FreeBSD_HEAD_arm64 - Build #739 - Fixed

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FreeBSD_HEAD_arm64 - Build #739 - Fixed:

Build information: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_arm64/739/
Full change log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_arm64/739/changes
Full build log: https://jenkins.FreeBSD.org/job/FreeBSD_HEAD_arm64/739/console

Change summaries:

286110 by jmg:
temporarily fix build..  This isn't the final fix, and testing is
still on going, but it has passed world for mips and powerpc...

I know this has an extra semicolon, but this is the patch that is
tested...

Looks like better fix is to use _Static_assert...