> If that is the case, compile and link the corresponding config tests to > see what the real behavior is (this involves building a library in the > process, something stdcxx can do but RCB can't). I'm sorry but I don't know what you mean by the corresponding config tests. RCB is not available on zOS. Where would I find these tests? The version I'm currently working with is sp7. I found a macro _RWSTD_NO_COLLAPSE_TEMPLATE_STATICS that I have defined in the rwc_std_11d.h file. I'm compiling now to see if it makes a difference. Is this the macro you meant? Thanks, Nicole Willson Consulting Engineer Rogue Wave Software, Inc. A Division of Quovadx 303-545-3210