXX__ before checking _GLIBCXX_RELEASE in test

_GLIBCXX_RELEASE wasn't defined before GCC 7.1.

This is another follow-up to https://reviews.llvm.org/D119161
compiler-rt/test/hwasan/TestCases/new-test.cpp