I'm working on a cross-platform project. What I need is the preprocessor symbol for Visual C++. For example, VC doesn't seem to have unistd.h, so I have to do something similar to this: <br><br>#ifdef [VC's symbol here] <br>#include <direct.h> <br>#endif <br><br>Any help? <br><br>Thanks, <br>Greg <br><br>