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Setting a bash variable from backtick operator fails


While working on diagnosing an issue with autotools, I found Cygwin's
bash seems to not be able to set a variable from backtick substitution,
at least on my system (Cygwin x86_64, updated today, on Win10)


On a Linux system it works as expected:

$ test=`echo "x86_64-pc-cygwin" | sed 's/-[^-]*$//'`; echo $test

x86_64-pc


On a Cygwin system it doesn't:

$ test=`echo "x86_64-pc-cygwin" | sed 's/-[^-]*$//'`; echo $test

(no output)


This also happens in scripts (where I originally encountered the
problem), not just on the command line.

Directly outputting it (echo `echo "x86_64-pc-cygwin" | sed
's/-[^-]*$//'`) works fine, it seems to be specifically related to
setting a variable.

Any suggestions?

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