r282057:
Build/install libc, librt, libthr, and msun NetBSD test suites on all
architectures
r282092 (by andrew):
Correct the spelling of MACHINE_CPUARCH, MACHINE_CPU is not set on arm64.
r282106:
Remove per-architecture checks for enabling HAVE_FENV_H
The conditional came from NetBSD, where only select architectures have this
header/support
All architectures on FreeBSD have the necessary support though, so the
conditional's completely unnecessary
make tinderbox done on all architectures (including arm64, where the issue
occurred before) this time
9c310a16d7