https://issues.dlang.org/show_bug.cgi?id=14674
--- Comment #1 from Kenji Hara <k.hara...@gmail.com> --- (In reply to sigsve from comment #0) > When importing std.stdio in a specific context, causes an "undefined symbols > for architecture" I'm on Windows so I need to guess what "undefined symbols for architecture" is. Maybe it's a linker error? As I can see the Rakefile, it does not compile and link the file src/collector/Stack.d. It would be the reason of linker error. D's import is not same with the #include in C. If you import a module, you also need to compile and link it normally. --