は、そうでした申し訳ありません。 例えば #include <windows.h> #include <iostream> int main(void){ std::cout << "test" << std::endl; return 0; } をコンパイルしようとすると _STLP_IMPORT_DECLSPEC long _STLP_STDCALL InterlockedIncrement(long*); ^ d:\dm\bin\..\stlport\stlport\stl/_threads.h(122) : Error: 'InterlockedIncrement' previously declared as something else It was declared as: long __import (__import std func)(long volatile *) It is now declared: long __import (__import std func)(long *) _STLP_IMPORT_DECLSPEC long _STLP_STDCALL InterlockedDecrement(long*); ^ d:\dm\bin\..\stlport\stlport\stl/_threads.h(123) : Error: 'InterlockedDecrement' previously declared as something else It was declared as: long __import (__import std func)(long volatile *) It is now declared: long __import (__import std func)(long *) _STLP_IMPORT_DECLSPEC long _STLP_STDCALL InterlockedExchange(long*, long); ^ d:\dm\bin\..\stlport\stlport\stl/_threads.h(124) : Error: 'InterlockedExchange' previously declared as something else It was declared as: long __import (__import std func)(long volatile *,long ) It is now declared: long __import (__import std func)(long *,long ) --- errorlevel 1 となります。