I have some compile problems when I include regex.hpp from boost 1.27.0, that seem to be internal to the interaction between my platform and compiler.

Are these known problems, and if so, what is the solution?

ratts:~/cpp/classperf$ uname -a Linux ratts 2.2.6 #46 Tue Apr 27 16:40:54 CDT 1999 i486 unknown ratts:~/cpp/classperf$ gcc -v Reading specs from /usr/lib/gcc-lib/i486-linux/2.7.2.3/specs gcc version 2.7.2.3

Sorry, but I don't think that either boost or the regex lib has ever been testsed on a compiler that old (gcc 2.7?) You could try reading about boost's configuration options (libs/config/config.htm) and then running the configure script under libs/config. - John Maddock http://ourworld.compuserve.com/homepages/john_maddock/