fi
# need to install g++ first so the local arch will get filtered out later
-which g++ > /dev/null || (set -x; sudo apt-get install build-essential g++)
+which g++ > /dev/null || (set -x; sudo apt-get install -y build-essential g++)
needed=()
which ccache > /dev/null || needed+=(ccache)
if ((${#needed[@]})); then
- (set -x; sudo apt-get install "${needed[@]}")
+ (set -x; sudo apt-get install -y "${needed[@]}")
fi