On Dec 16, 2006, at 6:50 PM, elw at stderr.org wrote: > /usr/bin/libtool: unknown option character `m' in: -macosx_version_min > Please update your Xcode - your libtool is too old. (Exactly the same question was answered here: http://www.mail-archive.com/r-sig-mac@stat.math.ethz.ch/msg01220.html ) Cheers, Simon