Hi John, the current clang (version 3.0 (trunk 135764)) is still emulating gcc-4.2.1 which leads to a lot of the tr1-tests failing with: boost/boost/tr1/detail/config_all.hpp:158:12: fatal error: '../4.2.1/utility' file not found # include BOOST_TR1_STD_HEADER(utility) ^ boost/boost/tr1/detail/config_all.hpp:100:44: note: expanded from: # define BOOST_TR1_STD_HEADER(name) <../__GNUC__.__GNUC_MINOR__.__GNUC_PATCHLEVEL__/name> ^ 1 error generated. if your installed gcc is not 4.2.1. The attached patch fixes this by introducing a special case for clang. This fixes all but eight tr1-tests for clang trunk. Okay to commit? Yours, Jürgen -- * Dipl.-Math. Jürgen Hunold ! Ingenieurgesellschaft für * voice: ++49 511 262926 57 ! Verkehrs- und Eisenbahnwesen mbH * fax : ++49 511 262926 99 ! Lister Straße 15 * juergen.hunold@ivembh.de ! www.ivembh.de * * Geschäftsführer: ! Sitz des Unternehmens: Hannover * Prof. Dr.-Ing. Thomas Siefer ! Amtsgericht Hannover, HRB 56965 * PD Dr.-Ing. Alfons Radtke !