Hi Titus, Yann and all, I wrote a short script for MacOS SL and crosstool-ng-1.6.0. I got an error with libtool, because the crosstool-ng/configure wrote: Checking for 'libtool'... no libtool 1.5.26 or above was not found I used the newest version of libtool 2.2.6b_0. Script and log-file see attachment. Can anyone please help me?