Hi all, I am trying to compile with clang (svn version) a project that uses Boost GIL (1.49) (among other things). Currently it fails to compile and issues the following message: boost/gil/locator.hpp:267:14: error: call to function 'make_step_iterator' that is neither visible in the template definition nor found by argument-dependent lookup Loking at the code of locator.hpp, I indeed see the call to make_step_iterator but no include of step_iterator.hpp where make_step_iterator is defined. Replacing #include "pixel_iterator.hpp" by #include "step_iterator.hpp" at line 28 of locator.hpp seems to fix my issue with clang. What's a bit strange to me is that the same code compiles fine with gcc 4.5. Am I hitting a GIL bug, a clang bug or am I wrongly calling GIL? I haven't written a small self-contained test code yet but will try to do so in case the answer to my question isn't obvious. Best, Tom