buildroot/support/dependencies/check-host-xzcat.sh

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#!/bin/sh
candidate="$1"
xzcat=`which $candidate 2>/dev/null`
if [ ! -x "$xzcat" ]; then
xzcat=`which xzcat 2>/dev/null`
if [ ! -x "$xzcat" ]; then
# echo nothing: no suitable xzcat found
exit 1
fi
fi
echo $xzcat