ref: fc5e189ce9e7f0e1e1f585a67c73fddc293c6e9a dir: /scripts/get_waf.sh/
#! /bin/sh set -e set -x WAFURL=https://waf.io/waf-1.9.11 ( which wget > /dev/null && wget -qO waf $WAFURL ) || ( which curl > /dev/null && curl $WAFURL > waf ) chmod +x waf