id summary reporter owner description type status milestone component version severity resolution keywords cc 12047 Drive letter in Windows is ignored for Build --libdir option Edward Diener Vladimir Prus If the b2 command line specifies --libdir=DriveLetter:/somepath the DriveLetter is completely dropped when Boost build calculates the path and so Boost build considers the --libdir path as /somepath on the current drive. Bugs closed To Be Determined build Boost 1.61.0 Problem invalid libdir