help with a regex please

[Ken Cunningham]

to fix the universal build of some ports, eg jemalloc, I would like to strip out the host bits from these text strings, eg convert this:

echo "--prefix=/opt/local --with-jemalloc-prefix= --host=aarch64-apple-darwin21.5.0 host_alias=aarch64-apple-darwin21.5.0 CC=/usr/bin/clang”

to this:

echo "--prefix=/opt/local --with-jemalloc-prefix= CC=/usr/bin/clang”

however, my regex-fu is not strong.

Anyone know the secret reinplace regex that might do that?

thx 
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