Kai Germaschewski f3c2ebbfb8 fix gcc@8.4.0 build (#15729) ... the gcc package.py includes patches for a sanitizer related bug that look like they've been fixed in gcc 8.4.0, which caused `spack install` to fail. This PR excludes patching gcc >= 8.4.0 and < 9.0.0.		2020-03-28 13:06:17 -05:00
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spack	fix gcc@8.4.0 build (#15729)	2020-03-28 13:06:17 -05:00