4.21 build failure

[Andreas Schwab]

4.21 fails to build for aarch64:

checking gnu/stubs-32.h usability... no
checking gnu/stubs-32.h presence... no
checking for gnu/stubs-32.h... no
configure: Created empty gnu/stubs-32.h
checking for m32 personality compile support... no
checking whether to enable m32 personality support... no
configure: error: Cannot enable m32 personality support

Andreas.

-- 
Andreas Schwab, schwab at linux-m68k.org
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"And now for something completely different."