Hi, I'm having a problem trying to compile the regex library for Codewarrior 9.3 on the Mac, for an x86 target. There wasn't a Codewarrior project so I created my own and included the source code under libs/regex/src, I'm creating a static library. 1.31.0 and 1.32.0 have the same problem: The problem is that for a Codewarrior x86 target (running on a Mac), boost configures it's BOOST_USE_FACET macro to be the standard conforming std::use_facet. Codewarrior's use_facet takes two parameters in this case. I added the two following #defines to the C++ Preprocessor preference panel: #define BOOST_NO_STD_USE_FACET #define BOOST_HAS_TWO_ARG_USE_FACET and it compiled. Is this the right fix? Should all that boost configuration stuff have spotted this set up and configured accordingly? Thanks for any help. -- Steve.