--- ClanLib-0.8.1/Sources/Core/IOData/Generic/inputsource_file.cpp~ 2007-10-21 08:14:01.000000000 +0800 +++ ClanLib-0.8.1/Sources/Core/IOData/Generic/inputsource_file.cpp 2012-12-24 17:08:39.891023553 +0800 @@ -33,6 +33,7 @@ #include <direct.h> #endif #include <cstring> +#include <unistd.h> #include <API/Core/IOData/inputsource_file.h> CL_InputSource_File::CL_InputSource_File(const std::string &_filename)