Hi there, from what I can see, neither the trunk nor the release branch of the upcoming 1.36 release have applied a fix to an issue in the date_time library, that was raised twice on the Boost mailing lists (once by Lothar Werzinger, once by me) and also submitted via the bug tracker (#2091). It is currently not possible to compile date_time-based programs with gcc 4.3.1 without applying a (slight) modification to a date_time header. I would assume that the problem appears with other gcc 4.3-compilers as well (at least Fedora Core 9 and OpenSUSE 11 use 4.3.x compilers). Lothar suggested an easy fix which, from what I can see, could not have any side-effects. It suffices to change line 161 of the file <Boost-Root>/boost/date_time/tz_db_base.hpp from typedef dst_adjustment_offsets<time_duration_type> dst_adjustment_offsets; to typedef boost::date_time::dst_adjustment_offsets<time_duration_type> dst_adjustment_offsets; This change will affect two occurances of dst_adjustment_offsets in the same function only. Could this still be applied to the release candidate ? It would help a lot! In any case thanks, Ruediger