Hello I am trying to install boost on a macintosh (Tiger). I downloaded the boost-jam-3.1.13-1-macosxppc.tgz file and uncompressed it in a folder: /Developer/Libraries/boost there I installed bjam and in the Terminal I typed: ./bjam "-sTOOLS=darwin" install everything things run smoothly until I get a lot of error messages like: ...skipped <@boost!include!boost-1_33_1!boost!wave!util>symbol_table.hpp for lack of <directory-grist>/usr/local/include/boost-1_33_1/boost/wave/util... ...skipped <@boost!include!boost-1_33_1!boost!wave!util>time_conversion_helper.hpp for lack of <directory-grist>/usr/local/include/boost-1_33_1/boost/wave/util... ...skipped <@boost!include!boost-1_33_1!boost!wave!util>transform_iterator.hpp for lack of <directory-grist>/usr/local/include/boost-1_33_1/boost/wave/util... ...skipped <@boost!include!boost-1_33_1!boost!wave!util>unput_queue_iterator.hpp for lack of <directory-grist>/usr/local/include/boost-1_33_1/boost/wave/util... and the installation process ends with ...failed updating 8 targets... ...skipped 3649 targets... ...updated 709 targets... Any idea on what I am doing wrong? Thanks in advance