waf-utils.eclass checks for [[ "${WAF_VERBOSE}" ]] on line 101, but unconditionally sets it on line 29 The check should probably be [[ "${WAF_VERBOSE}" == "ON" ]] instead I'm also not convinced this should be on by default, but that's a different issue
Fixed in 570116e5ff38141c0326686e71d912f5aebe4ff5