If you remember from the GCC vs MSVC post, I had a problem with templates and GCC. I looked further in to the problem and I found this on some GCC release notes : * You must now use the typename and template keywords to disambiguate dependent names, as required by the C++ standard. So the problem was the missing typename keyword to be compliant to the standard. So this code : template void dostuff(C v){ C::iterator i; } Must be turned into this code : void dostuff(C v){ typename C::iterator i; } And GCC is happy as a puppy! I love happy ends…